title: Analysis of bromate in drinking water using liquid chromatography-tandem mass spectrometry without sample pretreatment.
abstract: An analytical method for determining bromate in drinking water was developed using liquid chromatography-tandem mass spectrometry (LC-MS/MS). The (18)O-enriched bromate was used as an internal standard. The limit of quantification (LOQ) of bromate was 0.2 µg/L. The peak of bromate was separated from those of coexisting ions (i.e., chloride, nitrate and sulfate). The relative and absolute recoveries of bromate in two drinking water samples and in a synthesized ion solution (100 mg/L chloride, 10 mg N/L nitrate, and 100 mg/L sulfate) were 99-105 and 94-105%, respectively. Bromate concentrations in 11 drinking water samples determined by LC-MS/MS were <0.2-2.3 µg/L. The results of the present study indicated that the proposed method was suitable for determining bromate concentrations in drinking water without sample pretreatment.
authors.affiliation: Water Management Section, Department of Environmental Health, National Institute of Public Health, Wako, Saitama, Japan. kosaka@niph.go.jp
authors.forename: Koji
authors.initials: K
authors.lastname: Kosaka
authors.forename: Mari
authors.initials: M
authors.lastname: Asami
authors.forename: Kanako
authors.initials: K
authors.lastname: Takei
authors.forename: Michihiro
authors.initials: M
authors.lastname: Akiba
mesh_terms: D001959:Bromates / Q000032:analysis*; D002853:Chromatography, Liquid / Q000295:instrumentation / Q000379:methods*; D060766:Drinking Water / Q000032:analysis* / Q000737:chemistry; D053719:Tandem Mass Spectrometry / Q000295:instrumentation / Q000379:methods*; D013997:Time Factors; D014881:Water Supply / Q000032:analysis* / Q000592:standards
chemical_list: D001959:Bromates; D060766:Drinking Water