摘要
[目的]建立一种简便、快速、准确的末梢血中铅、镉的测定方法。[方法]采集末梢血100μl加稀硝酸酸化稀释，在化学改进剂磷酸氢二铵、Triton X-100和氯化钯作用下，经石墨炉高温原子化和氘灯背景校正，应用标准加入法计算含量值。[结果]本法以国家有证标准物质GBW09133、GBW09139验证，结果相符，铅的相对偏差为-2．1％～1．0％。镉的相对偏差为-1．9％～1．1％。[结论]本法为一种易为受检者接受的快速准确的微量血中铅镉的测定方法。
[Objective]To establish a simple,rapid and accurate method to detect lead and cadmium in peripheral blood by graphite furnace atomic absorption spectrometric method. [Methods] 100 μl peripheral blood is acidified by diluted HNO3 ,modified by （NH4）2HPO4、PdCl2 and Trition-100 mixed solution,D2 lamp is used for background correction, result was given from standard addition method. [Results] The method was verified by national standard material GBW09133,GBW09139 with the correspondent result. The relative deflection of lead was -2.1% -1.0% while cadmium was -1.9 %-1.1%. [Conclusion]This is a rapid and accurate method for trace blood lead and cadmium test.
出处
《预防医学论坛》
2007年第12期1104-1106,共3页
Preventive Medicine Tribune
关键词
血铅
血镉
标准加入法
化学改进剂
石墨炉原子吸收分光光度法
Blood lead
Blood cadmium
Standard addition method
Matrix modifier
Graphite furnace atomic absorption spectrometric
