Jan. 2022, 茨城大学 学長学術表彰

Mar. 2021, 日本農薬学会 業績賞(技術)

Jan. 2008, 日本分析化学会 関東支部 新世紀賞

Nov. 2007, クロマトグラフィー科学会 奨励賞

Development of a new extraction method and functional analysis of phycocyanobilin from unique filamentous cyanobacteria　　　　　　　　　　　　　　　
J. Aoki; T. Yarita; M. Hasegawa; M. Asayama
J. Biotech, Nov. 2024, [Reviewed]

親水性－親油性バランス型充填剤を用いた簡便な固相抽出精製による二枚貝中オカダ酸群の精密定量　　　　　　　　　　　　　　　
鳥居塚南; 上原由理香; 長谷川守文; 渡辺卓穂; 鎗田孝, Last
分析化学, Apr. 2024, [Reviewed]

Assessment of the long-term stability of pesticide residues under freezing conditions in brown rice and soybean certified reference materials
T. Otake; Y. Aoyagi; T. Yarita, Last, Pesticide Science Society of Japan
J. Pestic. Sci., Feb. 2024, [Reviewed]

Coproduction of lipids and carotenoids by the novel green alga Coelastrella sp. depending on cultivation conditions
M. Saito; H. Watanabe; M. Sasaki; M. Ookubo; T. Yarita; M; Shiraiwa; M. Asayama, Elsevier
Biotech. Rep., Mar. 2023, [Reviewed]

Characterization of diarrhetic shellfish toxins in the mizuhopecten yessoensis (scallop) midgut gland by high-performance liquid chromatography–tandem mass spectrometry (HPLC-MS/MS)　　　　　　　　　　　　　　　
T. Yarita; S. Inagaki, Lead
Anal. Lett., Feb. 2023, [Reviewed]

Applicability of superheated water extraction for the quantification of pesticide residues in leafy vegetables
T. YaritaA; HasegawaH. Tada, Lead, Jpn. Soc. Anal. Chem.
Anal. Sci., Nov. 2021, [Reviewed]

Internationally harmonized certified reference materials and proficiency testings for pesticide residue analysis　　　　　　　　　　　　　　　
T. Otake; T. Yarita, Last
J. Pestic. Sci., Aug. 2021, [Reviewed], [Invited]

Characterization of scallop midgut gland certified reference material for quantification of diarrhetic shellfish toxins
T. Yarita; S. Inagaki; A. Miyamoto; T. Yamazaki; M. Kawaguchi; H. Uchida; A. Takatsu; T. Suzuki, Lead, A scallop midgut gland certified reference material, NMIJ CRM 7520-a, was developed for validation and quality assurance during the inspection of shellfish for diarrhetic shellfish toxins. The candidate material was prepared by using naturally-toxic and nontoxic boiled midgut glands spiked with okadaic acid (OA). The homogeneity and stability of the material were found to be appropriate. For the characterization of OA and dinophysistoxin-1 (DTX1), nine participants were involved in a co-laboratory study based on the Japanese Official Testing Method, where the compounds were assayed by liquid chromatography-tandem mass spectrometry following alkaline hydrolysis. The analytical values were obtained by the standard addition method with a standard spiking solution calibrated using the standard-solution certified reference materials OA and DTX1. The certified concentrations with expanded uncertainties (coverage factor k = 2, approximate 95% confidence interval) were determined to be (0.205 ± 0.061) mg/kg for OA and (0.45 ± 0.11) mg/kg for DTX1., Elsevier
Food Chem., Nov. 2019, [Reviewed]

Proficiency testing by the National Metrology Institute of Japan for quantification of pesticide residues in grain samples from 2012 to 2018
T. Otake; T. Yarita; Y. Aoyagi; N. Hanari; A. Takatsu
J. Pestic. Sci., Aug. 2019, [Reviewed]

Comparison of assigned values from participants’ results, spiked concentrations of test samples, and isotope dilution mass spectrometric results in proficiency testing for pesticide residue analysis
T. Yarita; T. Otake; Y. Aoyagi; N. Takasaka; T. Suzuki; and T. Watanabe, Lead
J. AOAC Int., Jul. 2018, [Reviewed]

Interlaboratory comparison of liquid chromatography-tandem mass spectrometry quantification of diarrhetic shellfish toxins in scallop midgut glands
T. Yarita; S. Inagaki; T. Yamazaki; M. Kawaguchi; H. Uchida; A. Takatsu; T. Suzuki, Lead, Elsevier
Food Chem., Jun. 2018, [Reviewed]

Difference between Consensus Value of Participants' Results and Isotope-Dilution Mass Spectrometric Results in Proficiency Testing for Pesticide Residues in Husked Wheat
T. Yarita; T. Otake; Y. Aoyagi; M. Numata; A. Takatsu, Lead
Anal. Sci., May 2016, [Reviewed]

Proficiency testing for quantification of pesticide residues in treated brown rice samples: Comparison of performance of Japanese official multiresidue, modified QuEChERS, and QuEChERS methods
T. Otake; T. Yarita; T. Sakamoto; M. Numata; A. Takatsu
J. AOAC Int., May 2016, [Reviewed]

Evaluation of the impact of matrix effect on quantification of pesticides in foods by gas chromatography-mass spectrometry using isotope-labeled internal standards
T. Yarita; Y. Aoyagi; T. Otake, Lead
J. Chromatogr. A, May 2015, [Reviewed]

Certification of reference materials for the determination of alkylphenols　　　　　　　　　　　　　　　
N. Hanari; K. Ishikawa; Y. Shimizu; S. Otsuka; R. Iwasawa; N. Fujiki; M. Numata; T. Yarita; K. Kato, Springer
Anal. Bioanal. Chem., Feb. 2015, [Reviewed]

Proficiency testing for determination of pesticide residues in soybean: Comparison of assigned values from participants' results and isotope-dilution mass spectrometric determination
T. Yarita; T. Otake; Y. Aoyagi; T. Kuroiwa; M. Numata; A. Takatsu, Lead
Talanta, Jan. 2015, [Reviewed]

Development of a certified reference material for the determination of perfluorooctanoic acid
N. Hanari; T. Yamazaki; N. Itoh; T. Yarita; N. Fujiki; R. Iwasawa; Y. Aoyagi; M. Numata
Accred. Qual. Assur., Oct. 2014, [Reviewed]

Development of soybean certified reference material for pesticide residue analysis
T. Yarita; T. Otake; Y. Aoyagi; Y. Kuroda; M. Numata; H. Iwata; M. Watai; H. Mitsuda; T. Fujikawa; H. Ota, Lead
Talanta, Feb. 2014, [Reviewed]

Variation in concentration of perfluorooctanoic acid in methanol solutions during storage
N. Hanari; N. Itoh; K. Ishikawa; T. Yarita; M. Numata
Chemosohere, Jan. 2014, [Reviewed]

Evaluation of the performance of 57 Japanese participating laboratories by two types of z-scores in proficiency test for the quantification of pesticide residues in brown rice
T. Otake; T. Yarita; Y. Aoyagi; M. Numata; A. Takatsu, Springer Verlag
Anal. Bioanal. Chem., 2014, [Reviewed]

Certified calibration solution reference material for the determination of perfluorooctane sulfonate from the National Metrology Institute of Japan (NMIJ)
N. Hanari; N. Itoh; K. Ishikawa; R. Iwasawa; Y. Aoyagi; T. Yarita; M. Numata
Int. J. Environ. Anal. Chem., May 2013, [Reviewed]

Separation of parabens on a zirconia-based stationary phase in superheated water chromatography
T. Yarita; Y. Aoyagi; H. Sasai; A. Nishigaki; M. Shibukawa, Lead
Anal. Sci., Feb. 2013, [Reviewed]

Development of apple certified reference material for quantification of organophosphorus and pyrethroid pesticides　　　　　　　　　　　　　　　
T. Otake; T. Yarita; Y. Aoyagi; Y. Kuroda; M. Numata; H. Iwata; M. Watai; H. Mitsuda; T. Fujikawa; H. Ota, Elsevier
Food Chem., Sep. 2012, [Reviewed]

Production and characterization of crop certified reference materials for pesticide residue analysis　　　　　　　　　　　　　　　
T. Yarita; T. Otake; Y. Aoyagi; Y. Kuroda; M. Numata, Lead
Proceedings of the 4th international symposium on pesticides and environmental safety, Sep. 2012

Evaluation of pressurized liquid extraction for determination of organophosphorus and pyrethroid pesticides in soybean
T. Yarita; Y. Aoyagi; T. Otake, Lead
J. Environ. Sci. Health B, Aug. 2012, [Reviewed]

Evaluation of microwave-assisted extraction for the analysis of organophosphorus and pyrethroid pesticides in green onions
T. Otake; Y. Kuroda; Y. Aoyagi; T. Yarita, Last
J. AOAC Int., Jan. 2012, [Reviewed]

Evaluation of the thermal effect on separation selectivity in anion-exchange processes using superheated water ion-exchange chromatography
M. Shibukawa; A. Taguchi; Y. Suzuki; K. Saitoh; T. Hiaki; T. Yarita, Last
Analyst, 2012, [Reviewed]

計量法校正事業者登録制度用アルキルフェノール基準物質の差数法による純度評価　　　　　　　　　　　　　　　
羽成修康; 石川啓一郎; 鎗田孝; 大塚聡子; 岩澤良子; 藤木直美; 沼田雅彦, 日本分析化学会
分析化学, Nov. 2011, [Reviewed]

Development of green onion and cabbage certified reference materials for quantification of organophosphorus and pyrethroid pesticides　　　　　　　　　　　　　　　
T. Otake; T. Yarita; Y. Aoyagi; Y. Kuroda; M. Numata; H. Iwata; K. Mizukoshi; M. Nakamura; M. Watai; H. Mitsuda; T. Fujikawa; H. Ota, Am. Chem. Soc.
J. Agr. Food Chem., Jul. 2011, [Reviewed]

Accurate quantification of polycyclic aromatic hydrocarbons in dust samples using microwave-assisted solvent extraction combined with isotope-dilution mass spectrometry　　　　　　　　　　　　　　　
N. Itoh; A. Fushimi; T. Yarita; Y. Aoyagi; M. Numata, Elsevier
Anal. Chim. Acta, Jul. 2011, [Reviewed]

Mass balance method for purity assay of phthalic acid esters: development of primary reference materials as traceability sources in the Japan Calibration Service System
K. Ishikawa; N. Hanari; Y. Shimizu; T. Ihara; A. Nomura; M. Numata; T. Yarita; K. Kato; K. Chiba
Accred. Qual. Assur., Jun. 2011, [Reviewed]

Water content variation of p-n-heptylphenol reference material
N. Hanari; R. Iwasawa; S. Otsuka; N. Fujiki; A. Matsumoto; T. Ihara; K. Ishikawa; T. Yarita, Last
Accred. Qual. Assur., Dec. 2010, [Reviewed]

Characterization of certified reference material for quantification of polychlorinated biphenyls and organochlorine pesticides in fish
T. Otake; Y. Aoyagi; T. Yarita; M. Numata
Anal. Bioanal. Chem., Jul. 2010, [Reviewed]

Superheated water ion-exchange chromatography: an experimental approach for interpretation of separation selectivity in ion-exchange process
M. Shibukawa; T. Shimasaki; T. Saito; T. Yarita, Last
Anal. Chem., Oct. 2009, [Reviewed]

Determination of phosphorus using capillary electrophoresis and micro-high-performance liquid chromatography hyphenated with inductively coupled plasma mass spectrometry for the quantification of nucleotides
S. Fujii; K. Inagaki; A. Takatsu; T. Yarita; K. Chiba
J. Chromatogr. A, Oct. 2009, [Reviewed]

Development of certified reference material for quantification of two pesticides in brown rice
T. Otake; N. Itoh; Y. Aoyagi; M. Matsuo; N. Hanari; S. Otsuka; T. Yarita, Last
J. Agr. Food Chem., Sep. 2009, [Reviewed]

Certified reference materials for determination of phthalates and alkylphenols from the National Metrology Institute of Japan　　　　　　　　　　　　　　　
N. Hanari; K. Ishikawa; Y. Shimizu; R. Iwasawa; S. Otsuka; N. Fujiki; X Bao; T. Yarita; K. Kato; N. Yamashita, Internal. Symp. Halogenated Persistent Org. Poll.
Organohalogen Compds., Aug. 2009

Total and Species-Specific Quantitative Analyses of Trace Elements in Sediment by Isotope Dilution Inductively Coupled Plasma Mass Spectrometry
K. Inagaki; A. Takatsu; T. Yarita; K. Okamoto; K. Chiba
Bunseki Kagaku, Apr. 2009, [Reviewed]

Certified reference material for quantification of polycyclic aromatic hydrocarbons in sediment from the National Metrology Institute of Japan
Nobuyasu Itoh; Yoshie Aoyagi; Akiko Takatsu; Takashi Yarita
ANALYTICAL AND BIOANALYTICAL CHEMISTRY, Apr. 2009, [Reviewed]

MECHANISM OF IONIZATION OF POLYCYCLIC AROMATIC HYDROCARBONS BY A TOLUENE/ANISOLE MIXTURE AS A DOPANT IN LIQUID CHROMATOGRAPHY/DOPANT-ASSISTED ATMOSPHERIC-PRESSURE PHOTOIONIZATION/MASS SPECTROMETRY
Nobuyasu Itoh; Tomohiro Narukawa; Masahiko Numata; Yoshie Aoyagi; Takashi Yarita; Akiko Takatsu
POLYCYCLIC AROMATIC COMPOUNDS, 2009, [Reviewed]

Fragmentation of a non-ester pyrethroid insecticide by atmospheric pressure chemical ionization　　　　　　　　　　　　　　　
N. Itoh; T. Kinumi; M. Inagaki; T. Yarita, Last, IM Publication
Eur. J. Mass Spectrom., Jan. 2009, [Reviewed]

Multiresidue analysis and monitoring of pesticides in rice by pressurized liquid extraction
Takamitsu Otake; Yoshie Aoyagi; Takashi Yarita
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMINANTS AND AGRICULTURAL WASTES, 2009, [Reviewed]

Application of pesticide quantification in unpolished rice by LC-dopant-assisted atmospheric pressure photoionization-MS
Nobuyasu Itoh; Takamitsu Otake; Yoshie Aoyagi; Mayumi Matsuo; Takashi Yarita, Friedr. Vieweg und Sohn Verlags GmbH
Chromatographia, 2009, [Reviewed]

Evaluation of microwave-assisted extraction for the analysis of polychlorinated biphenyls and organochlorine pesticides in fish　　　　　　　　　　　　　　　
T. Otake; Y. Aoyagi; M. Numata; T. Yarita, Last, AOAC Int.
J. AOAC Int., Nov. 2008, [Reviewed]

Calcium tungstate coprecipitation for removal of Sr interference with determination of Rb by ID-ICP-MS　　　　　　　　　　　　　　　
Y. Zhu; K. Inagaki; T. Yarita; K. Chiba, Elsevier
Talanta, Oct. 2008, [Reviewed]

Preparation of a sulfoxide group and ammonium salt-bonded silica stationary phase for separation of polychlorinated biphenyls from mineral oils
M. Numata; T. Kaneko; Q. Mi; M. Ye; T. Kawamata; M. Matsuo; T. Yarita, Last, Elsevier
J. Chromatogr. A, Oct. 2008, [Reviewed]

Development of saw palmetto (Serenoa repens) fruit and extract standard reference materials
Michele M. Schantz; Mary Bedner; Stephen E. Long; John L. Molloy; Karen E. Murphy; Barbara J. Porter; Karsten Putzbach; Catherine A. Rimmer; Lane C. Sander; Katherine E. Sharpless; Jeanice B. Thomas; Stephen A. Wise; Laura J. Wood; James H. Yen; Takashi Yarita; Agnes NguyenPho; Wendy R. Sorenson; Joseph M. Betz
ANALYTICAL AND BIOANALYTICAL CHEMISTRY, Oct. 2008, [Reviewed]

Accurate quantification of polycyclic aromatic hydrocarbons in environmental samples using deuterium-labeled compounds as internal standards
Nobuyasu Itoh; Masahiko Numata; Yoshie Aoyagi; Takashi Yarita
ANALYTICAL SCIENCES, Sep. 2008, [Reviewed]

Differences in the yields of polycyclic aromatic hydrocarbons by pressurized liquid extraction and the Japanese official method
Nobuyasu Itoh; Takamitsu Otake; Masahiko Numata; Yoshie Aoyagi; Mayumi Matsuo; Takashi Yarita
ANALYTICAL SCIENCES, Sep. 2008, [Reviewed]

Certification of methylmercury in fish tissue reference materials by species-specific isotope dilution mass spectrometric analysis　　　　　　　　　　　　　　　
K. Inagaki; T. Kuroiwa; T. Narukawa; T. Yarita; A. Takatsu; K. Okamoto; K. Chiba, Springer
Anal. Bioanal. Chem., Aug. 2008, [Reviewed]

Certified reference materials for determination of p-n-nonylphenol and p-n-heptylphenol form the National Metrology Institute of Japan　　　　　　　　　　　　　　　
N. Hanari; K. Ishikawa; Y. Shimizu; R. Iwasawa; S. Otsuka; T. Yarita, Last, Internal. Symp. Halogenated Persistent Org. Poll.
Organohalogen Compds., Aug. 2008

Preparation and characterization of organic calibration solutions for development of certified reference materials at the National Metrology Institute of Japan
K. Ishikawa; N. Hanari; Y. Shimizu; T. Ihara; T. Maeda; A. Nomura; T. Yarita; K. Kato; K. Chiba
ACCREDITATION AND QUALITY ASSURANCE, Jul. 2008, [Reviewed]

Mineral oil certified reference materials for the determination of polychlorinated biphenyls from the National Metrology Institute of Japan (NMIJ)
Masahiko Numata; Yoshie Aoyagi; Mayumi Matsuo; Keiichiro Ishikawa; Nobuyasu Hanari; Satoko Otsuka; Yoko Tsuda; Takashi Yarita
ANALYTICAL AND BIOANALYTICAL CHEMISTRY, Jul. 2008, [Reviewed]

Simultaneous determination of trimethyl- and triethyllead in urban dust by species-specific isotope dilution/gas chromatography-inductively coupled plasma mass spectrometry
Tomoki Yabutani; Junko Motonaka; Kazumi Inagaki; Akiko Takatsu; Takashi Yarita; Koichi Chiba
ANALYTICAL SCIENCES, Jun. 2008, [Reviewed]

精米粉末中カドミウム及び主要無機質の技能試験
進藤久美子; 塚越芳樹; 内藤成弘; 稲垣和三; 鎗田孝; 成川知弘; 千葉光一; 安井明美, A candidate reference material of milled rice flour including 0.2 mg/kg dw (dry weight basis) cadmium in the matrix, which is about half as much as the Codex guideline level of 0.4 mg/kg fw (fresh weight basis), was used for proficiency testing. Codex Alimentarius Commission develops international food standards. Cadmium (Cd), sodium, potassium, magnesium, calcium, phosphorus, iron, zinc, copper and manganese (Mn) were analyzed. While cadmium analysis was required for all participants, other element analyses were discretionary. Fifty-seven participants submitted 59 results. Data analysis was conducted according to the harmonized protocol for proficiency testing, revised cooperatively by the international standardizing organizations IUPAC, ISO, and AOAC International (2006). The assigned value of Cd, derived from 57 data after removing outliers, was 0.189 mg/kg dw, and its expanded uncertainty (k = 2) was 0.004 mg/kg dw. This assigned value was not significantly different (P >0.05) from the cadmium content (0.195 mg/kg dw) with an expanded uncertainty of 0.006 mg/kg dw of the candidate reference material. Relative uncertainties of 0.8 to 2.3% of the assigned values of the elements derived from this proficiency testing data were almost in the same range of relative uncertainties (1.5 to 2.0%) as the contents of the candidate reference material. The ratios of the number of z scores between -2 and +2 to that of all scores were 95% for Cd and 97% for Mn. However, those ratios for other elements were less than 90%. Therefore, participants with z scores outside the range from -2 to +2, whose methods should be self-investigated and remedied, were found for all 10 elements, especially many participants for other elements, except Cd and Mn., 日本分析化学会
分析化学, Jun. 2008, [Reviewed]

Development of a highly precise ID-ICP-SFMS method for analysis of low concentrations of lead in rice flour reference materials　　　　　　　　　　　　　　　
Y. Zhu; K. Inagaki; T. Yarita; K. Chiba, Springer
Anal. Bioanal. Chem., May 2008, [Reviewed]

Alkaline extraction in combination with microwave-assisted extraction followed by solid-phase extraction treatment for polycyclic aromatic hydrocarbons in a sediment sample　　　　　　　　　　　　　　　
N. Itoh; M. Numata; T. Yarita, Last, Elsevier
Anal. Chim. Acta, Apr. 2008, [Reviewed]

Calibration of an evaporative light-scattering detector as a mass detector for supercritical fluid chromatography by using uniform poly(ethylene glycol) oligomers　　　　　　　　　　　　　　　
K. Takahashi; S. Matsuyama; T. Saito; H. Kato; S. Kinugasa; T. Yarita; T. Maeda; H. Kitazawa; M. Bonoshita, Elsevier
J. Chromatogr. A, Apr. 2008, [Reviewed]

Comparison of low-level polycyclic aromatic hydrocarbons in sediment revealed by Soxhlet extraction, microwave-assisted extraction, and pressurized liquid extraction
Nobuyasu Itoh; Masahiko Numata; Yoshie Aoyagi; Takashi Yarita
ANALYTICA CHIMICA ACTA, Mar. 2008, [Reviewed]

Preparation of sulfoxide residue bonded silica stationary phase for separation of polychlorinated biphenyls from mineral oils (vol 79, pg 9211, 2007)
Masahiko Numata; Yoshie Aoyagi; Yoko Tsuda; Takashi Yarita; Akiko Takatsu
ANALYTICAL CHEMISTRY, Jan. 2008, [Reviewed]

Evaluation of pressurized liquid extraction for the analysis of four pesticides in unpolished rice
Takamitsu Otake; Yoshie Aoyagi; Mayumi Matsuo; Nobuyasu Itoh; Takashi Yarita
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMINANTS AND AGRICULTURAL WASTES, 2008, [Reviewed]

CERTIFIED CALIBRATION SOLUTION REFERENCE MATERIAL FOR THE DETERMINATION OF BENZO[A]PYRENE FROM THE NATIONAL METROLOGY INSTITUTE OF JAPAN (NMIJ)
N. Hanari; K. Ishikawa; S. Otsuka; K. Higuchi; R. Iwasawa; T. Yarita
POLYCYCLIC AROMATIC COMPOUNDS, 2008, [Reviewed]

Preparation of sulfoxide residue bonded silica stationary phase for separation of polychlorinated biphenyls from mineral oils
Masahiko Numata; Yoshie Aoyagi; Yoko Tsuda; Takashi Yarita; Akiko Takatsu
ANALYTICAL CHEMISTRY, Dec. 2007, [Reviewed]

Evaluation of behavioral differences between native polycyclic aromatic hydrocarbons and C-13-labeled internal standards during clean-up steps of analysis
Nobuyasu Itoh; Masahiko Numata; Takashi Yarita
ANALYTICAL SCIENCES, Oct. 2007, [Reviewed]

termination of cadmium in grain by isotope dilution ICP-MS and coprecipitation using sample constituents as a carrier precipitant
K. Inagaki; T. Narukawa; T. Yarita; A. Takatsu; K. Okamoto; K. Chiba
Anal. Bioanal. Chem., Oct. 2007, [Reviewed]

Preparation and certification of arsenobetaine reference material NMIJ CRM 7901-a
Tomohiro Narukawa; Koichi Chiba; Takayoshi Kuroiwa; Takashi Yarita; Akiko Takatsu
ANALYTICAL AND BIOANALYTICAL CHEMISTRY, Sep. 2007, [Reviewed]

Preparation and characterization of standard reference material 3276, carrot extract in oil
Katherine E. Sharpless; Jeanice Brown Thomas; David L. Duewer; Karsten Putzbach; Catherine A. Rimmer; Lane C. Sander; Michele M. Schantz; Stephen A. Wise; Takashi Yarita; James H. Yen
ANALYTICAL AND BIOANALYTICAL CHEMISTRY, Sep. 2007, [Reviewed]

Matrix certified reference materials for determination of persistent organic pollutants from the National Metrology Institute of Japan (NMIJ)　　　　　　　　　　　　　　　
M. Numata; T. Yarita; K. Ishikawa; T. Ihara; N. Hanari; Y. Aoyagi; S. Otsuka; M. Matsuo; Y. Tsuda; M. Yamazaki; K. Kato; T. Maeda; T. Takatsu; K. Okamoto; K. Chiba, Internal. Symp. Halogenated Persistent Org. Poll.
Organohalogen Compds., Sep. 2007

Sulfoxide residue-bonded silica stationary phases for separation of polychlorinated biphenyls from insulation oil　　　　　　　　　　　　　　　
M. Numata; T. Kaneko; Q. Mi; M. Ye; T. Kawamata; T. Otaka; T. Yarita, Last, Internal. Symp. Halogenated Persistent Org. Poll.
Organohalogen Compds., Sep. 2007

Certification of butyltins and phenyltins in marine sediment certified reference material by species-specific isotope-dilution mass spectrometric analysis using synthesized Sn-118-enriched organotin compounds
Kazumi Inagaki; Akiko Takatsu; Takuro Watanabe; Yoshie Aoyagi; Takashi Yarita; Kensaku Okamoto; Koichi Chiba
ANALYTICAL AND BIOANALYTICAL CHEMISTRY, Apr. 2007, [Reviewed]

Sediment certified reference materials for the determination of polychlorinated biphenyls and organochlorine pesticides from the National Metrology Institute of Japan (NMIJ)　　　　　　　　　　　　　　　
M. Numata; T. Yarita; Y. Aoyagi; Y. Tsuda; M. Yamazaki; A. Takatsu; K. Ishikawa; K. Chiba; K. Okamoto, Corresponding, Springer
Anal. Bioanal. Chem., Mar. 2007, [Reviewed]

Matrix certified reference materials for environmental monitoring from the National Metrology Institute of Japan (NMIJ)　　　　　　　　　　　　　　　
T. Yarita; A. Takatsu; K. Inagaki; M. Numata; K. Chiba; K. Okamoto, Lead, Springer
Accred. Qual. Assur., Mar. 2007, [Reviewed]

Development of wastewater certified reference material for determination of dioxins
Yoshio Iida; Mariko Murayama; Takashi Yarita; Yoshinori Takata; Takuzo Takasuga; Shozo Asada; Yasusuke Matsumoto; Yo-Ichi Ishibashi; Hiroyuki Igaki; Tohru Matsumura; Satoshi Tsuruta; Hidekazu Ohta; Akihiro Ono; Kazutoshi Kakita; Mamoru Sakata
BUNSEKI KAGAKU, Jan. 2007, [Reviewed]

ダイオキシン類分析用排水認証標準物質の開発　　　　　　　　　　　　　　　
飯田芳男; 村山真理子; 鎗田孝; 高田芳矩; 高菅卓三; 浅田正三; 松本保輔; 石橋耀一; 松村徹; 鶴田暁; 太田秀和; 小野昭紘; 柿田和俊; 坂田衛, 日本分析化学会
分析化学, Jan. 2007, [Reviewed]

Comparison of the behavior of C-13- and deuterium-labeled polycyclic aromatic hydrocarbons in analyses by isotope dilution mass spectrometry in combination with pressurized liquid extraction
Nobuyasu Itoh; Masahiko Numata; Yoshie Aoyagi; Takashi Yarita
JOURNAL OF CHROMATOGRAPHY A, Jan. 2007, [Reviewed]

Effect of residues remaining in the injection liner of a gas chromatograph on the quantification of polycyclic aromatic hydrocarbons by isotope dilution mass spectrometry using deuterium-labeled internal standards
Nobuyasu Itoh; Masahiko Numata; Yoshie Aoyagi; Takashi Yarita
JOURNAL OF CHROMATOGRAPHY A, Nov. 2006, [Reviewed]

Evaluation of supercritical fluid extraction for isotope dilution gas chromatography-mass spectrometric quantification of polychlorinated biphenyls in sediment
Takashi Yarita; Yoshie Aoyagi; Masahiko Numata; Akiko Takatsu
ANALYTICAL SCIENCES, Nov. 2006, [Reviewed]

Optimization of the do pant for the trace determination of polycyclic aromatic hydrocarbons by liquid chromatography/dopant-assisted atmospheric-pressure photoionization/mass spectrometry
Nobuyasu Itoh; Yoshie Aoyagi; Takashi Yarita
JOURNAL OF CHROMATOGRAPHY A, Oct. 2006, [Reviewed]

Study on gas chromatographic separation on the basis of the results of interlaboratory comparison examination and proficiency testing for determination of dioxins
Yoshio Iida; Mariko Murayama; Takashi Yarita; Shozo Asada; Yasusuke Matsumoto; Yoshinori Takata; Yo-ichi Ishibashi; Hiroyuki Igaki; Tohru Matsumura; Satoshi Tsuruta; Takuzo Takasuga; Akihiro Ono; Kazutoshi Kakita; Mamoru Sakata
BUNSEKI KAGAKU, Aug. 2006, [Reviewed]

ダイオキシン類定量に関する共同実験及び技能試験結果に基づくガスクロマトグラフ分離の検討　　　　　　　　　　　　　　　
飯田芳男; 村山真理子; 鎗田孝; 浅田正三; 松本保輔; 高田芳矩; 石橋耀一; 井垣浩侑; 松村徹; 鶴田暁; 高菅卓三; 小野昭紘; 柿田和俊; 坂田衛, 日本分析化学会
分析化学, Aug. 2006, [Reviewed]

Analytical sensitivity of arsenobetaine on atomic spectrometric analysis and the purity of synthetic arsenobetaine
T. Narukawa; T. Kuroiwa; T. Yarita; K. Chiba, Wiley
Appl. Organometal. Chem., Aug. 2006, [Reviewed]

Preparation and certification of new reference materials, combustion dust (JSAC 0511 and JSAC 0512) for determination of dioxins
Y Iida; M Murayama; T Yarita; S Asada; Y Matsumoto; Y Takata; YI Ishibashi; H Igaka; T Matsumura; T Hashiba; S Tsuruta; T Takasuga; A Ono; K Kakita; M Sayata
BUNSEKI KAGAKU, May 2006, [Reviewed]

ばいじん中ダイオキシン類分析用標準物質JSAC0511, JSAC0512の開発　　　　　　　　　　　　　　　
飯田芳男; 村山真理子; 鎗田孝; 浅田正三; 松本保輔; 高田芳矩; 石橋耀一; 井垣浩侑; 松村徹; 橋場常雄; 鶴田暁; 高菅卓三; 小野昭紘; 柿田和俊; 坂田衛, 日本分析化学会
分析化学, May 2006, [Reviewed]

Separation of polychlorinated biphenyls from mineral oil using alkylammonium ion-bonded silica stationary phases
M Numata; Y Aoyagi; Y Tsuda; T Yarita; A Takatsu
ANALYTICAL SCIENCES, May 2006, [Reviewed]

Determination of selenium in sediment by isotope dilution inductively coupled plasma mass spectrometry with an octopole reaction cell　　　　　　　　　　　　　　　
K. Inagaki; A. Takatsu; A. Nakama; S. Eyama; T. Yarita; K. Okamoto; K. Chiba, Springer
Anal. Bioanal. Chem., Apr. 2006, [Reviewed]

Development of a method for the determination of organic contaminants in biological tissue and its application to international comparisons
M Numata; T Yarita; Y Aoyagi; M Yamazaki; Y Yamamoto; A Takatsu; K Ishikawa
BUNSEKI KAGAKU, Jan. 2006, [Reviewed]

生物試料中の有機汚染物質分析法の開発および関連する国際比較への参加　　　　　　　　　　　　　　　
沼田雅彦; 鎗田孝; 青柳嘉枝; 山崎美佐子; 山本葉子; 高津章子; 石川啓一郎, 日本分析化学会
分析化学, Jan. 2006, [Reviewed]

Superheated water chromatography of low molecular weight polyethylene glycols with ultraviolet detection
T Yarita; Y Nakajima; K Shimada; S Kinugasa; M Shibukawa
ANALYTICAL SCIENCES, Aug. 2005, [Reviewed]

ダイオキシン類及びポリ塩化ビフェニル同族体分析用海域底質標準物質の開発
保母敏行; 村山真理子; 浅田正三; 井垣浩侑; 鎗田孝; 石橋耀一; 鶴田暁; 松本保輔; 柿田和俊; 小野昭紘; 坂田衛, The Japan Society for Analytical Chemistry has developed two new certified reference materials (CRMs) for dioxins : coplanar PCBs and 1∿10 chlorinated PCB homologues. A project team has been organized to prepare 2 kinds of marine sediment and to certify the concentration of dioxins and polychlorobiphenyls. An interlaboratory comparison test was performed by participants from 24 laboratories. In a statistical analysis, the z scores in robust method were applied to reject outliers, followed by the usual statistical procedure. The presented CRMs are expected to be useful for the quality assurance and quality control of dioxins analysis., 日本分析化学会
分析化学, Apr. 2005, [Reviewed]

Analytical method comparison for the accurate determination of PCBs in sediments　　　　　　　　　　　　　　　
M. Numata; T. Yarita; Y. Aoyagi; M. Yamazaki; A. Takatsu, Internal. Symp. Halogenated Persistent Org. Poll.
Organohalogen Compds., Sep. 2004

Evaluation of a microwave-assisted extraction technique for the determination of polychlorinated biphenyls and organochlorine pesticides in sediments
M Numata; T Yarita; Y Aoyagi; A Takatsu
ANALYTICAL SCIENCES, May 2004, [Reviewed]

International comparison on the determination of polychlorinated biphenyl congeners in sediment
T Yarita; A Nakama; K Yoshimura; A Takatsu; K Okamoto
BUNSEKI KAGAKU, Mar. 2004, [Reviewed]

底質中のポリクロロビフェニルの測定に関する国際比較　　　　　　　　　　　　　　　
鎗田孝; 仲間純子; 吉村和子; 高津章子; 岡本研作, Lead, 日本分析化学会
分析化学, Mar. 2004, [Reviewed]

Determination of polychlorinated biphenyls in sediment by isotope-dilution gas chromatography/mass spectrometry with pressurized fluid extraction
T Yarita; A Nakama; M Numata; Y Aoyagi; M Yamazaki; A Takatsu
BUNSEKI KAGAKU, Nov. 2003, [Reviewed]

加圧流体抽出法及び同位体希釈－ガスクロマトグラフィー／質量分析法による底質中ポリクロロビフェニルの定量　　　　　　　　　　　　　　　
鎗田孝; 仲間純子; 沼田雅彦; 青柳嘉枝; 山崎美佐子; 高津章子, Lead, 日本分析化学会
分析化学, Nov. 2003, [Reviewed]

超高温水クロマトグラフィー-水素炎イオン化検出法によるアルコール類の分析
中島良司; 鎗田孝; 渋川雅美, Corresponding, A method for the superheated water chromatography (SWC)-flame ionization detection (FID) of alcohols was developed. An FID system was connected to an SWC system by splitting the mobile phase of the SWC system and then introducing it into the FID system via a fused-silica capillary tube. The FID conditions (the position of the end of the capillary tube in the FID system, flow rate of hydrogen gas, and flow rate of helium makeup gas) were optimized so as to obtain a stable and sensitive detection of alcohols; the detection limits (S/N = 3) of methanol, ethanol, 1-propanol, 1-butanol, and 1-pentanol were in the range of 26～57 ng (as injected amounts into the SWC system) under the optimized conditions. The retention of alcohols in SWC decreased with an elevation in the column temperature as well as a decrease in the mobile-phase pressure. The retention mechanism was characterized using a thermodynamic theory that has been used for describing retention in conventional high-performance liquid chromatography. The application of the present method to determination of ethanol in wine samples was also demonstrated, in which the observed values were comparable to those obtained by gas chromatography/mass spectrometry., 日本分析化学会
分析化学, May 2003, [Reviewed]

Microwave-assisted steam distillation for simple determination of polychlorinated biphenyls and organochlorine pesticides in sediments
M Numata; T Yarita; Y Aoyagi; A Takatsu
ANALYTICAL CHEMISTRY, Mar. 2003, [Reviewed]

Superheated water chromatography of phenols using poly(styrene-divinylbenzene) packings as a stationary phase
T Yarita; R Nakajima; M Shibukawa
ANALYTICAL SCIENCES, Feb. 2003, [Reviewed]

Determination of ethanol in alcoholic beverages by high-performance liquid chromatography-flame ionization detection using pure water as mobile phase
T Yarita; R Nakajima; S Otsuka; T Ihara; A Takatsu; M Shibukawa
JOURNAL OF CHROMATOGRAPHY A, Nov. 2002, [Reviewed]

Microwave assisted steam distillation for the determination of PCBs in sediments　　　　　　　　　　　　　　　
M. Numata; T. Yarita; Y. Aoyagi; A. Takatsu, Internal. Symp. Halogenated Persistent Org. Poll.
Organohalogen Compds., 2002

Extraction behavior of accelerated solvent extraction of DDT metabolite from fish matrix　　　　　　　　　　　　　　　
T. Yarita, Jpn. Soc. Anal. Chem.
Anal. Sci., Dec. 2001, [Reviewed]

Carbon-13 NMR chemical shifts of dimeric model compounds of poly(propylene Oxide): a proof of existence of the (C-H)…O attraction
Y. Sasanuma; T. Iwata; Y. Kato; H. Kato; T. Yarita; S. Kinugasa; R. V. Law
J. Phy. Chem. A, Apr. 2001, [Reviewed]

Accelerated solvent extraction of organochlorine pollutants from fish matrix　　　　　　　　　　　　　　　
T. Yarita; A. Nomura, Lead
Proceeding of the 22nd International Symposium on Capillary Chromatography, Nov. 1999

Endcapping of octadecylsilyl-silica gels using supercritical fluid as reaction medium
T Yarita; T Ihara; Y Horimoto; A Nomura
ANALYTICAL SCIENCES, Apr. 1999, [Reviewed]

Development of separation and quantification methods for organic compounds using supercritical fluids
T Yarita
BUNSEKI KAGAKU, Aug. 1998, [Reviewed]

Liquid chromatography mass spectrometric analysis of phenylurea herbicides and their degradation products using an atmospheric pressure ionization interface
T Yarita; K Sugino; T Ihara; A Nomura
ANALYTICAL COMMUNICATIONS, Mar. 1998, [Reviewed]

On-line coupled supercritical fluid extraction and chromatography for the determination of thiolcarbamate herbicides in soil matrix
T Yarita; A Nomura; Y Horimoto; S Gonda
JOURNAL OF CHROMATOGRAPHY A, Oct. 1996, [Reviewed]

Supercritical fluid extraction of triazine herbicides from soil matrix
T. Yarita; Y. Horimoto; A. Nomura; S. Gonda, Lead, Vieweg+Teubner Verlag
Chromatographia, Oct. 1996, [Reviewed]

In situ silylation of silica-based packings using supercritical fluid as reaction medium
T Yarita; A Nomura; Y Horimoto
JOURNAL OF CHROMATOGRAPHY A, Feb. 1996, [Reviewed]

SUPERCRITICAL-FLUID CHROMATOGRAPHY OF FREE RESIN ACIDS ON AN ODS SILICA-GEL COLUMN
A YAMADA; Y EZAKI; K MATSUO; T YARITA; A NOMURA
JOURNAL OF CHROMATOGRAPHY A, Aug. 1995, [Reviewed]

Supercritical fluid chromatographic determination of tocopherols on an ODS- silica gel column　　　　　　　　　　　　　　　
T. Yarita; A. Nomura; K. Abe; Y. Takeshita, Lead, Elsevier
J. Chromatogr. A, Aug. 1995, [Reviewed]

DETERMINATION OF FREE FATTY-ACIDS BY SUPERCRITICAL-FLUID CHROMATOGRAPHY ON AN ODS SILICA-GEL COLUMN
A NOMURA; J YAMADA; T YARITA; Y SUDO; S KUDO; Y NISHIZAWA
ANALYTICAL SCIENCES, Jun. 1995, [Reviewed]

Supercritical-fluid chromatograms of fuel oils on ods-silica gel column using fluorescence, UV-absorption, and flame-ionization detectors
Akira Nomura; Joseph Yamada; Takashi Yarita; Tsuneaki Maeda, PRA Press
The Journal of Supercritical Fluids, 1995, [Reviewed]

DETERMINATION OF CHLORINATED PESTICIDES BY PACKED-COLUMN SUPERCRITICAL-FLUID CHROMATOGRAPHY ELECTRON-CAPTURE DETECTOR
T YARITA; A NOMURA; Y HORIMOTO; J YAMADA
MICROCHEMICAL JOURNAL, Apr. 1994, [Reviewed]

TYPE ANALYSIS OF CITRUS ESSENTIAL OILS BY MULTIDIMENSIONAL SUPERCRITICAL-FLUID CHROMATOGRAPHY GAS-CHROMATOGRAPHY
T YARITA; A NOMURA; Y HORIMOTO
ANALYTICAL SCIENCES, Feb. 1994, [Reviewed]

SUPERCRITICAL-FLUID CHROMATOGRAPHIC DETERMINATION OF CHOLESTEROL AND CHOLESTERYL ESTERS IN SERUM ON ODS-SILICA GEL COLUMN
A NOMURA; J YAMADA; A TAKATSU; Y HORIMOTO; T YARITA
ANALYTICAL CHEMISTRY, Aug. 1993, [Reviewed]

SUPERCRITICAL FLUID CHROMATOGRAPHIC DETERMINATION OF POLYCHLORINATED-BIPHENYLS ON AN OCTADECYLSILYL-SILICA GEL COLUMN USING AN ELECTRON-CAPTURE DETECTOR
T YARITA; Y HORIMOTO; J YAMADA; A NOMURA
ANALYTICAL SCIENCES, Dec. 1992, [Reviewed]

モリブデンとリン蒸気との反応　　　　　　　　　　　　　　　
藤代光雄; 富澤俊昭; 鎗田孝; 天野聡博; 佐々木義典, Corresponding, 電気化学協会
電気化学および工業物理化学, May 1990, [Reviewed]

国際基準に対応した認証標準物質の開発と技能試験の実施　　　　　　　　　　　　　　　
大竹貴光; 鎗田孝
日本農薬学会誌, Aug. 2021, [Reviewed], [Invited]
Corresponding

土壌・底質認証標準物質　　　　　　　　　　　　　　　
鎗田孝
ぶんせき, Oct. 2018, [Reviewed], [Invited]
Lead

有害物質分析のための環境・食品標準物質
鎗田孝; 成川知弘
ぶんせき, Nov. 2014, [Reviewed], [Invited]
Lead

環境分析用標準物質　　　　　　　　　　　　　　　
鎗田孝
ぶんせき, Sep. 2010, [Reviewed], [Invited]
Lead

同位体希釈-誘導結合プラズマ質量分析法による底質中微量元素の全量及び化学形態別分　　　　　　　　　　　　　　　
稲垣和三; 高津章子; 鎗田孝; 千葉光一; 岡本研作
分析化学, Apr. 2009, [Reviewed], [Invited]

ポリクロロビフェニル(PCB)分析用鉱物油標準物質の開発
沼田雅彦; 青柳嘉枝; 松尾真由美; 石川啓一郎; 羽成修康; 大塚聡子; 津田葉子; 鎗田孝; 岡本研作
環境と測定技術, Aug. 2008, [Invited]

Development of Environmental Analysis Methods Using Supercritical Fluid Extraction and Supercritical Fluid Chromatography
T. Yarita
Chromatography, Mar. 2008, [Reviewed], [Invited]
Lead

環境分析用標準物質の開発動向と産総研計量標準総合センターの取り組み
鎗田孝
産業と環境, Aug. 2005, [Invited]
Lead

底質中のPCBの精密分離・定量法
鎗田孝; 沼田雅彦
環境と測定技術, May 2004, [Invited]
Lead

"超"高速液体クロマトグラフィー－超高圧・高温下での分離
鎗田孝
化学と工業, Dec. 2003, [Reviewed], [Invited]
Lead

同位体希釈質量分析法による塩素系農薬の定量に関する国際比較　　　　　　　　　　　　　　　
井原俊英; 吉村和子; 大手洋子; 野村明; 大塚聡子; 鎗田孝; 鮑新努
The Chemical Times, Jul. 2002, [Invited]

環境分析における試料抽出法の比較
鎗田孝
化学と工業, Sep. 1998, [Reviewed], [Invited]
Lead

超臨界流体を利用した有機化合物の分離定量技術の高性能化に関する研究　　　　　　　　　　　　　　　
鎗田孝
分析化学, Aug. 1998, [Reviewed]

Application of supercritical fluid extraction and chromatography to the environmental analysis
T. Yarita; Y. Horimoto; A. Nomura
Journal of the National Institute of Materials and Chemical Research, Dec. 1997, [Reviewed]
Lead