论文部分内容阅读
钛在10-+-碳烯氧肟酸(UHA)-氯化锂介质中有灵敏的阴极化导数波,峰电位-1.66伏(VS.SCE),峰电流与钛离子浓度在4.0×10~(-9)～4.0×10~(-7)mol.L~(-1)范围内呈良好的线性关系。读者以此为基建拟定了钢中微量钛的分析方法。文中对极谱的反应机理、电极过程作了讨论,确证题示络合物组成Ti(I V):UHA=1:2,络合物稳定常数K_稳=8.1×10~(-12),本方法灵敏度较现行方法高约两个数量级,干扰少,简便,有推广应用价值。
Titanium has sensitive cathodic derivative wave in 10 - + - alkenyloxamic acid (UHA) - lithium chloride medium with peak potential of -1.66V (VS.SCE), peak current and concentration of titanium ion in the range of 4.0 × 10 ~ (-9) ~ 4.0 × 10 ~ (-7) mol.L ~ (-1). Readers as a basis for the development of steel in the analysis of trace titanium. In this paper, the reaction mechanism of the polarography and the electrode process are discussed. It is confirmed that the complex composition Ti (IV): UHA = 1: 2, the stability constant of complex K_ stable = 8.1 × 10 ~ (-12) The sensitivity of the method is about two orders of magnitude higher than the current method, less interference, simple, and has the promotion and application value.