离子色谱法测定燃料电池汽车用燃料氢气中的痕量卤化物

An approach for the determination of trace amount halogenated compounds in hydrogen fuel of fuel cell application for road vehicles by ion chromatography

建立了一套采样及检测方法,采用去离子水为吸收液,将燃料电池汽车用燃料氢气中的痕量卤化物转化为卤离子,用离子色谱仪测定卤离子后计算得到氢燃料中卤化物的含量,该方法线性关系良好,相关系数大于0.999,检出限可达0.005μmol/mol,相对标准偏差不大于5%。

An approach was to collect the halogenated compounds that deionized water absorbed and then ion chromatography was used to determine the halogenate anion to which halogenated compounds was converted. The peak area were plotted versus the concentration. There was a linear correlation which was no less than 0.999. The detector limit was 0.005 μmol/mol and the RSD was no more than 5%.