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近年来,人发被视为理想的活体组织样品,它取样容易,便于保存,微量元素含量较血样高,迄今已对60余种元素进行研究。三价铬是人体必需的微量元素,具有重要的营养作用,人体内的铬几乎全系三价。六价铬对人体有毒害怍用,它干扰很多重要酶的活性,损伤肝和肾脏,并诱发肺癌。人发内含有一定量的铬,而且含量比较稳定,可作为体内铬营养状态的有用指标。发样中铬的原子吸收法已有报导。为建立更灵敏的分析方法,本文在原有工作基础上,对APDC-DDTC-MIBK体系萃取-火焰原子吸收分析进行了探讨。该法研究了适宜的萃取和测定条件,并对可能的共存元素进行了试验,经实际样品考验和核对,方
In recent years, human hair is regarded as an ideal sample of living tissue, which is easy to sample and convenient to store. The content of trace elements is higher than that of blood. So far, more than 60 kinds of elements have been studied. Trivalent chromium is an essential trace element of the human body, has an important nutritional role, almost all of the human body chromium trivalent. Hexavalent chromium toxic to human use, it interferes with the activity of many important enzymes, damage the liver and kidneys, and induce lung cancer. Human hair contains a certain amount of chromium, and the content is relatively stable, can be used as a useful indicator of chromium nutrition status. Arsenic has been reported in atomic absorption spectrometry. In order to establish a more sensitive analytical method, based on the original work, the paper studied the extraction-flame atomic absorption spectrometry (APDC-DDTC-MIBK) system. The law studied the appropriate extraction and determination of conditions, and the possible co-existence of elements were tested by the actual sample test and check, square