黄健, 王爱华, 任昕昕, 魏春明, 崔冠峰, 董颖, 栾玉静, 杜鸿雁, 常靖, 王芳琳. 电感耦合等离子体质谱在吸入性汞中毒死亡案件中的应用[J]. 刑事技术, 2020, 45(1): 93-96。
HUANG Jian, WANG Aihua, REN Xinxin, WEI Chunming, CUI Guanfeng, DONG Ying, LUAN Yujing, DU Hongyan, CHANG Jing, WANG Fanglin. Application of ICP-MS into Testing the Death Case from Poisoning of Mercury Vapor[J]. Forensic Science and Technology, 2020, 45(1): 93-96.
Application of ICP-MS into Testing the Death Case from Poisoning of Mercury Vapor
HUANG Jian, WANG Aihua, REN Xinxin, WEI Chunming, CUI Guanfeng, DONG Ying, LUAN Yujing, DU Hongyan, CHANG Jing, WANG Fanglin*
Institute of Forensic Science, Ministry of Public Security &Beijing Engineering Research Center of Crime Scene Evidence Examination, Beijing 100038, China
Abstract
Objective To establish an ICP-MS (inductively coupled plasma-mass spectrometry) method for determining the mercury in biological samples from the death cases of mercury-vapor poisoning.Methods The samples were digested under microwave through the formula of nitric acid and hydrogen peroxide, with the digested solution being analyzed of its mercury content by ICP-MS.Results Compared with the local healthy individuals, the victims were of much higher contents of mercury in their blood, leaving a strong clue for determining the cause of death.Conclusions Microwave digestion is suitable for preparation of various biological samples. The following analysis by ICP-MS after microwave digestion is accurate and reliable, too. Thus, the integration of microwave digestion and ICP-MS is capable for various biological samples of poisoning cases to be analyzed of the mercury (if any) content.
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焦芳婵, 毛雪, 李润植. 金属结合蛋白基因及其在清除重金属污染中的应用[J]. , 2002, 24(1): 82-86. (JIAOFangchan, MAOXue, LIRunzhi. Genes of metal-binding proteins and their application in bioremediation of heavy metals[J]. , 2002, 24(1): 82-86. )
一些微生物和植物由于对毒性金属具有独特的抗性机制,使得利用它们来清除日益严重的环境污染已发展成为一种十分有效的技术——生物修复。研究表明,不同的金属结合蛋白(如MT 和PC),在生物忍耐和降解过量重金属毒性机制中起重要作用。愈来愈多的MT 和PC基因被克隆,并已成功地应用于生物遗传转化,这些转基因生物在清除重金属污染方面已显示出潜在的应用价值。 Abstract:Heavy metal pollution has become a global environmental hazard.The use of microorganisms and plants for the decontamination of heavy metals is recognized as a low lost and high efficiency method for cleaning up metal contamination.It shows that various metal-binding proteins such as metallothioneins (MTs) or phytochelatines (PCs) play an important role in defense systems and detoxification to heavy metals in organisms.Many genes of MTs and PCs have been cloned and utilized successfully in genetically modified bacteria and plants for increasing remediation capacity.These transgenic organisms have been displayed a great potential in bioremediation and phytoremediation of heavy metals.