【摘要】 <正> 以8-羟基喹啉-5-磺酸测定金属离子的荧光反应已有报道。我们研究了CoH₂O₂-8-羟基喹啉-5-磺酸（H₂QS）体系,钴含量在3.7×10^-7～2.5×10^-5mol/L时,该方法能给出线性响应,试验了多种离子的干扰情况,拟定了植物样品中微量钴的测定方法,初步探讨了反应机理。更多还原

【Abstract】 Based on the reaction of Cobalt with 8-hydroxyquinoline-5-sulphonic acid, a simple, sensitive and selective method for the fluorimetric determination of Cobalt is described. Its fluorescent species has excitation and emission maxima at 370nm and 470nm, respectively. Its fluorescent intensity shows a linear relationship in the range 3.7 × 10-7-2.5 × 10- 5mol/L. The method is applied to the determination of Cobalt in some substances. The nature of the reaction is discussed.更多还原