Determination of Heavy Metals in Vegetables by Microwave Digestion/Inductively Coupled Plasma Atomic Emission Spectroscopy

doi:10.7506/spkx1002-6630-201020059

FOOD SCIENCE ›› 2010, Vol. 31 ›› Issue (20): 290-292.doi: 10.7506/spkx1002-6630-201020059

• Analysis & Detection • Previous Articles Next Articles

Determination of Heavy Metals in Vegetables by Microwave Digestion/Inductively Coupled Plasma Atomic Emission Spectroscopy

CONG Qiao，CAI Yan-Rong

Liaoning Key Laboratory of Applied Chemistry, College of Chemistry and Chemical Engineering,
Bohai University, Jinzhou 121013, China

Received:2010-01-11 Online:2010-10-25 Published:2010-12-29
Contact: CONG Qiao E-mail:cqiao79@yahoo.com.cn

Abstract

Abstract:

A microwave digestion/inductively coupled plasma atomic emission spectroscopy (ICP-AES) method was presented for the determinations of Zn, Pb, Cu and Cd in vegetables. The detection limits of the method for the elements varied from 0.006 to 0.018 mg/L, with relative standard deviations between 0.17% and1.76%, and the spike recovery ratios for them were in the range from 99.00% to 102.95%. The actual applications demonstrate that this method is sensitive, and that the leaf vegetables can adsorb more heavy metals than fruit vegetables such as eggplant.

Key words: ICP-AES, microwave digestion, vegetable, heavy metal

CLC Number:

TS207.51

CONG Qiao，CAI Yan-Rong. Determination of Heavy Metals in Vegetables by Microwave Digestion/Inductively Coupled Plasma Atomic Emission Spectroscopy[J]. FOOD SCIENCE, 2010, 31(20): 290-292.

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Determination of Heavy Metals in Vegetables by Microwave Digestion/Inductively Coupled Plasma Atomic Emission Spectroscopy

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