烷基汞会给人带来很大的伤害,烷基汞比无机汞的毒性更大.其中最为典型的例子就是日本熊本县水俣湾地区的居民因长期食用受甲基汞污染的鱼贝类而引起的慢性甲基汞中毒,即水俣病.日本所发生的水俣病,是一种中毒性神经疾病,是工业污染引起的有机汞中毒事件.
浩瀚色谱（山东）应用技术开发有限公司以巯基棉（ＳＣＦ）为吸附剂，用柱上富集技术，浓缩富集水中的烷基汞（氯代甲基汞，氯代乙基汞）。用少量的２ｍｏｌ／ＬＨＣｌ洗脱，用甲苯作萃取剂从洗脱液中萃取烷基汞。对于简单水体，该有机相可直接用于气相色谱测定；对于复杂水体，采用反萃取的方法测定，即可进一步浓缩，又可减少背景峰。用玻璃填充柱－电子捕获检测器响应的气相色谱法测定，最低检测限为８．６×１０￣（－１２）ｇ，可检测到废水中０．３４ｎｇ／Ｌ的单一烷基汞（２．５Ｌ水样）。对样品的保存条件也作了探索。
名称：填充柱
规格：2m*1/4
型号：5%DEGS/Chromosorb W AW DMCS80-100目
*高使用温度：200°C
编号：20230511003
应用：GBT 14204-93水质 烷基汞的测定 气相色谱法
Alkyl mercury can cause great harm to people, and its toxicity is greater than inorganic mercury. The most typical example is chronic methylmercury poisoning caused by long-term consumption of fish and shellfish contaminated with methylmercury in the Minamata Bay area of Kumamoto Prefecture, Japan, known as Minamata disease. Minamata disease, which occurs in Japan, is a toxic neurological disease and an organic mercury poisoning event caused by industrial pollution
Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. uses thiol cotton (SCF) as an adsorbent and uses column enrichment technology to concentrate and enrich alkyl mercury (chloromethylmercury, chloroethylmercury) in water. Wash with a small amount of 2mol/LHCl, and use toluene as an extractant to extract alkyl mercury from the eluent. For simple water bodies, this organic phase can be directly used for gas chromatography determination; For complex water bodies, the use of reverse extraction can further concentrate and reduce background peaks. The minimum detection limit of gas chromatography with glass packed column electron capture detector response is 8.6 × From 10 to (-12) g, a single alkyl mercury (2.5L water sample) of 0.34ng/L can be detected in wastewater. The preservation conditions of the samples were also explored.
Name: Filled Column
Specification: 2m * 1/4
Model: 5% DEGS/Chromosorb W AW DMCS80-100 mesh
*High operating temperature: 200 ° C
No.: 20230511003
Application: GBT 14204-93 Water quality - Determination of alkyl mercury - Gas chromatography method
滕州市浩瀚色谱仪器技术服务有限公司
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