Optimization of pretreatment method for alkylmercuries speciation in coal by high-performance liquid chromatography coupled with UV-digestion cold vapor atomic fluorescence spectrometry

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	Optimization of pretreatment method for alkylmercuries speciation in coal by high-performance liquid chromatography coupled with UV-digestion cold vapor atomic fluorescence spectrometry
	He, Bin; Gao, Erle; Shi, Jianbo; Liang, Lina; Yin, Yongguang; Jiang, Guibin
刊名	SPECTROSCOPY LETTERS
	2006
卷号	39 期号:6 页码:785-796
关键词	alkylmercuries coal samples pretreatment method speciation analysis
英文摘要	Exhaustive extraction of analytes in their original chemical forms from samples with complex matrices is a pivotal step for speciation analysis. Herein we propose a pretreatment method for extracting and preconcentrating methylmercury and ethylmercury from coal samples by using KBr - H2SO4/CuSO4 - C6H5CH3 - Na2S2O3 system. The extraction conditions, including the volume of the organic phase and the extraction time, were optimized in detail. Speciation analysis of alkyl-mercuries was carried out by high-performance liquid chromatography online coupled with UV-digestion and cold vapor atomic fluorescence spectrometry. The detection limits were 0.6 ng mL(-1) for methylmercury and 1 ng mL(-1) for ethylmercury, respectively. The recoveries of methylmercury and ethylmercury spiked in a sample were 84% and 82%, respectively. The method was applied successfully to analysis of alkylmercuries in four coal samples collected from northeast China.
WOS记录号	WOS:000242141800019
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/22901]
专题	生态环境研究中心_环境化学与生态毒理学国家重点实验室
推荐引用方式 GB/T 7714	He, Bin,Gao, Erle,Shi, Jianbo,et al. Optimization of pretreatment method for alkylmercuries speciation in coal by high-performance liquid chromatography coupled with UV-digestion cold vapor atomic fluorescence spectrometry[J]. SPECTROSCOPY LETTERS,2006,39(6):785-796.
APA	He, Bin,Gao, Erle,Shi, Jianbo,Liang, Lina,Yin, Yongguang,&Jiang, Guibin.(2006).Optimization of pretreatment method for alkylmercuries speciation in coal by high-performance liquid chromatography coupled with UV-digestion cold vapor atomic fluorescence spectrometry.SPECTROSCOPY LETTERS,39(6),785-796.
MLA	He, Bin,et al."Optimization of pretreatment method for alkylmercuries speciation in coal by high-performance liquid chromatography coupled with UV-digestion cold vapor atomic fluorescence spectrometry".SPECTROSCOPY LETTERS 39.6(2006):785-796.