Interlaboratory Trial: Interlaboratory trial on quantitative TLC/HPTLC

Hydrophilic Vitamins

“…Some food plants, edible seaweeds and microalgae, however, contain large amounts of B, 2 , although in what appears to be inactive B 12 compounds, so they may not be bioavailable to mammals (15). To evaluate whether some edible shellfish and algal foods contain true B 12 or inactive corrinoids, some B 12 compounds were purified and characterized using silica gel 60 TLC.…”

“…The quantitative analysis of thiamine hydrochloride (vitamin B,) using HPTLC on silica gel plates with two different mobile phases was elaborated (2). After the TLC separation, vitamin B!…”

“…Structural formula of vitamin B,2 and partial structures of vitamin B 12 compounds. The latter show only those portions of the molecule that differ from vitamin B 12 .…”