?烷基汞(甲基汞、乙基汞)作為有機汞形態(tài)之一,其生理毒性、生物富集性及環(huán)境中含量水平較其他有機汞更為突出,且引發(fā)了日本水俁病等汞污染事件,是國內外最受關注的有機汞形態(tài)。已有研究證實,受人類活動影響較大的自然環(huán)境水體有利于汞活化、甲基化和生物累積。
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浩瀚色譜（山東）應用技術開發(fā)有限公司采用氣相色譜-帶電子捕獲檢測器測定廢水中的甲基汞和乙基汞.前處理方法采用酸性條件下用苯萃取、中性條件下用L-巰基丙氨酸-醋酸鈉溶液分離-富集烷基汞,再在酸性條件下用苯反萃取提取烷基汞,用氣相色譜測定.水樣加標甲基汞回收率為93%~97%,RSD為2.18%~2.57%;乙基汞回收率為95%~97%,RSD為1.97%~2.03%.
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名稱：填充柱
規(guī)格：2m*3mm
型號：5%DEGS/Chromosorb W AW DMCS,80-100目
*高使用溫度：200°C
編號：20240111001
應用：GBT 14204-1993 水質 烷基汞的測定 氣相色譜法
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Alkyl mercury (methyl mercury, ethyl mercury), as one of the forms of organic mercury, has more prominent physiological toxicity, bioaccumulation, and environmental content than other forms of organic mercury, and has caused mercury pollution events such as Minamata disease in Japan. It is the most concerned form of organic mercury both domestically and internationally. Research has confirmed that natural environmental water bodies that are greatly affected by human activities are conducive to mercury activation, methylation, and bioaccumulation.
Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. uses gas chromatography with electron capture detector to determine methylmercury and ethyl mercury in wastewater. The pre-treatment method uses benzene extraction under acidic conditions, separation and enrichment of alkylmercury with L-mercaptoalanine sodium acetate solution under neutral conditions, and then extraction of alkylmercury with benzene reverse extraction under acidic conditions. The recovery rate of methylmercury in water sample with added standard is 93%~97%, with an RSD of 2.18%~2.57%; The recovery rate of ethyl mercury is 95%~97%, and the RSD is 1.97%~2.03%
Name: Filled Column
Specification: 2m * 3mm
Model: 5% DEGS/Chromosorb W AW DMCS, 80-100 mesh
*High operating temperature: 200 ° C
Number: 20240111001
Application: GBT 14204-1993 Water Quality Determination of Alkyl Mercury Gas Chromatography Method
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