FOOD SCIENCE ›› 2012, Vol. 33 ›› Issue (12): 219-222.doi: 10.7506/spkx1002-6630-201212044

• Analysis & Detection • Previous Articles     Next Articles

Simultaneous Determination of Bromate, Chlorite, Chlorate and Common Inorganic Anions in Drinking Water by Ion Chromatography

YANG Min,XIE Jing,YANG Shu-ke,CHEN Hai-yun,WANG Hong-bin*   

  1. (School of Chemistry and Biotechnology, Yunnan University of Nationalities, Kunming 650500, China)
  • Online:2012-06-25 Published:2012-07-27

Abstract: An analytical method for the simultaneous determination of bromate, chlorite, chlorate and common inorganic anions in drinking water was developed using large-volume direct injection and chemically suppressed ion chromatography (IC). An IonPac AS9-HC separation column and an IonPac AG9-HC protection column were used. The mobile phase was 12 mmol/L Na2CO3 at a flow rate of 1.0 mL/min. The injection volume was 100μL. Ten anions could be detected by the method within 18 min with average spike recovery of 93.0%~103.1% (n = 5). The correlation coefficients of calibration curve were 0.9993~0.9999. This method was sensitive, accurate and rapid. It has been applied to determine Kunming tap water and a variety of commercial drinking water with satisfying results.

Key words: ion chromatography, drinking water, bromate, inorganic anions

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