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《Chinese Journal of Analytieal Chemistry》 1996-01
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Study on Some Problems of Mercury in Milk Powder by Cold Atomic-Unchromatic Dispersion Atomic Fluorescence Spectrophotometry

Feng Jiali;Pan Zhenqiu; Liu Hongwang (Hunan Provincial Sanitary and Anti-epidemic Station, Changsha 410005)  
A theory about reduction reaction of mercury by cold atomic-unchromatic disper sion atomic fluorescence spectrophotometry is proposed. After a sample containing mercury has been digested with nitric acid. the mercury reacts with a nitrogen oxide (NxOy ) come from products of digestion to form a Hg (NxOy ), complex compound. Added tin protochloride liquor (SnCl2 ). the complex compound is decomposed, and Hg2+ is reducted to Hg0 and NxOy is released. both are carried out liquor to detector by N2, so the sensitivity is raised 1. 5 times. The application of this method has been confirmed by Joint UNEP/FAO/WHO food contamination monitoring programme for analytical quality assurance-milk powder test mate rial for lead, cadmium and mercury analysis: study Ⅷ(1994).
【CateGory Index】： O657.3
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【Co-citations】
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1 LIU Yan (Department of Chemistry and Environmental Science, Fuling Teachers College, Chongqing 408003, China);Discriminating Some Typical Problems in Chemical Equilibrium[J];Journal of Fuling Teachers College;2005-05
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1 QIU Hai ou 1, JIANG Hao 2, TANG Zhi yong 1, LIU Xiu ying 1, WANG Zhong lin 1 (1.China University of Geosciences(Wuhan), Faculty of Material science and Chemical engineering, Wuhan,430074; 2.China University of Geosciences(Beijing), Faculty;Determination of trace inorganic and organic mercury in pond water by hydride-generation atomic fluorescence spectrometry combined with on-line flow injection technique[J];Environmental Science and Technology;2000-04
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