材料期刊网

It is very important to detect trace elements for kilmberlite. Through improving the working conditions of X-ray fluorescence spectrometer and optimizing the analytical conditions, the determination method of trace elements, such as Sc, Cr, Ni, Y, Nb, La, in kimberlite was worked out. The method has been successfully applied to the determination of trace elements in over 2 thousand samples of kimberlite from Liaoning povince. The detection limits of the method were relatively low (the detection limit of Sc droped from 9.54 to 2.83 mug.g(-1) and the detection limit of La droped from 21.68 mug.g(-1) to 9.18 mug.g(-1)), i.e. 2.83, 2.15,2.20, 1.17,1.05 and 9.18 mug.g(-1) for Sc, Cr, Ni, Y, Nb and La, respectively. The precision of the method was very high with 2.10%-7.09% of RSD (n = 20). Compared with ICP spectrometry this method is satisfactory. The method has proven to be simple and rapid with low cost and high efficiency.