【摘要】 目的建立禽、畜肝组织中镉(Cd)的石墨炉原子吸收光谱分析的方法。方法采用混合酸体系消解样品,以NH4H2PO4+Mg(NO3)2作基体改进剂,石墨炉原子吸收光谱法定量。结果本方法在0~5.0μg/L浓度范围内,相关系数r=0.9994,方法的相对标准偏差(RSD%)为2.9~6.8,对国家标准物质:猪肝(GBW08551)、大米粉(GBW10010),杨树叶(GBW08513)中Cd的测定值均在标准值范围。结论本方法具有方法简便、灵敏度高、稳定性好的特点,适用于禽、畜肝组织中Cd含量的测定。更多还原

【Abstract】 Objective To establish a method for detection detection of cadmium in liver tissues of poultry and livestock.Methods The samples were digested by mixed acids system,NH4H2PO4+Mg(NO3)2 as matrix modifier,and quantitative analyzed by graphite furnace atomic absorption spectrometry.Results In the concentration ranges of 0～ 5.0μg/L,the correlation coefficient was 0.9994,relative standard deviation(RSD%)was 2.9～6.8.The content of cadmium in pig liver tissue,rice and willow tree leaf were in normal range.conclusions The method is simple,sensitive and stable, suitable for detecting cadmium liver tissues of poultry and livestock.更多还原