Based on the remarkable sensitivity enhancement effect of Co~(2+) on Cd,a new chemical vapor generation system of Cd-KBH_(4)-NaIO_(3)-HCl was developed for the determination of trace Cd in foodstuff samples by atomic fluorescence spectrometry(AFS).

• 利用Co2+对镉的测定具有明显的增敏作用,采用Cd-KBH4-NaIO3-HC l新化学蒸气发生体系原子荧光光谱法测定粮食中痕量镉。