摘要
针对粮食中镉含量较低的特点,建立了微波消解-石墨炉原子吸收分光光度法测定粮食中镉含量的方法。试验结果表明,该方法回收率为100%~110%,相对标准偏差为4.7%,定量限为0.41pg。该方法试剂用量少,操作简单、快捷,对于镉含量不高的粮食样品,可以提高其检测的灵敏度和准确度。
According to the characteristics of low cadmium content in grain,we set up a microwave digestion-graphite furnace atomic absorption spectrophotometric（GF-AAS）method for determination of cadmium content in grain.The test results showed that the recovery was 100%~110%,relative standard deviation was 4.7%,and quantitative limit was 0.41 pg.This method had the advantage of less reagent dosage,simple and quick operation,and high sensitivity and accuracy.
出处
《粮食与饲料工业》
CAS
2016年第2期67-68,73,共3页
Cereal & Feed Industry
关键词
粮食
镉
微波消解
石墨炉
原子吸收光谱
grain
cadmium
microwave digestion
graphite furnace
atomic absorption spectrum
