球烯C_(60)与锌酞菁形成电荷迁移络合物的研究

The system of ZnPc-C60 ln speclal mixed organic solvents has been studled by UVVis, fluorescence and laser Raman spectra. The results prove the existence of a chargetransfer complex (CTC) by the lnteractlon between ZnPc and C60 The molar ratio of ZnPc/C60 in CTC is 2: 1. The formation equilibrium constant(K) was determined at 25 C. Mea-surements of photovoltaic effect show that ZnPc-C60 CTC leads to a rernarkable enhancementof photosensitivity comparing to that of ZnPc.

氯冉酸电荷迁移分光光度法测定头孢噻肟钠

建立了一种利用电荷迁移反应简便准确地测定头孢噻肟钠的分光光度法。在乙醇介质中，头孢噻肟钠与氯冉酸形咸稳定的荷移络合物。该给合物组成为2：3，在可见光区530nm处有最大吸收。药物浓度6～360μg／ml遵从吸收定律。经统计检验，本法与法定方法无系统误差。样品加标回收率为97．0％～105％。