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目的探索测定饮用水中溴酸根的方法和色谱条件。方法利用抑制电导离子色谱法(IC),采用DionexICS1500离子色谱仪,以流速1.0mL/min的20.00mmol/L KOH为淋洗液,对饮用水中的痕量溴酸盐的测定方法和色谱条件进行实验分析。结果 BrO3-的最低检出浓度为0.6μg/L,线性范围为8～40mL/L,相关系数r=0.996。结论离子色谱法在上述色谱条件下,检测饮用水中的溴酸根准确度较高。
Objective To explore the determination of bromate in drinking water methods and chromatographic conditions. Methods The determination of trace bromate in drinking water and the chromatographic conditions were carried out by using suppressed ion conductance chromatography (IC), DionexICS1500 ion chromatograph and 20.00 mmol / L KOH with a flow rate of 1.0 mL / min as eluent Conduct experimental analysis. Results The minimum detectable concentration of BrO3- was 0.6μg / L with a linear range of 8 ~ 40mL / L with a correlation coefficient of 0.996. Conclusion Ion chromatography in the above chromatographic conditions, the detection of bromate in drinking water higher accuracy.