电感祸合等离子体发射光谱法对铝合金中低含量钒元素的测定探究
Determination of low content Vanadium in aluminum alloy by inductively coupled plasma emission spectrometry
采用电感藕合等离子体原子发射光谱法测定铝合金中0.01%-0.15%的微量钒含量。对仪器参数蠕动泵泵夹优化、雾化气压力优化、RF功率优化、动泵转速及辅助气流量进行优化。选择稀王水溶液20m1溶解试样(0.1000g )，通过谱线谱图、强度及浓度对比，选择测定钒含量的分析谱线为292.402nm。分别配制钒元素含量为0.0050%, 0.0100%, 0.0300%, 0.100%, 0.300%的五个标准溶液进行分析曲线的绘制，进行曲线校准，在此曲线下对4个样品各测定6次，测定值的相对标准偏差均不大于0.80%，用标准加入法测得回收率在89.0% ～104.2%之间。应用此方法分析含有微量钒的铝合金标准物质，测定结果与标准值相符。
The content of vanadium in aluminum alloy was determined by inductively coupled plasma atomic emission spectrometry. The instrument parameters of peristaltic pump clip optimization, atomizing gas pressure optimization, RF power optimization, moving pump speed and auxiliary gas flow optimization. The sample (0.1000g) was dissolved in 20m1 of dilute aqua reticulum solution. The analytical line for vanadium content determination was 292.402nm by comparison of spectral diagram, intensity and concentration. Five standard solutions with vanadium content of 0.0050%, 0.0100%, 0.0300%, 0.100% and 0.300% were prepared respectively to draw analysis curves and carry out curve calibration. The four samples were measured 6 times under this curve, and the relative standard deviation of measured values was no more than 0.80%. The recoveries were 89.0%一104.2% by standard addition method. The method is applied to analyze the reference material of aluminum alloy containing trace vanadium, and the measured results are in good agreement with the standard values.
刘海生;
西北铝业有限责任公司 甘肃 定西 748111;
inductively coupled plasma atomic emission spectrometry Aluminum alloy Trace vanadium content
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