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顾靖飞 《高等学校化学学报》1989,10(4):351-355
本文介绍全差示法调百参比T_r、反向微电流i、标尺放大倍数x的定义和性质,导出调零参比T_R,论述了参数间相互关系。用计算机绘制不同x的相对误差函数图。用全差示法测定磷矿样品的P_2O_5含量,结果良好。 相似文献
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71 REE data of 30 granitic rock species in southern China were collected. According tothe equilibrium partial melting model, the mineralogical and chemical compositions of theresidual phases as well as the melting degrees were calculated, which led to the determina-tion of the source materials of these granitic rock. The result shows that there are two typesof petrogenetic rocks among them, i.e. crustal granite and mixed granite. And the mixedratios were obtained for the latter case. A brief discussion on the factors affecting the REE patterns is also made. 相似文献
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