Determination of 36 Major,Minor and Trace Elements in Soil and Stream Sediment Samples by X-Ray Fluorescence Spectrometry

A method for the determination of C,N,Na_(2)O,MgO,Al_(2)O_(3),SiO_(2),P,S,Cl,K_(2)O,CaO,Sc,Ti,V,Cr,Mn,Fe,Co,Ni,Cu,Zn,Ga,Nb,Zr,Y,Sr,Rb,Pb,Th,Ba,As,Br,Hf,La,Ce and Nd in soil and stream sediment samples by X-ray fluroescence spectrometry with pressed power pellet sample preparation was developed.The determination condition for C and N was optimized and the interference from background and spectra overlap was discussed.The matrix effect was corrected by experience coefficients and scattered radiation was used as internal standard for trace elements deterimination.The accuracy of the method was evaluated by analysis of certified reference soil samples.The results were in good agreement with centified values with precision of 6.0% RSD(n=12) expect for N and Cl(RSD11.0%).