Thin-Layer Chromatography of Tetraphenylporphin and Its Metal Complexes

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Abstract
Petroleum crudes contain metal porphyrins which are known to poison catalysts when the petroleum is subjected to a catalytic hydrodesulfurization. During the course of our hydrodesulfurization studies, some preliminary investigations on the chromatographic separation of metal porphyrins were carried out, leading us to consider that a thin-layer chromatographic separation is superior and less time-consuming as compared with the paper chromatographic method. In the present note we shall report such a thin-layer chromatographic method with respect to the separation of synthetic tetraphenylporphin and its metal complexes.

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