Abstract
There has been voluminous literature on the separation and analysis of different porphyrins, such as metalloporphyrins, biological, geological porphyrins and the porphyrin derivatives. The determination of these porphyrins is useful and significant in diagnosis of diseases, the study of deposition of sediments and the geology of environment. The present review reports the recent developments in the determination of porphyrins in physiological specimens by liquid chromatography.