烷基汞會(huì)給人帶來很大的傷害,烷基汞比無機(jī)汞的毒性更大.其中最為典型的例子就是日本熊本縣水俁灣地區(qū)的居民因長期食用受甲基汞污染的魚貝類而引起的慢性甲基汞中毒,即水俁病.日本所發(fā)生的水俁病,是一種中毒性神經(jīng)疾病,是工業(yè)污染引起的有機(jī)汞中毒事件.
浩瀚色譜（山東）應(yīng)用技術(shù)開發(fā)有限公司以巰基棉（ＳＣＦ）為吸附劑，用柱上富集技術(shù)，濃縮富集水中的烷基汞（氯代甲基汞，氯代乙基汞）。用少量的２ｍｏｌ／ＬＨＣｌ洗脫，用甲苯作萃取劑從洗脫液中萃取烷基汞。對于簡單水體，該有機(jī)相可直接用于氣相色譜測定；對于復(fù)雜水體，采用反萃取的方法測定，即可進(jìn)一步濃縮，又可減少背景峰。用玻璃填充柱－電子捕獲檢測器響應(yīng)的氣相色譜法測定，最低檢測限為８．６×１０￣（－１２）ｇ，可檢測到廢水中０．３４ｎｇ／Ｌ的單一烷基汞（２．５Ｌ水樣）。對樣品的保存條件也作了探索。
名稱：填充柱
規(guī)格：2m*1/4
型號：5%DEGS/Chromosorb W AW DMCS80-100目
*高使用溫度：200°C
編號：20230511003
應(yīng)用：GBT 14204-93水質(zhì) 烷基汞的測定 氣相色譜法
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
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