trace element analysis
4.The relationship between chemical composition analysis,trace element analysis,Raman spec-trum,EPR spectrum,microtopographic and microstructural analysis for different genetic apatites is investigated, According to the variation of,F ̄-and OH ̄-contents the apatite is classified into four subspecies and their genetic correlation is recognized.
5.DETERMINATION OF TRACE ELEMENT Se BY TOTAL REFLECTION X-RAY FLUORESCENCE ANALYSIS
6.ANALYSIS OF TRACE ELEMENT CONTENT IN TRANSPARENT LENS AND SENILE CATARACT LENS
10.According to the comparison and analysis of mineral composition and geochemical characteristics of trace element, sulfur isotope, hydrogen and oxygen isotope, lead isotope and rare earth element in the gold ore and the altered spilite from the deposits of Huachanggou Gold Mine, it was confirmed that the gold ore had obvious succession of the basic igneous rock.

