用四(4-羟基苯基)卟啉和三阶导数光度法同时测定铅、锌、镉的研究

Study on the simultancous determination of lead, zinc and cadmium with T(4-HP)P and 3rd-order derivative spectra

研究了四(4-羟基苯基)卟啉[T(4-HP)P]与铅、锌、镉反应的导数光谱行为,提出以咪唑和8-羟基喹啉作催化剂同时测定以上三种组分的高灵敏三阶导数光度法。

In this paper the derivative spectral behavior of the reaction of lead, zinc and cadmium with meso-tetra (4-hydroxyphenyl) porphine (T(4-HP)P)has been studied, and a highly sensitive. third-order derivative spectrometric method, using imidazole and 8-hydroxyquinoline as catalysts, has been developed for the simultaneous determination of the three-comp(?)ment mixture.