Determination of cadmium in natural mineral water for drinking by atomic fluorescence spectrometry

Applying the hydride generation atomic fluorescence spectrometry to the medium of hydrochloric acid and using the cobalt ion-thiourea system for the enhancement effect,cadmium in natural mineral water for drinking was determined and the measurement conditions optimized.Featured by high sensitivity,wide linearity range and operation simplicity,the method is suitable for determining cadmium in natural mineral water for drinking,with the detection limit being 0.00027 mg/L and the relative standard deviation less than 7.9%.