摘要
建立了测定饮用水中砷、硒的氢化物发生-原子吸收法,探讨了盐酸、硼氢化钠溶液的浓度以及样品还原处理对测定结果的影响,测定结果的相对标准偏差(n=7)小于3％,回收率为89.1％～110.7％。测定砷的线性范围为0～40μg/L(r=0.9990);测定硒的线性范围为0～50μg/L(r=0.9990)。砷、硒的检出限分别为1.06、0.78μg/L。
The determination of Se and As in the drinking water by hydride generation-atomic absorption spectrometry was established. The influence of the hydrochloric acid and sodium borohvdride concentration as well as the sample reducing on the determination result were studied. The relative standard deviations of the method is less than 3% and the recovery is 89.1%~110.1% . The linear range of detection for As is 0-40μg/L( r =0. 9990). The linear range of detection for Se is 0~50μg/L. The detection limits of As and Se are 1. 06μg/L and 0. 78μg/L. respectively.
出处
《化学分析计量》
CAS
2003年第2期27-28,共2页
Chemical Analysis And Meterage
关键词
饮用水
氢化物发生
原子吸收法
硒
砷
测定
水质分析
hydride generation, atomic absorption spectrometry, Se, As, determination
