石墨炉原子吸收光谱分析法测定大鼠前列腺组织中的镉含量  

Determination of cadmium in prostate of the rats by graphite furnace atomic absorption spectrophotometry

作　　者：曹显庆[1] 逯岭松[2] 谢国明[2] 

机构地区：[1]重庆医科大学公共卫生学院,400016 [2]重庆医科大学医学检验系,400016

出　　处：《重庆医学》2011年第2期120-121,124,共3页Chongqing medicine

摘　　要：目的寻找可以消除大鼠前列腺组织中对镉检测产生干扰的基体改进剂,建立一种采用石墨炉原子吸收分光光度计准确测定大鼠前列腺组织中镉含量的新方法。方法取大鼠前列腺组织样本,用基体改进剂(1.0%HNO3+0.5%NH4H2PO4)进行稀释。使用Z-5000石墨炉原子吸收光谱仪全自动进样方法进行测定。结果在最适反应条件下,检测大鼠前列腺组织样本相对标准偏差(RSD)为0.12%～4.62%,回收率为95.8%～104.3%。结论石墨炉原子吸收光谱分析法是一种理想的检测大鼠前列腺组织中镉含量的方法,具有良好的准确度和精密度。Objective To develop an accurate method for determination of cadmium in prostate of the rats by the graphite furnace atomic absorption spectrometry（GFAAS） using suitable matrix modifer to eliminate the matrix interference in prostate of the rats.Methods After the sample was diluted by 1.0%HNO3＋0.5%NH4H2PO4,the cadmium in prostate of the rats was determined by GFAAS.Results Under the optimum experimental conditions,the relative standard deviation of the method was 0.12 % to 4.62%,and recovery was 95.8% to 104.3%.Conclusion The method is good for determination of cadmium in prostate of the rats and accurate with good correction and precision.

关 键 词：镉 分光光度法 原子 基体改进剂 大鼠 前列腺 

分 类 号：R737.25[医药卫生—肿瘤]