OCCUPATION AND HEALTH ›› 2026, Vol. 42 ›› Issue (10): 1348-1352.

• Treatise • Previous Articles     Next Articles

Simultaneous determination of 4 conventional anions and 5 disinfection byproducts in drinking water by online ultrafiltration-ion chromatography with conductivity detection

JIANG Yi1, ZHAO Yan1, YANG Zhiguo1, ZHU Huating2()   

  1. 1 Yizheng Municipal Center for Disease Control and PreventionYizhengJiangsu 211400, China
    2 Suzhou Industrial Park Center for Disease Control and PreventionSuzhouJiangsu 215000, China
  • Received:2025-07-25 Revised:2025-08-05 Online:2026-05-15 Published:2026-06-02
  • Contact: ZHU Huating
  • About author:ZHU Huating,E-mail:1003412478@qq.com

Abstract:

Objective To enhance the efficiency of routine drinking water monitoring and address the issue of inconsistent detection conditions requiring separate tests for anions and disinfection byproducts using ion chromatography,an online ultrafiltration-ion chromatography conductivity method was developed for the simultaneous determination of fluoride,chloride,nitrate,sulfate,dichloroacetic acid,trichloroacetic acid,chlorate,chlorite,and bromate in drinking water. Methods Drinking water was directly injected after online ultrafiltration.By employing optimized chromatographic analysis parameters,nine analytes were simultaneously determined using ion chromatography with conductivity detection,and quantified via the standard calibration curve method. Results The assay showed a good linear relationship within the corresponding mass concentration ranges of all analytes,with correlation coefficients(r) ranging from 0.999 2 to 0.999 9,detection limits of 0.007 to 0.198 μg/L,quantification limits of 0.024 to 0.660 μg/L,relative standard deviation(RSD) of 0.23% to 4.00%,and spiked recovery rates of 92.7% to 108.8%.The measured results of the 9 analytes in mixed reference samples were within the allowable ranges of certified values. Conclusion The developed method,incorporating online ultrafiltration,is simple to operate,exhibits high separation efficiency,accuracy,and low detection limits,making it suitable for rapid simultaneous detection of conventional anions and disinfection byproducts in drinking water.

Key words: Online ultrafiltration, Ion chromatography, Disinfection byproducts, Anions, Drinking water

CLC Number: