Proficiency testing by the National Metrology Institute of Japan for quantification of pesticide residues in grain samples from 2012 to 2018
Otake, Takamitsu, Yarita, Takashi, Aoyagi, Yoshie, Hanari, Nobuyasu, Takatsu, Akiko
Published in Journal of Pesticide Science (20.08.2019)
Published in Journal of Pesticide Science (20.08.2019)
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Journal Article
Optimization of the dopant for the trace determination of polycyclic aromatic hydrocarbons by liquid chromatography/dopant-assisted atmospheric-pressure photoionization/mass spectrometry
Itoh, Nobuyasu, Aoyagi, Yoshie, Yarita, Takashi
Published in Journal of Chromatography A (27.10.2006)
Published in Journal of Chromatography A (27.10.2006)
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Journal Article
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
Otake, Takamitsu, Yarita, Takashi, Aoyagi, Yoshie, Numata, Masahiko, Takatsu, Akiko
Published in Analytical and bioanalytical chemistry (01.11.2014)
Published in Analytical and bioanalytical chemistry (01.11.2014)
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Proficiency testing for determination of pesticide residues in soybean: Comparison of assigned values from participants׳ results and isotope-dilution mass spectrometric determination
Yarita, Takashi, Otake, Takamitsu, Aoyagi, Yoshie, Kuroiwa, Takayoshi, Numata, Masahiko, Takatsu, Akiko
Published in Talanta (Oxford) (01.01.2015)
Published in Talanta (Oxford) (01.01.2015)
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Journal Article
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
Yarita, Takashi, Otake, Takamitsu, Aoyagi, Yoshie, Takasaka, Noriko, Suzuki, Tatsuya, Watanabe, Takaho
Published in Journal of AOAC International (01.07.2018)
Published in Journal of AOAC International (01.07.2018)
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Journal Article
Difference between Consensus Value of Participants’ Results and Isotope-Dilution Mass Spectrometric Results in Proficiency Testing for Pesticide Residues in Husked Wheat
YARITA, Takashi, OTAKE, Takamitsu, AOYAGI, Yoshie, NUMATA, Masahiko, TAKATSU, Akiko
Published in Analytical Sciences (2016)
Published in Analytical Sciences (2016)
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Journal Article
Comparison of low-level polycyclic aromatic hydrocarbons in sediment revealed by Soxhlet extraction, microwave-assisted extraction, and pressurized liquid extraction
Itoh, Nobuyasu, Numata, Masahiko, Aoyagi, Yoshie, Yarita, Takashi
Published in Analytica chimica acta (31.03.2008)
Published in Analytica chimica acta (31.03.2008)
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Journal Article
Development of Certified Reference Material for Quantification of Two Pesticides in Brown Rice
Otake, Takamitsu, Itoh, Nobuyasu, Aoyagi, Yoshie, Matsuo, Mayumi, Hanari, Nobuyasu, Otsuka, Satoko, Yarita, Takashi
Published in Journal of agricultural and food chemistry (23.09.2009)
Published in Journal of agricultural and food chemistry (23.09.2009)
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Journal Article
Development of Green Onion and Cabbage Certified Reference Materials for Quantification of Organophosphorus and Pyrethroid Pesticides
Otake, Takamitsu, Yarita, Takashi, Aoyagi, Yoshie, Kuroda, Youko, Numata, Masahiko, Iwata, Hitoshi, Mizukoshi, Kazushi, Nakamura, Munetomo, Watai, Masatoshi, Mitsuda, Hitoshi, Fujikawa, Takashi, Ota, Hidekazu
Published in Journal of agricultural and food chemistry (24.08.2011)
Published in Journal of agricultural and food chemistry (24.08.2011)
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Journal Article
Certified reference material for quantification of polycyclic aromatic hydrocarbons in sediment from the National Metrology Institute of Japan
Itoh, Nobuyasu, Aoyagi, Yoshie, Takatsu, Akiko, Yarita, Takashi
Published in Analytical and bioanalytical chemistry (01.04.2009)
Published in Analytical and bioanalytical chemistry (01.04.2009)
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Journal Article
Certified reference material for quantification of polycyclic aromatic hydrocarbons and toxic elements in tunnel dust (NMIJ CRM 7308-a) from the National Metrology Institute of Japan
Itoh, Nobuyasu, Inagaki, Kazumi, Narukawa, Tomohiro, Aoyagi, Yoshie, Narushima, Izumi, Koguchi, Masae, Numata, Masahiko
Published in Analytical and bioanalytical chemistry (01.11.2011)
Published in Analytical and bioanalytical chemistry (01.11.2011)
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Journal Article
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
Itoh, Nobuyasu, Numata, Masahiko, Aoyagi, Yoshie, Yarita, Takashi
Published in Journal of Chromatography A (17.11.2006)
Published in Journal of Chromatography A (17.11.2006)
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Journal Article
Certified calibration solution reference material for the determination of perfluorooctane sulfonate from the National Metrology Institute of Japan (NMIJ)
Hanari, Nobuyasu, Itoh, Nobuyasu, Ishikawa, Keiichiro, Iwasawa, Ryoko, Aoyagi, Yoshie, Yarita, Takashi, Numata, Masahiko
Published in International journal of environmental analytical chemistry (01.05.2013)
Published in International journal of environmental analytical chemistry (01.05.2013)
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Journal Article
Sediment certified reference materials for the determination of polychlorinated biphenyls and organochlorine pesticides from the National Metrology Institute of Japan (NMIJ)
Numata, Masahiko, Yarita, Takashi, Aoyagi, Yoshie, Tsuda, Yoko, Yamazaki, Misako, Takatsu, Akiko, Ishikawa, Keiichiro, Chiba, Koichi, Okamaoto, Kensaku
Published in Analytical and bioanalytical chemistry (01.04.2007)
Published in Analytical and bioanalytical chemistry (01.04.2007)
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