摘要
采用微波消解系统消解头发样品，将头发样品置于密闭容器内，加入一定量的硝酸和双氧水，放在微波炉内进行消解。用火焰原子吸收光谱法测定正常头发和脱落头发中Cu和Zn的质量分数，得出30～40岁中年男子正常发样Cu和Zn的质量分数分别为7．78，146．87μg／g，脱落发样Cu和Zn的质量分数分别为6.88，138．67μg／g；30～40岁中年妇女正常发样Cu和Zn的质量分数分别为8．14，159．63μg／g，脱落发样Cu和Zn的质量分数分别为7．92，155．20μg／g；30岁以下哺乳期女子正常发样中Cu和Zn的质量分数分别为7．33，143．66μg／g，脱落发样中Cu和Zn的质量分数分别为6．23，129．39μg／g。结果表明，对于同一个人来说，脱落头发中Cu和Zn的质量分数明显低于正常头发。
Hair samples were digested in a microwave digestion system. Nitric acid and hydrogen peroxide solution were added to the sample in a closed digestion vessel and then digested in a microwave oven. The mass fraction of Cu and Zn in regular and dropped hair were detected by flame atomic absorption spectrometry. The results show that the mass fraction of Cu and Zn in regular hair of men whose age is 30-40 are 7.78, 146.87μg/g and in dropped hair are 6.88, 138.67μg/g respectively. The mass fraction of Cu and Zn in regular hair of women whose age is 30-40 are 8.14, 159.63μg/g and in dropped hair are 7.92, 155.20μg/g respectively. The mass fraction of Cu and Zn in regular hair of suckling women who are less than 30 are 7.33, 143.66μg/g and in dropped hair 6.23, 129.39μg/g respectively. The results also show that the mass fraction of Cu and Zn in dropped hair are obviously lower than those of Cu and Zn in regular hair of the same person.
出处
《辽宁石油化工大学学报》
CAS
2006年第2期8-11,共4页
Journal of Liaoning Petrochemical University
关键词
微波消解
正常头发
脱落头发
火焰原子吸收光谱法
铜
锌
Microwave digestion
Regular hair
Dropped hair
Flame atomic absorption spectrometry
Copper
Zinc
