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Author:

Ren Ting (Ren Ting.) | Zhao Li-jiao (Zhao Li-jiao.) (Scholars:赵丽娇) | Cao Jun (Cao Jun.) | Zhong Ru-gang (Zhong Ru-gang.) (Scholars:钟儒刚)

Indexed by:

EI Scopus SCIE PKU CSCD

Abstract:

The contents of lead, cadmium and chromium were determined for 22 kinds of foods including cereals, vegetables, beverage, sea foods and dairy products by using high resolution continuum source graphite furnace atomic absorption spectrometry (HR-CS GFAAS). The methods for sample preparation, digestion, and quantitative analysis were established, by which satisfying analytical precision (RSD=1. 3%similar to 4. 9%) and recovery (95. 1%similar to 104. 6%) were achieved. The results indicated that the contents of lead in tea leaves and chromium in shellfish were much higher than those in the other foods; the contents of cadmium in millet, leek and shellfish were relatively higher than the others. This work established reliable methods for quantitative analysis of heavy metals in foods, which provided experimental references for the constitution of food quality and safety standards. Meanwhile, the distributions of heavy metals in foods given by this work can be expected to enhance the consumers' consciousness of food safety.

Keyword:

Foods Quantitative analysis Continuum source graphite furnace atomic absorption spectrometry Heavy metals

Author Community:

  • [ 1 ] [Ren Ting]Beijing Univ Technol, Coll Life Sci & Bioengn, Beijing 100124, Peoples R China
  • [ 2 ] [Zhao Li-jiao]Beijing Univ Technol, Coll Life Sci & Bioengn, Beijing 100124, Peoples R China
  • [ 3 ] [Cao Jun]Beijing Univ Technol, Coll Life Sci & Bioengn, Beijing 100124, Peoples R China
  • [ 4 ] [Zhong Ru-gang]Beijing Univ Technol, Coll Life Sci & Bioengn, Beijing 100124, Peoples R China

Reprint Author's Address:

  • 赵丽娇

    [Zhao Li-jiao]Beijing Univ Technol, Coll Life Sci & Bioengn, Beijing 100124, Peoples R China

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Source :

SPECTROSCOPY AND SPECTRAL ANALYSIS

ISSN: 1000-0593

Year: 2012

Issue: 9

Volume: 32

Page: 2566-2571

0 . 7 0 0

JCR@2022

ESI Discipline: CHEMISTRY;

JCR Journal Grade:4

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count: 9

SCOPUS Cited Count: 11

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 5

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