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头发很容易被氟化物污染,且不易被常规洗涤方法洗脱。本研究用随机区组设计,研究了不同洗涤剂对洗脱头发表面外污染氟的洗涤效果。实验结果表明,用0.25M HCl能完全洗脱头发表面污染的氟,而且发氟值不随洗涤次数的增加和浸泡时间的延长而降低,经扫描电镜观察,0.25M HCl浸泡发样24小时,其鳞片状结构没有被破坏。推荐用0.25M HCl清洗分析发样。
Hair is easily contaminated with fluoride and is not easily eluted by conventional washing methods. In this study, a randomized block design was used to study the effect of different detergents on the washing of fluoride contaminated on the surface of eluting hair. The experimental results show that 0.25M HCl can completely elute fluorine from the surface of the hair, and the fluorine value does not decrease with the increase of washing times and immersion time. After scanning electron microscope observation, the hair is soaked in 0.25M HCl for 24 hours. Scaly structure is not damaged. It is recommended to wash the assay with 0.25 M HCl.