锂-铟合金中铟含量的分析方法研究

Study on Analytical Method of Indium Content in Li-In Alloy

在常量铟的分析方法中,络合滴定是目前应用最广泛的一种,其次是原子吸收光谱法和及谱法。但是目前文献没有针对锂铟合金样品中铟含量的分析方法,在用络合滴定方法分析时,由于锂的干扰,指示剂变色不敏锐。而原子吸收光谱法却没有铟空心阴极灯。根据现有条件我们采用ICP5110-OES电感耦合等离子体发射光谱法检测锂铟合金中铟含量。该方法通过两个实验室反复试验,发现斯派克的ICP不能胜任锂铟合金中铟含量常量分析,安捷伦5110-OES ICP可以胜任该样品分析。

Among the analysis methods for constant indium,complexometric titration is currently the most widely used method,followed by atomic absorption spectroscopy and spectroscopy.However,there is currently no analysis method for the indium content in lithium indium alloy samples in the literature.When using the complexometric titration method for analysis,the color change of the indicator is not sensitive due to the interference of lithium.However,atomic absorption spectroscopy does not have an indium hollow cathode lamp.Based on the existing conditions,we use ICP5110-OES inductively coupled plasma emission spectroscopy to detect the indium content in lithium indium alloys.This method was repeatedly tested in two laboratories and found that Spark's ICP is not capable of performing constant analysis of indium content in lithium indium alloys,while Agilent 5110-OES ICP is capable of analyzing this sample.