title: A rapid and sensitive analysis of diphenylarsinic acid in water by gas chromatography/mass spectrometry.
abstract: A rapid and sensitive analytical method using pentafluorothiophenol (PFTP) derivatization was applied to detect diphenylarsinic acid (DPAA) in water. In this study, the optimum derivatization conditions, such as acid concentration, reaction time and reaction temperature, were investigated to develop a suitable procedure for DPAA determination. After extracting the derivatives into benzene, the determination was carried out by gas chromatography/mass spectrometry (GC/MS) with selected ion monitoring (SIM). The detection limit of the method was 9.4 microg/l, and the overall recoveries obtained from real environmental samples were 88.9 - 104.7% and coefficient variations were 5.1 - 13.9%.
authors.affiliation: Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto, 3-1-100 Tsukide, Kumamoto 862-8502, Japan.
authors.forename: Kyoung Suk
authors.initials: KS
authors.lastname: Kim
authors.forename: Ryota
authors.initials: R
authors.lastname: Shinohara
authors.forename: Koji
authors.initials: K
authors.lastname: Arizono
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Kanetsuna
authors.forename: Minoru
authors.initials: M
authors.lastname: Koga
mesh_terms: D001152:Arsenicals / Q000032:analysis*; D005618:Fresh Water / Q000032:analysis; D008401:Gas Chromatography-Mass Spectrometry; D007202:Indicators and Reagents; D013696:Temperature; D014881:Water Supply / Q000032:analysis*
chemical_list: D001152:Arsenicals; D007202:Indicators and Reagents; C493087:diphenylarsinic acid