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Graphite furnace atomic absorption spectrometric method for the determination of cadmium in urine
Author(s): 
Pages: 2046-2047
Year: Issue:  9
Journal: Chinese Journal of Health Laboratory Technology

Keyword:  原子吸收 石墨炉 尿中镉;
Abstract: 目的:探索简便快速准确检测尿中镉的方法。方法:采用Triton X-100稀释首次350℃通氧灰化,再次450℃灰化、原子化温度1500℃,0.1%硝酸钯+0.06%硝酸镁作为基体改进剂,石墨炉原子吸收法测定。结果:增加通氧灰化能有效消除积炭干扰,线性范围为0μg/L~5μg/L,回收率为97.7%~104%,检测限为0.24μg/L,精密度测定相对标准偏差为2.7%~5.9%。结论:本方法标准曲线配置简便、样品测定快速准确灵敏,能满足大批量尿样的检测工作。
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