Jiao Qiang Chen Yan jing. DETERMINATION OF SeO32-.CrO42- BY ION CHROMATOGRAPHY. [J]. Journal of University of Jinan(Social Science Edition) (1):80-82(1994)
Jiao Qiang Chen Yan jing. DETERMINATION OF SeO32-.CrO42- BY ION CHROMATOGRAPHY. [J]. Journal of University of Jinan(Social Science Edition) (1):80-82(1994)DOI:
DETERMINATION OF SeO32-.CrO42- BY ION CHROMATOGRAPHY
摘要
本文较系统地研究了离子色谱法对SeO
3
2-
.CrO
4
2-
的分析实验条件
选择紫外检测器(波长254nm)以7.5mmolNa
2
CO
3
和2.0mmolNaoH为双组分淋洗液
在此条件下
对SeO
3
2-
5ppm
CrO
4
2-
10ppm混合标准液进行分析
标准偏差、变异系数均在仪器允许范围内
且线性关系较好
检出限Seo
3
2-
0.031ppmCrO
4
2-
为0.074ppm以标准加入法测得回收率为Seo
3
2-
.98%.CrO
4
2-
101%.
Abstract
Ion chromatography was applied to the determination of SeO32-. CrO42-. with 7. 5 mmol Na2CO3 and 2. 0mmol NaOH solution as an eluant. UV. detection at 254nm was selected. The standard deviation of this method was suitable. The collection ratio of SeO32-was 98%. CrO42- was 101%.