泡沫塑料富集-火焰原子荧光光谱法测定土壤及水系沉积物中微量铊

Determination of trace thallium in soil and stream sediments by foamed plastic adsorption and enrichment-flame atomic fluorescence spectrometry

建立了一种采用硝酸-氢氟酸溶解样品,泡沫塑料富集-火焰原子荧光光谱法测定土壤及水系沉积物中微量铊的方法,并优化了实验条件,在取样0.5 g,解吸体积10 mL时,方法检出限为0.012 mg/kg,定量限为0.04 mg/kg。

The sample was dissolved with nitric acid and hydrofluoric acid.The experimental conditions were optimized.When sampling 0.5g and the desorption volume was 10mL,the detection limit was 0.012mg/kg and the quantitation limit was 0.04mg/kg.