Kang Wei-jun, Ren Qing-yu, Ji Xue-ping, Sun Han-wen
College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China.
Guang Pu Xue Yu Guang Pu Fen Xi. 2002 Dec;22(6):1037-9.
A new microsample-pulse method is described for the determination of copper, iron and zinc by ion exchange microcolumn preconcentration-derivative flame atomic absorption spectrometry. The optimum conditions concerning the sensitivity were studied. The method was applied to the determination of Cu, Fe and Zn in tapwater with sensitivity being 0.29, 0.59 and 0.06 microgram.L-1, respectively. The recovery range and the relative standard deviation of the proposed method were 91.13%-101.34% and 1.95%-4.28%, respectively. The detection limits were found to be 1.28, 5.85 and 0.68 micrograms.L-1, respectively. The method is sensitive, accurate, precise and rapid.
介绍了一种新的微量样品脉冲法，用于通过离子交换微柱预富集-导数火焰原子吸收光谱法测定铜、铁和锌。研究了有关灵敏度的最佳条件。该方法应用于自来水中铜、铁和锌的测定，灵敏度分别为0.29、0.59和0.06微克·升-1。该方法的回收率范围和相对标准偏差分别为91.13%-101.34%和1.95%-4.28%。检测限分别为1.28、5.85和0.68微克·升-1。该方法灵敏、准确、精密且快速。
