The standard values for bromate content in mineral water are stipulated by the "Standards for Standardization of Foods, Additives, etc. (Not. 370, 1959)" in Article 1 of Food D (Standards for Composition of Soft Drinks). For mineral water to be disinfected or sterilized, the standard values are specified to be 0.01 mg bromate/L or less. The test method used is an ion chromatography post-column absorbance method.
In this study, bromate analysis in commercial mineral water was performed using LC-MS/MS. Good results were obtained using a SYPRON AX 1 ion-exchange column with LC-MS.