微波消解-ICP-MS测定中成药胶囊中15种金属元素

Determination of 15 Metals in Traditional Chinese Medicine and Capsules by Microwave Digestion and ICP-MS

中文关键词:  微波消解  电感耦合等离子体质谱法  金属  中成药  胶囊

英文关键词:microwave digestion  ICP-MS  metals  traditional Chinese medicine  capsules

中文摘要:

      采用硝酸-过氧化氢体系微波消解，以钪、铟作内标，电感耦合等离子体质谱法（ICP-MS）同时测定几种中成药及空心胶囊中的15种金属元素，各元素方法检出限在0.000 7~0.047 μg/g之间，相对标准偏差小于10%，标准物质加标回收率在82.3%~116%之间.方法简便快捷，灵敏度高，重现性好，是测定中成药及其空心胶囊中多元素高效、准确的方法.

英文摘要:

      15 metals in traditional Chinese medicine and capsules were determined simultaneously by microwave digestion and inductively coupled plasma mass spectrometry(ICP-MS).Scandium and Indium were used as the internal standards. The results showed that the detection limits of the 15 metals were between 0.000 7~0.047 μg/g and all the relative standard deviations were less than 10%. The spiked recovery rates were between 82.3%~116%. The method can be effectively applied to the determination of aquatic products because of rapidness, high sensitivity and good reproducibility.