摘要
采用环绕加热式湿法消解,用磷酸铵基体作为改进剂,以石墨炉原子吸收光谱法测定大米中镉含量。结果表明:这一改进的方法测定大米中镉含量,精密度(n=7)在1.0%-1.2%之间,回收率在96%-98%之间。
The sample was treated by wet digestion method with a rounding heating,and using GF-AAS to determine cadmium content in rice.The results showed that the value of RSD(n=7) and the recovery rate of this modified method were in a range of 1.0%~1.2% and in a range of 96%~98%,respectively.
出处
《湖南农业科学》
2010年第8期104-105,108,共3页
Hunan Agricultural Sciences