Preconcentration Methods for Analysis of Trace Elements in Liquid Samples Based on X-Ray Fluorescence Spectrometry

A review on the preconcentration methods for analysis of trace elements in liquid samples by X-ray fluorescence spectrometry was present in this paper, including physical method, chemical method precipitation/co-precipitation method, electrolytic deposition method, liquid-liquid extraction method, liquid-solid extraction method and mixed preconcentration method. The advantages, disadvantages and development trend of these preconcentration mehods were discussed (63 ref. cited).