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2009•Journal of Xuchang UniversityRequires access

Determination of Trace Elements in Chinese Herbal Medicine by Microwave Digestion-AAS

Huafeng Fu

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Abstract

The trace elements in six immue Chinese berbal medicine of Liuweidihuangwan are determined by air-acetylene flame atomic absorption spectrometry(FAAS) after samples are prepared by microwave digestion.The microwave digestion reagents and the microwave digestion conditions are discussed in detail.The recovery of ten metal elements are as following: Zn 120.5%,Fe 106.8%,Mn 118.5%,Co 99.9%,Ni 95.5%,Cu 100.4%,Cr 106.1%,Ca 101.5%,Mg 90.5% and K 120.0%.Relative standard deviation(RSD) of determination results is between 0.17%~7.87%.This method is simple,accurate and stable.

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What this paper is about

The trace elements in six immue Chinese berbal medicine of Liuweidihuangwan are determined by air-acetylene flame atomic absorption spectrometry(FAAS) after samples are prepared by microwave digestion.The microwave digestion reagents and the microwave digestion conditions are discussed in detail.The recovery of ten metal elements are as following: Zn 120.5%,Fe 106.8%,Mn 118.5%,Co 99.9%,Ni 95.5%,Cu 100.4%,Cr 106.1%,Ca 101.5%,Mg 90.5% and K 120.0%.Relative standard deviation(RSD) of determination results is between 0.17%~7.87%.This method is simple,accurate and stable.

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Available abstract

The trace elements in six immue Chinese berbal medicine of Liuweidihuangwan are determined by air-acetylene flame atomic absorption spectrometry(FAAS) after samples are prepared by microwave digestion.The microwave digestion reagents and the microwave digestion conditions are discussed in detail.The recovery of ten metal elements are as following: Zn 120.5%,Fe 106.8%,Mn 118.5%,Co 99.9%,Ni 95.5%,Cu 100.4%,Cr 106.1%,Ca 101.5%,Mg 90.5% and K 120.0%.Relative standard deviation(RSD) of determination results is between 0.17%~7.87%.This method is simple,accurate and stable.

Key concepts: Microwave digestion, Digestion (alchemy), Atomic absorption spectroscopy, Reagent, Chemistry, Microwave, Metal, Relative standard deviation

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