摘要
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CoH<sub>2</sub>O<sub>2</sub>-8-羟基喹啉-5-磺酸（H<sub>2</sub>QS）体系,钴含量在3.7×10<sup>-7</sup>～2.5×10<sup>-5</sup>mol/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。
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.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1989年第3期302-304,共3页
Chemical Journal of Chinese Universities
关键词
钴
羟基喹啉磺酸
荧光光度法
Cobalt, Hydrogen peroxide, 8-Hydroxyquinoline-5-sulphonic acid, Fluorimetric reaction
