摘要
在“六次甲基四胺-二苯胍(DPG)-二安替比林甲烷(DAM)—碘化钾”体系中,镉在JP-2型示波极谱仪上于-0.75V处能产生一灵敏的络合物吸附催化波.利用该法测定生物样品中痕量镉,其检出限为5×10^(-4)μg/ml,线性范围为5×10^(-4)～5×10^(-2)μg/ml.使用该法测定肝癌患者和健康人的发镉水平,其(?)±s分别为13.11±6.99ppm和5.61±4.62ppm,结果表明二者差异有显著性意义,P<0.05。
A primary study of the relation between cadmium and liver cancer by catalytic oscillopolarographic method was reported in this paper. There was a sensitive catalytic absorptive wave of cadmium complex with detection limit of 5×10-4 μg/ml and linear range of 5×10-4- 5×10-2 μg/ml at -0.75V on the JP-2 oscillopolarograph in the measuring system of hexamethylene tetraamine, dipheylguanidine, diantipyrylmethane and potassium iodide. This catalytic absorptive wave of cadmium complex can be used successfully to determine the trace amount of cadmium in the biological samples. A comparison of the hair cadmium levels between the patients with liver cancer and healthy persons was made by this method. It was found that there were significant differences in the cadmium levels between the two cases.
出处
《同济医科大学学报》
CAS
CSCD
北大核心
1992年第1期46-48,共3页
Acta Universitatis Medicinae Tongji
关键词
镉
吸附催化波
肝肿瘤
cadmium
liver cancer
catalytic oscillopolarograghy
