摘要
采用美国Dionex公司ICS-1100型离子色谱仪,应用IonPac AS22型阴离子分析柱,4.5mmol/L Na2CO3+0.8mmol/L NaHCO3淋洗液等度淋洗,在ASRS300(4mm)阴离子抑制器后加装CRD300二氧化碳去除装置,温控电导检测器,进样量300μL,通过计算峰面积测定饮用天然矿泉水中溴酸盐。校正曲线系数r=0.9998,检出限为4.54μg/L,RSD为0.42%~1.90%,加标回收率在96.2%~101.3%之间。
This method is applied with USA Dionex company ICS-1100 ion chromatographyand Dionex IonPac AS22 anion analysis column. The 4.5mmol/L Na2CO3＋0.8mmoVL NaHCO3 was used for isocratic elution. A^er the process of ASRS300 （4mm） anion suppressor, CRD300 carbon dioxide removal device andTemperature control conductivity detector were installed with the injection volume of 300μL. Bromate was Determined by calculating the peak areain drinking natural mineral water. In calibration curve coefficient r equals to 0.9998, the detection limit 4.54μg/L, RSD 0.42% -1.90% and the recoveries between 96.2% - 101.3%.
出处
《饮料工业》
2014年第8期24-26,共3页
Beverage Industry
关键词
溴酸盐
饮用天然矿泉水
离子色谱
bromate
natural mineral for drinking
ion chromatography
