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2006•Chinese Journal of Analysis LaboratoryRequires access

Determination of trace elements in mongolian medicines new-II by ICP-AES with microwave digestion and analysis of ratios of Ca to Mg and Cu to Zn

E Er-Deng-sang, SI Qindalai

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Abstract

A method for the determination of 15 kinds of trace elements(Ca、 Mg、 Fe、 Zn、 Ni、 Mn、 Cu and so on) in the Mongolian medicines new-Ⅱ by ICP-AES with microwave digestion has been proposed,and the ratios of Ca to Mg and Cu to Zn have been analyzed primarily.The results indicate that Mongolian medicines new-Ⅱ contains many kinds of trace elements,and the contents of beneficial micro amounts of elements for people are relatively high.The order is: CaMgFeMnZnNiCu.The contents of harmful micro amounts of elements(Cd、 Pb、 Ag) for prople are relatively low.The ratios of Ca to Mg and Cu to Zn are 4.176 and 0.6077,respectively.Recoveries are between 97.5% and 105.5%,relative standard deviation(RSD) is not more than 2.7%,and detection limit is not more than 0.008 μg/mL.The satisfactory results are obtained.

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What this paper is about

A method for the determination of 15 kinds of trace elements(Ca、 Mg、 Fe、 Zn、 Ni、 Mn、 Cu and so on) in the Mongolian medicines new-Ⅱ by ICP-AES with microwave digestion has been proposed,and the ratios of Ca to Mg and Cu to Zn have been analyzed primarily.The results indicate that Mongolian medicines new-Ⅱ contains many kinds of trace elements,and the contents of beneficial micro amounts of elements for people are relatively high.The order is: CaMgFeMnZnNiCu.The contents of harmful micro amounts of elements(Cd、 Pb、 Ag) for prople are relatively low.The ratios of Ca to Mg and Cu to Zn are 4.176 and 0.6077,respectively.Recoveries are between 97.5% and 105.5%,relative standard deviation(RSD) is not more than 2.7%,and detection limit is not more than 0.008 μg/mL.The satisfactory results are obtained.

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Available abstract

A method for the determination of 15 kinds of trace elements(Ca、 Mg、 Fe、 Zn、 Ni、 Mn、 Cu and so on) in the Mongolian medicines new-Ⅱ by ICP-AES with microwave digestion has been proposed,and the ratios of Ca to Mg and Cu to Zn have been analyzed primarily.The results indicate that Mongolian medicines new-Ⅱ contains many kinds of trace elements,and the contents of beneficial micro amounts of elements for people are relatively high.The order is: CaMgFeMnZnNiCu.The contents of harmful micro amounts of elements(Cd、 Pb、 Ag) for prople are relatively low.The ratios of Ca to Mg and Cu to Zn are 4.176 and 0.6077,respectively.Recoveries are between 97.5% and 105.5%,relative standard deviation(RSD) is not more than 2.7%,and detection limit is not more than 0.008 μg/mL.The satisfactory results are obtained.

Key concepts: Chemistry, Inductively coupled plasma atomic emission spectroscopy, Microwave digestion, Detection limit, Relative standard deviation, Zinc, Digestion (alchemy), TRACE (psycholinguistics)

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Determination of trace elements in mongolian medicines new-II by ICP-AES with microwave digestion and analysis of ratios of Ca to Mg and Cu to Zn — Research Paper | ScholarLens