首页> 美国政府科技报告 >Determination of Methyl Mercury by Aqueous Phase Ethylation, Followed by Gas Chromatographic Separation with Cold Vapor Atomic Fluorescence Detection.

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Determination of Methyl Mercury by Aqueous Phase Ethylation, Followed by Gas Chromatographic Separation with Cold Vapor Atomic Fluorescence Detection.

机译：水相乙基化法测定甲基汞，气相色谱分离冷原子荧光检测法测定甲基汞。

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A recent national sampling of streams in the United States revealed low methyl mercury concentrations in surface waters. The resulting median and mean concentrations, calculated from 104 samples, were 0.06 nanograms per liter (ng/L) and 0.15 ng/L, respectively. This level of methyl mercury in surface water in the United States has created a need for analytical techniques capable of detecting sub-nanogram per liter concentrations. In an attempt to create a U.S. Geological Survey approved method, the Wisconsin District Mercury Laboratory has adapted a distillation/ethylation/ gas-phase separation method with cold vapor atomic fluorescence spectroscopy detection for the determination of methyl mercury in filtered and unfiltered waters. This method is described in this report. Based on multiple analyses of surface water and ground-water samples, a method detection limit of 0.04 ng/L was established. Precision and accuracy were evaluated for the method using both spiked and unspiked ground-water and surface- water samples.

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De Wild, J. F.; Olson, M. L.; Olund, S. D.;
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年度 2002
页码 1-20
总页数 20
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Gas chromatography; Separation processes; Water contamination; Trace metals; Distillation; Fluorescence; Methyl mercury; Aqueous phase ethylation; Cold vapor atomic fluorescence detection;

机译：气相色谱;分离过程;水污染;痕量金属;蒸馏;荧光;甲基汞;水相乙基化;冷原子荧光检测;

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3. On-line high-performance liquid-chromatographic separation and cold vapor atomic absorption spectrometric determination of methylmercury and inorganic mercury [J] . S. Rio-Segade, C. Bendicho Talanta: The International Journal of Pure and Applied Analytical Chemistry . 1999,第2期

机译：高效液相色谱在线分离和冷蒸气原子吸收光谱法测定甲基汞和无机汞
4. DETERMINATION OF ORGANOMERCURY SPECIES BY GAS CHROMATOGRAPHY COUPLED WITH COLD VAPOR ATOMIC FLUORESCENCE SPECTROMETRY FOLLOWING PHENYLATIONPURGE AND TRAP PRECONCENTRATION [C] . International Beijing Conference and Exhibition on Instrumental Analysis . 2005

机译：通过气相色谱法与苯并处理和陷阱前浓度的冷气原子荧光光谱偶联的气相色谱法测定
5. Mercury-thiourea complex ion chromatography with on-line cold vapor generation and atomic fluorescence spectrometric detection (HgTu/IC-CVAFS). [D] . Shade, Christopher William. 2005

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6. Solid Phase Extraction of Inorganic Mercury Using 5-Phenylazo-8-hydroxyquinoline and Determination by Cold Vapor Atomic Fluorescence Spectroscopy in Natural Water Samples [O] . Mirna Daye, Baghdad Ouddane, Jalal Halwani, 2013

机译：5-苯基偶氮-8-羟基喹啉固相萃取无机水和冷水原子荧光光谱法测定天然水样
7. Determination of methyl mercury by aqueous phase ethylation, followed by gas chromatographic separation with cold vapor atomic fluorescence detection [O] . John F. De Wild, Mark L. Olsen, Shane D. Olund 2002

机译：水相乙基化水集测定甲基汞，用冷蒸气原子荧光检测进行气相色谱分离
8. Methods of Analysis by the U.S, Geoogical Survey National Water Quality Laboratory-Determination of Organic Plus Inorganic Mercury in Filtered and Unfiltered Natural Water with Cold Vapor-Atomic Fluorescence Spectometry. [R] . Garbarino, J. R., Damrau, D. L. 2001

机译：美国地质调查国家水质实验室分析方法 - 用冷蒸气 - 原子荧光光谱法测定过滤和未过滤天然水中的有机加无机汞。

Determination of Methyl Mercury by Aqueous Phase Ethylation, Followed by Gas Chromatographic Separation with Cold Vapor Atomic Fluorescence Detection.

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