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2008•Shenyang Yaoke Daxue xuebaoRequires access

Determination of trace elements in Xiefuzhuyu by flame atomic absorption spectrometry

Chunjie Zhao

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Abstract

Objective To determine the amount of trace elements(Ca,Mg,Zn,Cu,Fe,Mn,Cr,Ni) in Xiefuzhuyu(traditional Chinese medicines) by flame atomic absorption spectrometry(FAAS).Methods FAAS was used to determine the contents of Ca,Mg,Zn,Cu,Fe,Mn,Cr and Ni in the Xiefuzhuyu.The samples were digested with HNO3-HClO4(V∶V=4∶1) at 140 ℃ under normal pressure;meanwhile,the effects of solution medium on the results were studied.Results Analytical results of Ca,Mg,Zn,Cu,Fe,Mn,Cr and Ni in Xiefuzhuyu were 3 546.80×10-4%,27.80×10-4%,32.10×10-4%,7.80×10-4%,1 445.6×10-4%,15.20×10-4%,10.30×10-4%,5.20×10-4%,respectively.The results showed that the recovery of additional standard is 95.3%-104.0%,the precision(RSD,n=9) was 2.2%-4.6%.Conclusions The analytical method was established for the trace elements in Xiefuzhuyu.The method is accurate,rapid and simple.

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What this paper is about

Objective To determine the amount of trace elements(Ca,Mg,Zn,Cu,Fe,Mn,Cr,Ni) in Xiefuzhuyu(traditional Chinese medicines) by flame atomic absorption spectrometry(FAAS).Methods FAAS was used to determine the contents of Ca,Mg,Zn,Cu,Fe,Mn,Cr and Ni in the Xiefuzhuyu.The samples were digested with HNO3-HClO4(V∶V=4∶1) at 140 ℃ under normal pressure;meanwhile,the effects of solution medium on the results were studied.Results Analytical results of Ca,Mg,Zn,Cu,Fe,Mn,Cr and Ni in Xiefuzhuyu were 3 546.80×10-4%,27.80×10-4%,32.10×10-4%,7.80×10-4%,1 445.6×10-4%,15.20×10-4%,10.30×10-4%,5.20×10-4%,respectively.The results showed that the recovery of additional standard is 95.3%-104.0%,the precision(RSD,n=9) was 2.2%-4.6%.Conclusions The analytical method was established for the trace elements in Xiefuzhuyu.The method is accurate,rapid and simple.

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Available abstract

Objective To determine the amount of trace elements(Ca,Mg,Zn,Cu,Fe,Mn,Cr,Ni) in Xiefuzhuyu(traditional Chinese medicines) by flame atomic absorption spectrometry(FAAS).Methods FAAS was used to determine the contents of Ca,Mg,Zn,Cu,Fe,Mn,Cr and Ni in the Xiefuzhuyu.The samples were digested with HNO3-HClO4(V∶V=4∶1) at 140 ℃ under normal pressure;meanwhile,the effects of solution medium on the results were studied.Results Analytical results of Ca,Mg,Zn,Cu,Fe,Mn,Cr and Ni in Xiefuzhuyu were 3 546.80×10-4%,27.80×10-4%,32.10×10-4%,7.80×10-4%,1 445.6×10-4%,15.20×10-4%,10.30×10-4%,5.20×10-4%,respectively.The results showed that the recovery of additional standard is 95.3%-104.0%,the precision(RSD,n=9) was 2.2%-4.6%.Conclusions The analytical method was established for the trace elements in Xiefuzhuyu.The method is accurate,rapid and simple.

Key concepts: Atomic absorption spectroscopy, Chemistry, Analytical Chemistry (journal), TRACE (psycholinguistics), Chromatography, Philosophy, Quantum mechanics, Linguistics

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