Question

what is role of organic ligand in spectrophotometric

Answer 1

A violet coloured complex was developed when cobalt metal reacts with ninhydrin at pH 8.2, using sodium acetate buffer solution. Absorbance of the complex was measured at 395 nm. Various factors, such as volume of the ligand used, solution pH, stability of the complex with time and interference of other metals, which effect the complex formation have been studied in detail. Present developed method can be used for the spectrophotometric estimation of cobalt with ninhydrin complex. The method is simple, selective and cheap for the determination of cobalt in very less time.

Keywords: Spectrophotometric estimation, Cobalt, Ninhydrin

Answer 2

In chemistry spectrophotometry is a quantitative measurement of the reflection or transmission properties of a material as a function of wavelength.