摘要
采用微波消解样品 ,连续流动进样 -氢化物发生原子吸收分光光度法测定中成药中的砷 ,氢化物发生 -原子荧光光谱法测定中成药中的汞。对消解温度、消解试剂用量、消解程序设计、消解时间等消解条件进行研究 ;在测定汞时对微波消解样品后样品的处理方法进行比较 ;在优化实验条件下 ,砷的回收率为 10 0 8%～ 110 6 %之间 ,汞的回收率为 97 4 %～117 4 %之间。该法具有快速、简便、损失低、污染少、试剂利用率高等优点。
This experiment established a method of digesting samples with microwave sample preparation system ,then using continual flow injection-atom absorption spectrometry to determine trace As and using hydride generation atomic fluorescence spectrometry to determine trace Hg in Traditional Chinese Patent Medicines The digesting temperature, digesting solvent volume,digesting procedure and time were studied The treatments were comparde after the samples were digested for determination of Hg Under the optimum comditions,the recovery of As was between 100 8%～114 3% and the recovery of Hg was between 97 4%～117 4% The method was simple ,rapid,low loss,little pollution and high reagent utilizatiom ratio
出处
《现代仪器》
2004年第4期12-15,共4页
Modern Instruments
关键词
中成药
砷
汞
微波消解
氢化物发生原子吸收分光光度法
测定
Traditiomal Chinese patent medicines Microwave digestion Hydride generation Arsenic Mercury
