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2006•Chinese Journal of Spectroscopy LaboratoryRequires access

Determination of Seven Trace Elements in Tea Samples by Atomic Absorption Spectrometry

Peng Xiang

Open publisher page 2 citations

Abstract

The tea sample was digested by HNO_3-H_2O_2.Five trace elements including Mn,Fe,Zn,Cu in the tea samples from nongnan city,jiangxi province were direct analyzed by flame atomic absorption spectrometry and another two elements of Pb,Cd was analyzed by graphite furnace atomic absorption spectrometry.The results show that the tea included lots of trace elements which is necessary for people,the content of Pb,Cd are much lower than national standard.The recoveries of these microelements are between 93.70% to 102.40% and relative standard deviation less than 10%.The method is simple,rapid,the results are accuracy and satisfactory.

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What this paper is about

The tea sample was digested by HNO_3-H_2O_2.Five trace elements including Mn,Fe,Zn,Cu in the tea samples from nongnan city,jiangxi province were direct analyzed by flame atomic absorption spectrometry and another two elements of Pb,Cd was analyzed by graphite furnace atomic absorption spectrometry.The results show that the tea included lots of trace elements which is necessary for people,the content of Pb,Cd are much lower than national standard.The recoveries of these microelements are between 93.70% to 102.40% and relative standard deviation less than 10%.The method is simple,rapid,the results are accuracy and satisfactory.

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OpenAlex reports 2 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

The tea sample was digested by HNO_3-H_2O_2.Five trace elements including Mn,Fe,Zn,Cu in the tea samples from nongnan city,jiangxi province were direct analyzed by flame atomic absorption spectrometry and another two elements of Pb,Cd was analyzed by graphite furnace atomic absorption spectrometry.The results show that the tea included lots of trace elements which is necessary for people,the content of Pb,Cd are much lower than national standard.The recoveries of these microelements are between 93.70% to 102.40% and relative standard deviation less than 10%.The method is simple,rapid,the results are accuracy and satisfactory.

Key concepts: Graphite furnace atomic absorption, Relative standard deviation, Atomic absorption spectroscopy, Chemistry, Mass spectrometry, Analytical Chemistry (journal), National standard, TRACE (psycholinguistics)

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