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英语翻译There is a growing interest in determining mercury(Hg) l

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英语翻译
There is a growing interest in determining mercury(Hg) levels in the marine environment as well as in fish for human consumption.
Methyl mercury(Me Hg)in particular is the most toxic and bioaccumulative form of mercury in food webs and it is the predominant chemical form making up 80%-90% of the total mercury present in fish muscle tissue.Hence,fish and
other organisms at the end of the food chain constitute the
major source of MeHg in the human .As outcome of this risk,MeHg has been classically monitored in fish,and methodologies for mercury speciaion have increased significantly since the early 1990s.Currently,microwave-assisted extraction (MAE) has provided an efficient alternative strategy to conventional techniques for solvent extraction of a large amount of organometals compounds.The analytical techniques most frequently applied for Hg speciation analysis involve GC(GasChromatography) ,GC-CICP-MS(Gas Chromatography -CInductively Coupled Plasma Mass Spectrometry)
supercritical fluids chromatography (SFC),ion chromatograph(IC),HPLC-CCVAAS(High Performance Liqui
Chromatography-Cold Vapor Atomic Absorption Spectrometry) or ICP-MS systems .Several authors recommended a back-extraction of mercury species from organic solvents to cysteine or sodium thiosulphate aqueous solutions .Because MeHg is the most common organomercury compound in biological materials ,here we offer a new simple and cost-effective method to determine MeHg.Basically,this method combines the microwave assisted extraction followed by clean-up with cysteine acetate solution and MeHg quantification by a direct mercury analyzer (DMA).
英语翻译There is a growing interest in determining mercury(Hg) l
随着鱼类大量被人类消耗,人们对于确定海洋环境中汞的的标准越来越感兴趣.
尤其是甲基汞 ,是毒性最强及最易积聚在生物链中的一种汞的形式,并且甲基汞占鱼类肌肉组织中总汞的主导地位,足足有80%-90%.因此,鱼和其他在食物链末端的生物构成人体甲基汞的主要来源.作为危害人体的罪魁祸首,甲基汞已经在鱼肉中被严格检测,一套检验汞的方法早在20世界初期就已近开始越来越受关注.目前,微波辅助萃取为大量有机金属化合物溶剂的提取提供了一个有效的替代性战略来取代传统的技术.此项分析技术最常用于涉及气象色谱的汞形成分析.GC-CICP-MS是超临界流体色谱(SFC),离子色谱仪(IC),HPLC-CCVAAS(高性能液体流体色谱法,冷原子吸收光谱法)或则ICP-MS(等离子质谱) 系统.
几位发起人对半胱氨酸或硫代硫酸钠溶液提出了反萃汞类有机溶剂.
由于甲基汞是最常见的有机汞化合物的生物材料,在这里我们提供一种新的简单和具有成本效益的方法来检测甲基汞.本质上,这种方法结合了微波辅助提取其次是清理与半胱氨酸醋酸溶液和甲基汞量化的直接测汞仪(的DMA ) .