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首页> 外文期刊>Journal of the Chilean Chemical Society >COMPARISON OF DRY ASHING, WET ASHING AND MICROWAVE DIGESTION FOR DETERMINATION OF TRACE ELEMENTS IN PERIOSTRACUM SERPENTIS AND PERIOSTRACUM CICADAE BY ICP-AES
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COMPARISON OF DRY ASHING, WET ASHING AND MICROWAVE DIGESTION FOR DETERMINATION OF TRACE ELEMENTS IN PERIOSTRACUM SERPENTIS AND PERIOSTRACUM CICADAE BY ICP-AES

机译：ICP-AES比较干灰分，湿灰分和微波消解法测定蛇皮中和蛇皮中微量元素的含量

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摘要

The work was to demonstrate a repaid, precise and accurate determination method for ten trace elements (Al, Cd, Cr, Cu, Fe, Mg, Mn, Ni, Se and Zn) in periostracum serpentis (PS) and periostracum cicadae (PC) by inductively coupled plasma atomic emission spectrometry (ICP-AES). In order to evaluate the best digestion method, three different sample digestion methods including dry ashing, wet ashing and microwave digestion procedures were compared in this study. Method validation was carried out through the generation of calibration curves with multi-element standard solutions and a standard addition method by using standard reference material (GBW 07604-Poplar leaves). The results revealed the microwave digestion procedures were the best sample digestion method because of dry ashing and wet ashing procedures without any advantages in terms of digestion efficiency than the microwave digestion procedures. Trace element contents in PS and PC samples presented a wide variability from the test results, and ten trace element contents in PC were found to be higher than in PS. Determination of trace elements by ICP-AES after microwave digestion was more sensitive and precise, which can be used for quality control and analysis of pharmacological effect in various ecdyses of some animal samples.
机译：这项工作是要证明一种补偿，精确和准确的测定蛇骨骨（（PS）和蝉骨蝉（PC）中十种微量元素（Al，Cd，Cr，Cu，Fe，Mg，Mn，Ni，Se和Zn）的测定方法通过电感耦合等离子体原子发射光谱法（ICP-AES）。为了评估最佳的消解方法，本研究比较了三种不同的样品消解方法，包括干灰，湿灰和微波消解程序。通过使用多元素标准溶液和标准加入物（GBW 07604-白杨叶）的标准添加方法生成校准曲线来进行方法验证。结果表明，微波消解程序是最佳的样品消解方法，因为干灰化和湿灰化程序与微波消解程序相比，在消解效率方面没有任何优势。 PS和PC样品中的痕量元素含量与测试结果存在较大差异，PC中的十种微量元素含量高于PS中的痕量元素含量。微波消解后通过ICP-AES测定微量元素更为灵敏，准确，可用于一些动物样品中各种蜕皮的质量控制和药理作用分析。

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