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《Chinese Journal of Analysis Laboratory》 2008-09
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Study on adsorption performance of trace Hg on an organic-inorganic mesorporous material

ZHOU Le-zhou1,ZHOU Fang-qin1,HUANG Rong-hui1,LIU Zheng-hua1 and JIANG Fang-ming2(1.College of Chemistry,Xiangtan Univerdity,Xiangtan 411105;2.Fireworks and Firecracker Inspection Centre of Hunan Entry-Exit Inspection and Quarantine Bureau,Liuyang 410300)  
A functiontalized organic-inorganic mesorporous material has been studied on preconcentration and determination of trace mercury.In this process,the effects of pH of solution,temperature,elution conditions on preconcentration of trace mercury were studied,and the effect of interfering ions was also investigated.The results showed that the material not only has highly selective affinity for Hg2+ but also large adsorbent volume.It was found that mercury could be adsorbed and eluted quantitatively on organic-inorganic mesorporous material at pH 3.2、 temperature(20±1 ℃).The static adsorption capacity of mercury on reported organic-inorganic material was 119.15 mg/g.Determination of trace mercury by atomic fluorescence spectrometry(AFS) after perconcentration on supported this material was eluted with concentrated HCl.The linear range was 0.005~5 ng/mL.The detection limit was 1.89×10-9 g/L(3σ). The RSD was 2.69%(n=11,c=0.5 ng/mL).The recoveries of mercury were 95.3%~104.5%.The method has been applied to the determination of trace mercury in water samples with satisfactory results.
【Fund】: 湖南省自然科学基金(05JJ40024)项目资助
【CateGory Index】: X832
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【Co-citations】
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1 Yi Zhizhong1 , Ruan Xiangyuan2 (1.Dongguan Product Quality Supervision and Testing Institute; 2.Dongguan Universty of Technology);Determination of Trace Arsenic in Soft Drink by Hydride Generation and Atomic Fluorescence Sepectrometry[J];Journal of Dongguan Institute of Technology;2003-01
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【Co-references】
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1 CHEN Hong,HAN Yong,SUN Yu-fang,JIANG Qian,ZHONG Ming,GONG Hua,WANG Ru-hai (Soil and Environment Analysis Center,Institute of Soil Science,Chinese Academy of Sciences,Nanjing 210008,China);Study on the useful life of low concentration mercury standard solution by atomic fluorescence spectrometry[J];Chemical Reagents;2008-02
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1 YIN Gang, ZHAN Jin, LIU Zheng *, YUAN Nai Ju (Department of Chemical Engineering, Tsinghua University, Beijing 100084, China);Characterization of the Adsorption of Bovine Serum Albumin on Hydroxylapatite[J];Chemical Research In Chinese Universities;2001-05
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