Determination of Trace Selenium in Tropical Fruitby Atomic Fluorescence Spectroscopy

Determination of trace selenium was made in tropical fruit under the most optimal conditions by using hydride generation-atomic fluorescence spectrometry. The result showed that the detection limit obtained for selenium was 0.0885 μg/L. It is lower than that of the first national standard method (1.5 μg/L). The average recovery rate of samples was 86.2%～103.8%. The concentration(10～100 μg/L) of selenium correlated linearly to intensity of fluorescence (r = 0.9995). The analytical performance was simple and convenient for the determination of trace selenium.