电感耦合等离子体发射光谱法测定氯化钾中铁、镍、铬量

Inductively Coupled Plasma Atomic Emission Spectrometry for the Determination of the Iron,Nickel and Chromium Contents in Potassium Chloride

采用基体匹配标准曲线,选择适宜的分析线进行了背景校正,直接用ICP-AES法测定氯化钾中铁、镍、铬的含量,方法相对标准偏差均小于8.8%,回收率在90%~106%之间。

In the paper, the inductively coupled plasma atomic emission spectrometry method by which the matrix was matched to the calibration curve was proposed for the direct determination of iron, nickel and chromium in potassium chloride. The optimal analytical wavelength was selected and the background was corrected. The recov ery rate was 90% to 106% .The RSD was below 8.8%.