烷基汞(甲基汞、乙基汞)作为有机汞形态之一,其生理毒性、生物富集性及环境中含量水平较其他有机汞更为突出,且引发了日本水俣病等汞污染事件,是国内外最受关注的有机汞形态。已有研究证实,受人类活动影响较大的自然环境水体有利于汞活化、甲基化和生物累积。
浩瀚色谱（山东）应用技术开发有限公司采用气相色谱-带电子捕获检测器测定废水中的甲基汞和乙基汞.前处理方法采用酸性条件下用苯萃取、中性条件下用L-巯基丙氨酸-醋酸钠溶液分离-富集烷基汞,再在酸性条件下用苯反萃取提取烷基汞,用气相色谱测定.水样加标甲基汞回收率为93%~97%,RSD为2.18%~2.57%;乙基汞回收率为95%~97%,RSD为1.97%~2.03%.
名称：填充柱
规格：2m*3mm
型号：5%DEGS/Chromosorb W AW DMCS,80-100目
*高使用温度：200°C
编号：20240111001
应用：GBT 14204-1993 水质 烷基汞的测定 气相色谱法
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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