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在测定头发中的锰及其他微量金属时,对于无职业接触史者来说,测定前的样品清洗问题,显得不甚重要。但对于作业环境空气中存在该种金属烟、尘污染的接触者来说,测定前的样品如何将其表面吸附、粘着的金属清除干净且不致改变发内的原有含量,是十分重要的问题。为此,已有一些作者(1、2)对各种清洗方法存在的问题进行了探讨。本文仅就通常应用的洗涤剂及稀硝酸处理方法,通过一些简单的实验做了初步摸索。至于本文中所用的头发样品消化方法及锰分析方法,先简介如下。将清洗后在105～110℃
When determining the presence of manganese and other trace metals in hair, it is less important for those who have no history of occupational exposure to sample pre-assay cleaning issues. However, it is very important for contactors who have such metal smoke and dust pollution in the working environment air atmosphere, how to adsorb the surface of the sample before the measurement, and to clean the adhered metal without changing the original content in the hair . To this end, some authors (1, 2) have discussed the problems of various cleaning methods. This article only on the commonly used detergent and dilute nitric acid treatment, through some simple experiments to do a preliminary exploration. As for the hair sample digestion method and the method of manganese analysis used in this article, the following is an introduction. Will be cleaned at 105 ~ 110 ℃