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Vitamin A

Discussions about sample preparation: extraction, cleanup, derivatization, etc.

2 posts Page 1 of 1
Dear Friends,
I am tried the determination of vitmain A in [color=#0040FF][b]Paparika oleresins[/b][/color] by using HPLC with Normal Phase. i am followed by the saponification method, in liquid liquid extraction (ie, pet-ether and diethyl ether) stage the oil is completely soluble, so finally get the whole oil. so any refer the determination method or clarify my diffcults.
While,saponification should be to increase KOH.
2 posts Page 1 of 1

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