Cyanocobalamin by HPLC?

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Robin Joshi

cyanocobalamin i.e. Vitamin B12. There are so many methods in literature. Please find attachment for following papers.

Another paper.

Małgorzata Jaworska

With PDA detector you can compare UV spectrum with reference - it is sufficient indentification procedure. Example spectra can be find here:

http://omlc.ogi.edu/spectra/PhotochemCAD/html/036.html

Asad Raza

just determination of cyanocobalamin is very simple by HPLC, as sone paper are proposed by Robin Joshi..are very good.

but actually its very difficult to differentiate between cyanocobalamin and mecobaalmin simultaneously.??

Roberto Arrubla

Thanks Asad and Robin