Cadmium in Soil Determination by Hydride Generation-Atomic Fluorescence Spectrometry

The cadmium in soil was determinated by hydride generation-atomic fluorescence spectrometry.It was discussed on the interference of coexisting elements and elimination method.The optimized tests produced the following results: a good linearity in range from 0 μg/L to 120 μg/L;detection limit 0.003 mg/kg(by 0.600 g sample,volume to 45 mL);RSD of standard soil sample ≤3.7%;spiked recovery 94.8%,and the result was equaled to the soil standard sample value measured by graphite furnace atomic absorption spectrophotometry.