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- Posts: 5
- Joined: Thu Sep 02, 2010 8:16 am
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.