Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, China; University of Chinese Academy of Science, Beijing 100049, China.
China College of Materials Science and Engineering, Qingdao University of Science and Technology, China.
J Chromatogr A. 2018 Jun 15;1554:123-127. doi: 10.1016/j.chroma.2018.04.017. Epub 2018 Apr 9.
A two dimensional ion chromatography (2D-IC) method was improved for the simultaneous determination of six cations and seven anions using one-valve switching after injection and conductivity detector. The trap conditions and valve-switch timing were optimized. The method has good accuracy and sensitivity for the simultaneous separation of inorganic anions and cations with a mean correlation coefficient of >0.99, repeatability of 0.60%-3.0% for eight replicates, reproducibility of 0.78%-3.1%, and spiked recovery rate of 88.7%-110%. The method was successfully applied to the analysis of inorganic anions and cations in four kinds of mineral water and can completely satisfy the demand of water quality monitoring.
建立了一种采用阀切换-二维离子色谱法同时测定六种阳离子和七种阴离子的分析方法。在进样后采用单通阀切换，以电导检测器进行检测。对淋洗条件和阀切换时间进行了优化。该方法用于同时分离无机阴离子和阳离子，具有良好的准确性和灵敏度，八种重复测定的平均相关系数>0.99，精密度为 0.60%-3.0%，重复性为 0.78%-3.1%，加标回收率为 88.7%-110%。该方法成功地应用于四种矿泉水样品中无机阴离子和阳离子的分析，完全满足水质监测的要求。
