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.

Simultaneous Species Analysis of Arsenic, Selenium, Bromine, and Iodine in Bottled Drinking Water and Fruit Juice by High-Performance Liquid Chromatography-Inductively Coupled Plasma Mass Spectrometry

“…17 However, high (>levels of iodate 600 mg day -1 ) have been shown to cause ocular toxicity by damaging the retina. 18 At present, the studies of element species in water and food samples were mostly focused on the analysis of single element, [19][20][21][22][23][24] and there are few reports on simultaneous analysis of multielement species. The simultaneous analysis and determination of multi-element species can significantly improve the analysis efficiency and save testing costs.…”