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The separation of free dicarboxylic acid porphyrins using thin-layer and paper chromatography

✍ Scribed by R.V. Belcher; S.G. Smith; R. Mahler; J. Campbell

Publisher: Elsevier Science
Year: 1970
Tongue: English
Weight: 723 KB
Volume: 53
Category: Article
ISSN: 1873-3778
DOI: 10.1016/s0021-9673(01)98468-7

No coin nor oath required. For personal study only.

✦ Synopsis

Mixtures of protoporphyrin, deuteroporphyrin, haematoporphyrin, pemptoporphyrin and mesoporphyrin can be separated as free acids on talc thin-layer chromatography plates by developing them with a mixture of ethanol-2,6-lutidine-water (30:3:67) in tanks containing an atmosphere saturated with ammonia vapour. Monoacrylic monopropionic deuteroporphyrin ("S/411" porphyrin) can be separated from coproporphyrin using this system. The same mixture of two-carboxyl porphyrins can also be separated on Whatman No. I chromatography paper by developing with pyridine-0.2 M sodium borate buffer pH S.6 (I :g) by either ascending or descending techniques.

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