By Anonymous on Monday, September 22, 2003 - 07:56 am:
Any idea about Urea assay by RP 18 hplc column in cream, having conc. of 12.5 mg/g
Thank you in advance for any help.
By A.Mouse on Monday, September 22, 2003 - 02:54 pm:
Won't work with reversed-phase. Try HILIC!
By valentine wascotte on Friday, October 10, 2003 - 02:49 am:
"In the analytical methodology for the determination of urea: current practice and future trends" you can find one method by HPLC in cosmetic cream
The reference is P. Dallet, L.Labat, E.Kummer, J.P.Dubost, J. Chromatogr. B.: Biomed. Sci. Appl. 742 (2000)447