LIULi-jing,YANG Yan,ZHANGWen-ting.Ion Chromatography for Detection of Bromate, Chlorate and Perchlorate in Bottled Water[J].China Water & Wastewater,2023,39(6):134-138.
Ion Chromatography for Detection of Bromate, Chlorate and Perchlorate in Bottled Water
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第39卷
Number:
第6期
Page:
134-138
Column:
Date of publication:
2023-03-17
- Keywords:
- ion chromatography; bromate; chlorate; perchlorate; bottled water
- Abstract:
- This paper established a method of ion chromatography for simultaneous determination of bromate, chlorate and perchlorate in bottled water. The anion column was Ionpac AS20. 5-55 mmol/L KOH eluent was generated online, the flow rate was 1.00 mL/min, the column temperature was 30 ℃, the electric current of suppressor was 137 mA, and the sample volume was 500 μL. The sample was detected by a conductivity detector. The method was applied to detect 50 commercial bottles of drinking water. This method had good linear relation for bromate, chlorate and perchlorate in the range of 0.005-0.500 mg/L. The correlation coefficients were all greater than 0.999 0, and the precision was high (RSD<1.0%). The detection limits of bromate, chlorate and perchlorate were 1.5 μg/L, 1.0 μg/L and 1.5 μg/L, respectively, the quantitative limits were 5.0 μg/L, 3.3 μg/L and 5.0 μg/L, respectively, and the recovery rate were 87.0%-101.5%, 93.4%-118.0% and 90.9%-114.0%, respectively. The detection rates of bromate, chlorate and perchlorate in 50 bottles of drinking water were 40.0%, 66.0% and 14.0%, respectively, none of which exceeded the standard. This method is rapid, simple, sensitive and is suitable for simultaneous detection of bromate, chlorate and perchlorate in bottled water.
Last Update:
2023-03-17