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压力自控微波消解-石墨炉原子吸收光谱法测定鹅肝中的镉

作  者:
司文会;李克俭;郑丽卿;方志成
单  位:
苏州农业职业技术学院;苏州泰事达检测技术有限公司
关键词:
微波消解;石墨炉原子吸收光谱法;鹅肝;镉
摘  要:
利用压力自控微波密闭消解-石墨炉原子吸收光谱法测定鹅肝中镉,在固定微波输出功率600W及阶梯升压方式加热、加压条件下,分析样与混酸充分混合,快速分解,减少了分析液引入污染的机会。方法的检出限0.36μg/mL,变异系数为3.03%,回收率为97.09%~100.86%。本方法实际样品分析,简快、准确结果满意。
译  名:
Microwave Airtight Digestion and Atomic Absorption Spectrophotometric Analysis of Cadmium in Goose Liver
作  者:
SI Wen-hui1,LI Ke-jian1,ZHENG Li-qing2,FANG Zhi-cheng2(1.Suzhou Polytechnic Institute of Agriculture,Suzhou 215008,China;2.Suzhou Testar Testing Technology Co.Ltd.,Suzhou 215104,China)
关键词:
microwave digestion;graphite furnace atomic absorption spectrometry;goose liver;cadmium
摘  要:
Goose liver was digested with mixed acids by a microwave system under a gradient pressure program at a power output of 600 W to determine the content of cadmium by an atomic absorption spectrometry method.The limit of detection was 0.36μg/mL,the precision RSD of 5 replicate determinations was 3.03%,and the spike recoveries in 5 samples were between 97.09%and 100.86%.This method may reduce the sample contamination problem effectively due to thorough exposure of samples to mixed acid for rapid digestion in an airtight environment,and is simple,convenient,quick and accurate.

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