Journal of Food, Agriculture and Environment
Vol 11,
Issue 3&4,2013
Online ISSN: 1459-0263
Print ISSN: 1459-0255
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Survey of heavy metal residues in raw milk in Tangshan City of China
Author(s):
Xueyin Qu 1+,
Baiqin Zheng 2+, Nan Zheng 1*, Jiaqi Wang 1, Xiaomin Xu 1, Rongwei Han 3, Yunpeng Zhen 1, Songli Li 1Recieved Date: 2013-05-28, Accepted Date: 2013-10-24
Abstract:The aim of this study was to assess the level of lead, chromium, cadmium, mercury and arsenic in 192 raw milk samples collected from Tangshan City of China using inductively coupled plasma-mass spectrometry (ICP-MS). The detectable rate and concentration ranges of the five metals as follows: lead 3.1%, 31.15-39.60 µg kg-1; chromium 65.6%, 15.50-87.50 µg kg-1; cadmium 3.1%, 8.30-74.40 µg kg-1; mercury 1.6%, 0.00-9.50 µg kg-1; arsenic 3.1%, 74.70-117.00 µg kg-1. The occurrence of lead, chromium, mercury and arsenic in all positive samples was below China’s national legal limit of lead 50 µg kg-1, chromium 300 µg kg-1, mercury 10 µg kg-1 and arsenic 50 µg kg-1. However, the lead content in positive milk samples exceeds the European Union (EU) and Codex Alimentarius Commission (CAC)’s legal limit of 20 µg kg-1.
Keywords:Heavy metal,
raw milk, ICP-MS, ChinaJournal: Journal of Food, Agriculture and Environment
Year: 2013
Volume: 11
Issue: 3&4
Category: Food and Health
Pages: 259-262
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