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Research paper : Standardization of environmental analysis methods of hazardous chemicals (S. Taniyasu et al.)−284−Synthesiology - English edition Vol.5 No.4 (2013) AuthorsSachi TaniyasuCompleted the doctor’s course at the Graduate School of Natural Science and Technology, Kanazawa University in March 2006. Joined the Potential Pollutants Group, Research Institute for Environmental Management Technology, AIST in April 2006. Engages in the development of the analysis method for persistent organic halogen compounds and the research on the environmental fate. In this paper, was in charge of the development of analysis method, ISO standardization, and JIS standardization of PFOS and PFOA.Nobuyasu HanariCompleted the doctor’s course in Agricultural Technology and Sciences at the Graduate School of Life and Environmental Sciences, University of Tsukuba in March 2001. Joined the Potential Pollutants Group, Research Institute for Environmental Management Technology, AIST in July 2004, and engaged in the development of the analysis method for dioxin analogs. Transferred to the Organic Analytical Chemistry Division, National Metrology Institute of Japan in October 2005. Engaged in the development of the national standard (NMIJ CRM) of organic reference material (particularly for persistent organic pollutants). Developed the reference materials essential for the operation of JCSS to ensure traceability, as well as general CRM. In this paper, was in charge of the development of potassium perfluorooctanesulfonate reference liquid (NMIJ CRM 4220-a).Yuichi HoriiCompleted the doctor’s course at the Graduate School of Science and Engineering, Ibaraki University in March 2006. Post-doctorate researcher at the New York State Department of Health (Wadsworth Center) for two years from May 2006. Joined the Center for Environmental Science in Saitama in October 2008, and engages in the environmental monitoring and fate study of persistent organic pollutants. Current interest is the natural production of dioxin in kaolin clay. In this research, was in charge of the development of the analysis method for individual NP isomers.Nobuyoshi YamashitaCompleted the doctor’s course in Environmental Chemistry at the United Graduate School of Agricultural Sciences, Ehime University in 1992. Joined the National Institute for Resources and Environment, Agency for Industrial Science and Technology (current AIST) in 1992. Has been involved in the development of new technologies and their applications in the environmental analytic chemistry field. Has supervised various tests and researches on international [28]E. Sinclair, S. Taniyasu, N. Yamashita and K. Kannan: Perfluorooctanoic acid and perfluorooctane sulfonate in Michigan and New York waters, Organohalogen Compd., 66, 4019-4023 (2004).[29]K. S. Guruge, S. Taniyasu, N. Yamashita, S. Wijeratna, K. M. Mohotti, H. R. Seneviratne, K. Kannan, N. Yamanaka and S. Miyazaki: Perfluorinated organic compounds in human blood serum and seminal plasma: a study of urban and rural tea worker populations in Sri Lanka, J. Environ Monit., 7 (4), 371-377 (2005).[30]S. Taniyasu, K. Kannan, L. W. Y. Yeung, K. Y. Kwok, P. K. S. Lam and N. Yamashita: Analysis of trifluoroacetic acid and other short-chain perfluorinated acids (C2-C4) in precipitation by liquid chromatography-tandem mass spectrometry: comparison to patterns of long-chain perfluorinated acids (C5-C18), Anal. Chim. Acta, 619 (2), 221-230 (2008).[31]S. P. J. van Leeuwen, A. Karrman, B. van Bavel, J. de Boer and G. Lindstrom: Struggle for quality in determination of perfluorinated contaminants in environmental and human samples, Environ. Sci. Technol., 40 (24), 7854-7860 (2006).[32]ISO18857-2:2009, Water quality -- Determination of selected alkylphenols -- Part 2: Gas chromatographic- mass spectrometric determination of alkylphenols, their ethoxylates and bisphenol A in non-filtered samples following solid-phase extraction and derivatisation (2009).[33]ISO Guide 34:2009, General requirements for the competence of reference material producers (2009).[34]ISO/IEC 17025:2005, General requirements for the competence of testing and calibration laboratories (2005).[35]M. J. T. Milton and T. J. Quinn: Primary methods for the measurement of amount of substance, Metrologia, 38 (4), 289-296 (2001).[36]Y. Shimizu, Y. Ohte, X. Bao, S. Otsuka, Y. Kitamaki, K. Ishikawa, T. Ihara and K. Kato: Development of certified reference materials of high-purity volatile organic compounds: purity assay by the freezing-point depression method, Accred. Qual. Assur., 13 (7), 389-396 (2008).[37]N. Hanari, K. Ishikawa, Y. Shimizu, R. Iwasawa, S. Otsuka and T. Yarita: Certified reference material for determination of p-n-nonylphenol and p-n-heptylphenol from the National Metrology Institute of Japan, Organohalogen Compd., 70, 1349-1352 (2008).[38]N. Hanari, K. Ishikawa, Y. Shimizu, R. Iwasawa, S. Otsuka, N. Fujiki, X. Bao, T. Yarita, K. Kato and N. Yamashita: Certified reference materials for determination of phthalates and alkylphenols from the National Metrology Institute of Japan, Organohalogen Compd., 71, 1605-1609 (2009).[39]N. Hanari, K. Ishikawa, S. Otsuka, K. Higuchi, R. Iwasawa and T. Yarita: Certified calibration solution reference material for the determination of benzo[a]pyrene from the National Metrology Institute of Japan (NMIJ), Polycyclic Aromat. Compd., 28 (4-5), 302-319 (2008).[40]N. Hanari, N. Itoh, R. Iwasawa, M. Numata, S. Taniyasu and N. Yamashita: Purity evaluation of potassium perfluoroalkylsulfonate using differential scanning calorimetry, Organohalogen Compd., 72, 271-274 (2010).[41]ISO 6142:2001, Gas analysis -- Preparation of calibration gas mixtures -- Gravimetric method (2001).[42]National Metrology Institute of Japan, AIST: NMIJ Certified Reference Materials (NMIJ CRM), http://www.nmij.jp/service/C/ (in Japanese).[43]ISO 22719:2008, Water quality -- Determination of total alkalinity in sea water using high precision potentiometric titration (2008).

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