Microsoft Word 斯兰兰-二校 718

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1 6 2 Vol. 6 No Journal of Food Safety and Quality Feb., ~2013 * 斯兰兰 (, ) 摘要 : 目的,, 方法, 9 775, 结果, 2.06%,,, 结论,, 关键词 : ; ; Monitoring and analysis of the contents of total mercury in food in Tibet area 2012~2013 SI Lan-Lan * (Tibet Autonomous Region Center for Disease Control and Prevention, Lhasa , China) ABSTRACT: Objective To investigate the total mercury level in food in Tibet Autonomous Region, and put forward consumption warning, and to provide a scientific basis for market supervision. Methods Total mercury in food were measured by automatic mercury analyzer. There was no need of wet digestion or complex pretreatments of sample, and automatic direct injection. A total of 775 samples of 9 categories were randomly collected from Lhasa, Nyingchi, Lhoka, Shigatse and Ngari Prefectures. The total mercury levels in these samples were detected and analyzed. Results The contamination level of total mercury in food was low, and the unqualification rate of total mercury was only 2.06%, mainly caused by mercury pollution incident, the rest of the food was accord with national standard. The potential health risk from mercury exposure was low. Conclusion The contamination levels of total mercury in common food of Tibet Autonomous Region are generally low. The total mercury level in most food is under the limit requirements of national standards. However, food safety supervision for imported food should be further strengthened. KEY WORDS: Tibet; food; total mercury 1 引言 (Hg),,,,,, * 通讯作者 :,, xzcdcsll@163.com *Corresponding author: SI Lan-Lan, Bachelor, Supervising Technician, Tibet Autonomous Region Center for Disease Control and Prevention, Lhasa , China. xzcdcsll@163.com

2 1 : 2012~ [1],, [2],,, [3],,,, 90% 100%,,, [4] (ICP-AES) (ICP-MS) (GB/T ) [5],,,,,,,,, [6],,,,,,, [7],,,,,,,,,,,,, 0.01 ng, 材料与方法 2. 1 材料方法仪器 Milestone DMA-80, ; (Thermal Decomposition)- (Amalgamation)- (Atomic Absorption Spectrophotometry) 试剂汞保存液 0.05 g (GR ), 3 ml (GR ) 100 ml : 1.0 mg/ml ( ) 1.0 ng/ml 2.0 ng/ml 3.0 ng/ml 4.0 ng/ml 5.0 ng/ml 6.0 ng/ml 7.0 ng/ml 8.0 ng/ml 9.0 ng/ml 10.0 ng/ml, 2.3 检验方法样品预处理,, 仪器条件 (Max start T)250, (purge time P)60 s, (Amalgamator heating time H )12 s, (Signal recording time R )30 s; : 4, 1 10 s, 200 ; min; min, ; min, 650, 1.5 min, 样品测定, ~ g ( h,, ),,

3 720 6 (Hight)0.003,, 2.4 质量控制, : GBW08508-, 3 结果与分析 3.1 线性范围及检出限 1.0 ng 2.0 ng 3.0 ng 4.0 ng 5.0 ng 6.0 ng 7.0 ng 8.0 ng 9.0 ng 10.0 ng 6, R> , 0.15 μg/kg 3.2 样品分析 775, 讨论 : (CAA) (AFS) (DSPM) [8],,, 0.01 ng, (GB/T ),, : 9 775, GB [9] GB [10], 2.06%, ( 8.7%) [11] ; ( 2.0%, ) [12] 3,, ( 60%, 70%) [13],,, [14],, ( ),,,,, [15],,,,, 2009 ( 36~280 μg/kg) [16] ( 12.7~68 μg/kg) [17] Table 1 表 1 各类食品总汞含量检测结果 The detection results of total mercury contents of all types of food ( ) (µg/kg ) (µg/kg) (µg/kg) % < < < < <

4 1 : 2012~ [18] 2011 [19] :,,,,,,,,, 2012, :,,,,,, 参考文献 [1],. [J]., 2007, 3(1): 133. Tang LX, Ding YM. Determination of mercury in cosmetics by cold atomic fluorescence spectrometry [J]. Chin Test Technol, 2007, 3(1): 133. [2] Hamada R, Osame M. Minamata disease and other mercury syndromes [M]. 3rd Edition, New York: Lewis Publishers, 1996: [3] Rothschild RFN, Duffy LK. Mercury concentrationsin muscle, brain and bone of Western Alaskan waterfowl [J]. Sci Total Environ, 2005, 349(1): [4]. [J]., 2008, 34(1): Hu YH, Domestic and international review of mercury pollution distribution status research [J]. Environ Pro Sci, 2008, 34(1): [5] GB/T [S] GB/T Methods of food hygienic analysis physical and chemical section [S] [6] GB/T [S] GB/T Determination of total mercury and organic mercury in foods [S] [7],,. [J]., 2008, 20(4): Yang J, Wang ZT, Yang DJ. Research progress of total mercury in food detection method [J] Chin J Food Hyg, 2008, 20(4): [8],. [J]., 2007, 6(17): Lui R, Liang CS. Application of method of directly determining mercury in food [J]. Chin J Health Lab Technol, 2007, 6(17): [9] GB [S] GB Contaminants in food Limited [S] [10] GB [S] GB Contaminants in food Limited [S] [11],, [J]., 2013, 11(23): Qin YY, Fang F, Deng JS. Analysis of monitoring status of lead, cadmium and mercury in food in Guilin from 2007 to 2011 [J]. Chin J Health Lab Technol, 2013, 11(23): [12],,,. [J]., 2011, 11(6): Wang XW, Guo YQ,Wang F, et al. Report of heavy metal pollution on food of Pingdingshan [J]. Studies Trace Elements Health, 2011, 11(6): [13], [J]., 2013, 10(19): Wu ZT, Wei FX. Test report of 5 elements in 2011~2012 in Huanjiang County of food contaminants [J]. Appl Prev Med, 2013, 10(19): [14]. [M]. 5. :, Wu K. Nutrition and food hygiene [M]. The Fifth Edition. Beijing: People's Medical Publishing House, [15], [J]., 2011, 26(2): 125. Mei YQ, Liu TJ. Survey on mercury content in commercial food in zigong city of 2010 [J]. J Occup Health Prev, 2011, 26(2): 125. [16],,, [J]., 2011, 23(1): Xu Y, Yang LJ, Li CS, et al. Monitoring and analysis on the chemical contaminants of food products in Dalian in 2009 [J]. Chin J Food Hyg, 2011, 23(1): [17]. [J]., 2010, 10(2): Zhu XH. Survey of contamination of foods with mercury in Jiangmen city [J]. China Trop Med, 2010, 10(2): [18],, [J]., 2011, 7(28):

5 722 6 Tan HT, Zhou H, Jian BY. Survey on the mercury contamination in food in Jiangxi of 2010 [J]. Studies Trace Elements Health, 2011, 7(28): [19], [J]., 2011, 27(6): Wang L, Wang SH. Survey on Mercury content in Commercial Food in Shijiazhuang City of 2011 [J]. J Med Pest Contr, 2011, 27(6): 作者简介 ( 责任编辑 : 白洪健 ) 斯兰兰, 本科, 主管技师, 主要研究方向为理化检验 xzcdcsll@163.com 饮料酒质量与品质安全专题征稿函,,,, ,,, ; ;,,,,,, ,,, 投稿方式 : : tougao@chinafoodj.com 食品安全质量检测学报编辑部

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