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2008•Journal of Zhejiang University(Science Edition)Requires access

Determination of elements in edible traditional chinese medicine

Tang Mi-rao

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Abstract

To develop an ICP-MS method for the determination of 15 elements V,Cr,Mn,Co,Ni,Cu,Zn,Ge,As,Se,Sr,Mo,Cd,Hg,Pb. in the edible Traditional Chinese Medicine, the samples were pretreated by microwave-digestion, then introduced to ICP-MS and AAS to determine the fifteen microelements and K,Ca,Mg,Fe. The linear correlation factor for the elements is high, R0.999(n=11). The recoveries of the elements ranged mostly from 90.30% to 104.05%. This method had low detection limits, broad linear range,high accuracy and precision.

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What this paper is about

To develop an ICP-MS method for the determination of 15 elements V,Cr,Mn,Co,Ni,Cu,Zn,Ge,As,Se,Sr,Mo,Cd,Hg,Pb. in the edible Traditional Chinese Medicine, the samples were pretreated by microwave-digestion, then introduced to ICP-MS and AAS to determine the fifteen microelements and K,Ca,Mg,Fe. The linear correlation factor for the elements is high, R0.999(n=11). The recoveries of the elements ranged mostly from 90.30% to 104.05%. This method had low detection limits, broad linear range,high accuracy and precision.

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Available abstract

To develop an ICP-MS method for the determination of 15 elements V,Cr,Mn,Co,Ni,Cu,Zn,Ge,As,Se,Sr,Mo,Cd,Hg,Pb. in the edible Traditional Chinese Medicine, the samples were pretreated by microwave-digestion, then introduced to ICP-MS and AAS to determine the fifteen microelements and K,Ca,Mg,Fe. The linear correlation factor for the elements is high, R0.999(n=11). The recoveries of the elements ranged mostly from 90.30% to 104.05%. This method had low detection limits, broad linear range,high accuracy and precision.

Key concepts: Microwave digestion, Linear correlation, Linear range, Chemistry, Linear relationship, Analytical Chemistry (journal), Detection limit, Chromatography

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