Copper(Ⅱ) oxides powder catalysts were prepared by three different methods,thermal decomposition,solid phase reaction and chemical precipitation.The phase,surface structure,morphology,particle size and catalytic acti...Copper(Ⅱ) oxides powder catalysts were prepared by three different methods,thermal decomposition,solid phase reaction and chemical precipitation.The phase,surface structure,morphology,particle size and catalytic activity of the powder for H 2O 2 decomposition were investigated by XRD,SEM,FT IR and the surface area measurement techniques.These studies revealed that high low sequence of catalytic activity of powder prepared by three different methods is opposite from their surface area,and that catalytic activity of the powder is principally related to its surface structure and active compositions.展开更多
在碱性介质中,甲巯咪唑能强烈增敏纳米-鲁米诺-硝酸银化学发光体系产生较强的化学发光信号,据此建立了一种流动注射化学发光测定甲巯咪唑的新方法.在优化实验条件下,该方法对甲巯咪唑的检测线性范围为1.0x10-9～1.0 x 10-8、1.0x10-8～ ...在碱性介质中,甲巯咪唑能强烈增敏纳米-鲁米诺-硝酸银化学发光体系产生较强的化学发光信号,据此建立了一种流动注射化学发光测定甲巯咪唑的新方法.在优化实验条件下,该方法对甲巯咪唑的检测线性范围为1.0x10-9～1.0 x 10-8、1.0x10-8～ 1.0 x 10-7、1.0x10-7～1.0x10-6 g/mL,检出限（S/N=3）为3.0x10-10 g/mL,相对标准偏差为1.2％ （n=11,ρ=1.0x10-8g/mL）.将该法用于药物中甲巯咪唑含量的测定,结果满意.同时。展开更多
文摘Copper(Ⅱ) oxides powder catalysts were prepared by three different methods,thermal decomposition,solid phase reaction and chemical precipitation.The phase,surface structure,morphology,particle size and catalytic activity of the powder for H 2O 2 decomposition were investigated by XRD,SEM,FT IR and the surface area measurement techniques.These studies revealed that high low sequence of catalytic activity of powder prepared by three different methods is opposite from their surface area,and that catalytic activity of the powder is principally related to its surface structure and active compositions.
文摘在碱性介质中,甲巯咪唑能强烈增敏纳米-鲁米诺-硝酸银化学发光体系产生较强的化学发光信号,据此建立了一种流动注射化学发光测定甲巯咪唑的新方法.在优化实验条件下,该方法对甲巯咪唑的检测线性范围为1.0x10-9～1.0 x 10-8、1.0x10-8～ 1.0 x 10-7、1.0x10-7～1.0x10-6 g/mL,检出限（S/N=3）为3.0x10-10 g/mL,相对标准偏差为1.2％ （n=11,ρ=1.0x10-8g/mL）.将该法用于药物中甲巯咪唑含量的测定,结果满意.同时。
