【摘要】 提出了用原子发射光谱同时测定抗肿瘤中药中微量Zn、Cu、Fe、Mn、Mo、Cr、Ni、Co和Pb的分析方法.对常用的两种样品预处理方法—干灰化法和湿消化法进行了试验和比较,采用有效的光谱载体NaF—KH₂PO₄,适宜的内标元素Bi和Pt,以及最佳的光谱测定条件.考查了基体组份的影响.回收率在87.0Pt—110％范围内,变动系数Fe为8.2％,其余元素均在6.4％以下.更多还原

【Abstract】 A new method, which is used for simultaneously determining microamount of Zn, Cu, Fe, Mn, Mo, Cr, Ni,Co and Pb in anti-tumour Chinese medicine by atomic emission spectrometry is presented. The sample pretreatments were investigated. The effects of spectroscopic carriers and matrix compositions on the emission intensity of elements were examined. The optimal conditions of spectre-graphic determination were established. The relative standard deviation for most element were less than 6.4%. The recoveries were 87.0-110%. The presented procedure has been used for determinaing 10 elements in practical samples with good results.更多还原