High performance ion chromatography (HPIC) with suppressed conductivity detector was developed for the analysis of bromate content in foods in this study. Bromate was extracted from foods using deionized water. Two sets of IonPac AS9-HC (4 mm)+IonPac AG9-HC (4 mm) columns were connected and used for the clean up and separation, while 9 mM Na2CO3 solution was used as mobile phase in HPIC. It was a simple, quick and solvent-saving method for the analysis, the recoveries of bromate spiked in wheat flour and bread (50 ppb), cookies (200 ppb) were all above 90%. All of 11 various cookies and potato chips purchased in Taipei were not detected for bromate by this method.
High performance ion chromatography (HPIC) with suppressed conductivity detector was developed for the analysis of bromate content in foods in this study. Bromate was extracted from foods using deionized water. Two sets of IonPac AS9-HC (4 mm)+IonPac AG9-HC (4 mm) columns were connected and used for the clean up and separation, while 9 mM Na2CO3 solution was used as mobile phase in HPIC. It was a simple, quick and solvent-saving method for the analysis, the recoveries of bromate spiked in wheat flour and bread (50 ppb), cookies (200 ppb) were all above 90%. All of 11 various cookies and potato chips purchased in Taipei were not detected for bromate by this method.
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