摘要
氢化物—无色散原子荧光法用于纯铜及其化合物中砷、锑的测度。氢化物反应最佳介质为1.5mol/L盐酸溶液。对砷、锑的检出限分别为0.15ppb和0.26ppb,相对标准偏差分别为4.06％和5.29％,共存离子干扰予以消除,获得准确和可靠的结果。
Hydride generation-nondispersive atomic flouresence spectrometric method has been developed for the determination of As and Sb in pure Copper and its compounds. 1.5mol/ L HCl was selected as the best medium for hydride reaction. The detection limits are 0.15ppb (for As) and 0.26ppb (for Sb) and the relative standard deviations are 4.06％(for As) and 5.29％(for Sb), respectively. Interferences caused by diveres ions have been carefully examined. The results obtained are accurate and reliable.
关键词
氢化物
原子荧光法
铜
砷
锑
Atomic fluoresence spectromettry
Cu, As and sb
Hydride.
