电感耦合等离子体原子发射光谱法测定铝合金中铍
发布时间：2019-05-10 13:28
【摘要】：使用盐酸和硝酸溶解样品,采用基体匹配法绘制校准曲线消除基体效应的影响,选择灵敏度高且不受共存元素影响的谱线Be 313.107nm作为分析线,建立了电感耦合等离子体原子发射光谱法(ICP-AES)测定铝合金中铍质量分数为0.000 05%~0.000 5%的分析方法。方法中铍的检出限为0.000 001 6%(质量分数)。铍质量浓度在0.002~0.020μg/mL范围内,校准曲线的线性回归方程为I=8.894×106ρ+1.747×105,相关系数r=0.999 6。按照实验方法测定铝合金标准样品中铍,测定值与认定值一致,相对标准偏差(RSD,n=8)小于10%。
[Abstract]:The sample was dissolved by hydrochloric acid and nitric acid, the calibration curve was drawn by matrix matching method to eliminate the influence of matrix effect, and the spectral line Be 313.107nm with high sensitivity and not affected by coexisting elements was selected as the analysis line. A method for the determination of beryllium in aluminum alloy by inductively coupled plasma atomic emission spectrometry (ICP-AES) was established. The detection limit of beryllium is 0.000 (mass fraction). When the mass concentration of beryllium is in the range of 0.002 ~ 0.020 渭 g / mL, the linear regression equation of the calibration curve is I 鈮，
本文编号：2473684
[Abstract]:The sample was dissolved by hydrochloric acid and nitric acid, the calibration curve was drawn by matrix matching method to eliminate the influence of matrix effect, and the spectral line Be 313.107nm with high sensitivity and not affected by coexisting elements was selected as the analysis line. A method for the determination of beryllium in aluminum alloy by inductively coupled plasma atomic emission spectrometry (ICP-AES) was established. The detection limit of beryllium is 0.000 (mass fraction). When the mass concentration of beryllium is in the range of 0.002 ~ 0.020 渭 g / mL, the linear regression equation of the calibration curve is I 鈮，
本文编号：2473684
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