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Development of a mild mercaptoethanol extraction method for determination of mercury species in biological samples by HPLC-ICP-MS
Wang M(王萌); Feng WY(丰伟悦); Shi JW(史俊稳); Zhang F(张芳); Wang B(汪冰); Zhu MT(朱墨桃); Li B(李柏); Zhao YL(赵宇亮); Chai ZF(柴之芳); Wang, M; Feng, WY; Shi, JW; Zhang, F; Wang, B; Zhu, MT; Li, B; Zhao, YL; Chai, ZF
2007
发表期刊TALANTA
卷号71期号:5页码:2034-2039
通讯作者Chinese Acad Sci, Inst High Energy Phys, Lab Bioenvironm Hlth Sci Nanoscale Mat, Beijing, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Key Lab Analyt Tech, Beijing, Peoples R China ; Chinese Acad Sci, Grad Sch, Beijing, Peoples R China ; Shenzhen Univ, Inst Nucl Technol, Shenzhen, Peoples R China ; Shanghai Univ, Inst Nanochem & Nanobiol, Shanghai, Peoples R China
文章类型Article
摘要A mild, efficient and convenient extraction method of using 2-mercaptoethanol contained extractant solution combined with an incubator shaker for determination of mercury species in biological samples by HPLC-ICP-MS has been developed. The effects of the concentration of 2-mercaptoethanol, the composition of the extractant solution and the shaking time on the efficiency of mercury extraction were evaluated. The optimization experiments indicated that the quantitative extraction of mercury species from biological samples could be achieved by using 0.1% (v/v) HCl, 0.1% (v/v) 2-mercapoethanol and 0.15% (m/v) KCl extractant solution in an incubator shaker for shaking overnight (about 12 h) at room temperature. The established method was validated by analysis of various biological certified reference materials, including NRCC DOLT-3 (dogfish liver), IAEA 436 (tuna fish), IAEA MA-B-3/TM (garfish filet), IAEA MA-M-2/TM (mussel tissue), GBW 08193 (bovine liver) and GBW 08572 (prawn). The analytical results of the reference materials were in good agreement with the certified or reference values of both methyl and total mercury, indicating that no distinguishable transformation between mercury species had occurred during the extraction and determination procedures. The limit of detection (LOD) for methyl (CH3Hg+) and inorganic mercury (Hg2+) by the method are both as 0.2 mu g L-1. The relative standard deviation (R.S.D.s) for CH3Hg+ and Hg2+ are 3.0% and 5.8%, respectively. The advantages of the developed extraction method are that (1) it is easy to operate in HPLC-ICP-MS for mercury species determination since the extracted solution can be directly injected into the HPLC column without pH adjustment and (2) the memory effect of mercury in the ICP-MS measurement system can be reduced. (c) 2006 Elsevier B.V. All rights reserved.
关键词mercury speciation mild extraction HPLC-ICP-MS biological sample memory effect
学科领域Chemistry
DOI10.1016/j.talanta.2006.09.012
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语种英语
WOS研究方向Chemistry
WOS类目Chemistry, Analytical
WOS记录号WOS:000245706400033
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被引频次:110[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/239628
专题院士
实验物理中心
加速器中心
粒子天体物理中心
多学科研究中心
作者单位中国科学院高能物理研究所
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GB/T 7714
Wang M,Feng WY,Shi JW,et al. Development of a mild mercaptoethanol extraction method for determination of mercury species in biological samples by HPLC-ICP-MS[J]. TALANTA,2007,71(5):2034-2039.
APA 王萌.,丰伟悦.,史俊稳.,张芳.,汪冰.,...&Chai, ZF.(2007).Development of a mild mercaptoethanol extraction method for determination of mercury species in biological samples by HPLC-ICP-MS.TALANTA,71(5),2034-2039.
MLA 王萌,et al."Development of a mild mercaptoethanol extraction method for determination of mercury species in biological samples by HPLC-ICP-MS".TALANTA 71.5(2007):2034-2039.
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