title: Simultaneous LC/MS analysis of hexachlorobenzene and pentachlorophenol by atmospheric pressure chemical ionization (APCI) and photoionization (APPI) methods.
abstract: The simultaneous LC/MS analyses of hexachlorobenzene (HCB) and pentachlorophenol (PCP), two dioxin precursors were studied by both atmospheric pressure chemical ionization (APCI) and atmospheric pressure photoionization mass spectrometry (APPI/MS). The optimum LC/MS conditions of the simultaneous analysis were determined for these two compounds with different polarity. Ionization by APPI was found to be more effective than by APCI, and is thus a better ionization method for analysis of the two compounds. Using LC/APPI/MS we can achieve the simultaneous analysis of HCB and PCP at ppb levels.
authors.affiliation: Center for Nano Materials and Technology, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1294, Japan.
authors.forename: Issey
authors.initials: I
authors.lastname: Osaka
authors.forename: Arifumi
authors.initials: A
authors.lastname: Yoshimoto
authors.forename: Kazuyoshi
authors.initials: K
authors.lastname: Nozaki
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Moriwaki
authors.forename: Hideya
authors.initials: H
authors.lastname: Kawasaki
authors.forename: Ryuichi
authors.initials: R
authors.lastname: Arakawa
mesh_terms: D001274:Atmospheric Pressure; D002138:Calibration; D002853:Chromatography, Liquid; D006581:Hexachlorobenzene / Q000032:analysis* / Q000737:chemistry*; D013058:Mass Spectrometry; D010416:Pentachlorophenol / Q000032:analysis* / Q000737:chemistry*; D055668:Photochemical Processes; D013997:Time Factors
chemical_list: D006581:Hexachlorobenzene; D010416:Pentachlorophenol