Speciation of mercury in coal using HPLC-CV-AFS system: Comparison of different extraction methods
文献类型：期刊论文
| 作者 | Gao, Erle; Jiang, Guibin; He, Bin; Yin, Yongguang; Shi, Jianbo |
| 刊名 | JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
 |
| 出版日期 | 2008 |
| 卷号 | 23期号:10页码:1397-1400 |
| 英文摘要 | We propose an extraction methodology to extract toxic mercury species including methylmercury (MeHg) and ethylmercury (EtHg) in coal by comparing different extraction methods (shaking, ultrasonic and microwave assisted extraction) using different extraction solvents (TMA, KOH/ CH(3)OH, HCl, and acidic CuSO(4)/KBr). Microwave assisted extraction at the power of 90 W for 5 min using TMA (tetramethylammonium hydroxide) as the extractant provided the highest and the most satisfactory extraction efficiency for MeHg and EtHg. Speciation analysis of mercury was done by HPLC-AFS. The obtained concentrations in a certified reference material (CRM-580) were in good agreement with the certificated values. Ten coal samples from China were analyzed using the proposed method. MeHg was detected in most of the samples (6 out of 10) and EtHg was detected only in one. The concentrations were at the sub-ng level. Other forms of organomercuries might be found in the samples. Considering the high toxicities of organomercuries and the huge amount of coal consumption every year, people should be made more aware. |
| WOS记录号 | WOS:000259454200011 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/21997]  |
| 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 | Gao, Erle,Jiang, Guibin,He, Bin,et al. Speciation of mercury in coal using HPLC-CV-AFS system: Comparison of different extraction methods[J]. JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,2008,23(10):1397-1400. |
| APA | Gao, Erle,Jiang, Guibin,He, Bin,Yin, Yongguang,&Shi, Jianbo.(2008).Speciation of mercury in coal using HPLC-CV-AFS system: Comparison of different extraction methods.JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,23(10),1397-1400. |
| MLA | Gao, Erle,et al."Speciation of mercury in coal using HPLC-CV-AFS system: Comparison of different extraction methods".JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY 23.10(2008):1397-1400. |
入库方式： OAI收割
来源：生态环境研究中心
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