The effects of instrumental parameters and agents on the atomic fluorescence signal of tellurium have been studied and optimum conditions were recommended. The extraction behavior of tellurium in aqueous diethyldithiocarbamate ( DDTC)-CCl4 system and reduction of tellurium(ⅵ) were examined. 研究了仪器工作条件和试剂对碲原子荧光强度的影响、最佳条件的选择、碲在二乙基二硫代氨基甲酸盐(DDTC)-CCl4体系中的萃取行为及碲(Ⅵ)的还原;
This paper deals with petrographic characteristics and coal qualities of Jiaoping coal by means of coal petrologic, instrumental analytical and organic solution extraction methods, and so on. 基于煤岩分析、仪器分析及有机溶剂抽提等方法,对焦坪煤进行了系统的煤岩、煤质研究。