ICP-OES法测定钛合金中的铬

Determination of Chromium in Titanium Alloys by Inductively Coupled Plasma-Optical Emission Spectrometry

研究了运用电感耦合等离子体原子发射光谱法（ICP-OES）测定钛合金中的铬元素，试验通过对钛合金的溶解方法、元素分析谱线的选择、酸度的影响、干扰情况消除等方面进行讨论，并对仪器测量条件进行优化。对标准样品进行加标回收试验，回收率在97％～103％之间。进行准确度和精密度试验，测量结果与认定值相符，相对标准偏差〈1．0％。

A method for determination of Chromium in Titanium by Inductively Coupled Plasma-Optical Emission Spectrometry （ICP-OES） was presented in this paper. The experiments studied dissolution methods, selection of analytical spectral lines of elements,acidity and interference conditions, and optimized instruments operating conditions.Under the optimum analytical conditions for a standard sample spiked recovery test, the recovery rate reached between 97% and 103%. For accuracy and precision test, the test results showed that the analysis resuhs were in conformity with certified values, and the relative standard deviation was less than 1.0%.