title: Simultaneous determination of pyridine-triphenylborane anti-fouling agent and its degradation products in paint-waste samples using capillary zone electrophoresis with field-amplified sample injection.
abstract: We proposed a capillary zone electrophoresis (CZE) procedure using field-amplified sample injection (FASI) for the simultaneous determination of pyridine-triphenylborane (PTPB) and its degradation products: diphenylborinic acid (DPB), phenylboronic acid (MPB), and phenol.  The LODs for PTPB, DPB, MPB, and phenol were, respectively, 0.85, 0.88, 44, and 28 μg L(-1).  The RSDs (n = 4) for the analytes listed above were in respective ranges of 6.2 - 14, 5.9 - 10, and 0.49 - 0.62% for the peak area, peak height, and migration time.  The compounds were extracted from paint-waste samples collected from shipyards using a siliga-gel column.  The extract was dissolved with acetonitrile containing 1% (v/v) pyridine.  The samples were then analyzed using CZE, revealing respective concentrations of 0.076 - 0.53, 0.015 - 0.36, 1.7 - 22, and 1.2 - 13 μg g(-1).  The proposed FASI-CZE method is a simple and promising procedure that is expected to be useful for the determination of PTPB and its degradation products in paint wastes.
authors.affiliation: Graduate School of Maritime Sciences, Kobe University, Japan.
authors.forename: Netnapit
authors.initials: N
authors.lastname: Kaewchuay
authors.forename: Keiichi
authors.initials: K
authors.lastname: Fukushi
authors.forename: Ai
authors.initials: A
authors.lastname: Tsuboi
authors.forename: Hideo
authors.initials: H
authors.lastname: Okamura
authors.forename: Keiitsu
authors.initials: K
authors.lastname: Saito
authors.forename: Takeshi
authors.initials: T
authors.lastname: Hirokawa
mesh_terms: D057219:Biofouling / Q000517:prevention & control; D001880:Boranes / Q000032:analysis*; D001896:Boron Compounds / Q000032:analysis*; D001897:Boronic Acids / Q000032:analysis*; D019075:Electrophoresis, Capillary; D007220:Industrial Waste / Q000032:analysis*; D010150:Paint / Q000032:analysis*; D010636:Phenols / Q000032:analysis*; D011725:Pyridines / Q000032:analysis*
chemical_list: D001880:Boranes; D001896:Boron Compounds; D001897:Boronic Acids; D007220:Industrial Waste; D010636:Phenols; D011725:Pyridines; C577849:pyridine triphenylborane; C044960:diphenylborinic acid; C010686:benzeneboronic acid