Chromatography Forum

Posted: **Tue Sep 05, 2006 10:55 am**

Hello everybody

I know that there is a lot of references that set methods using SPE to extract morphine, M3G and codeine from plasma. I am looking for a LLE method.
Do you have any reference or experience ?????
Thank you.
Maristela

Posted: **Thu Sep 07, 2006 2:34 am**

Honestly, why trying to figure out a functioning LLE procedure if SPE works so well for plasma and urine.

Please look at : J. Liqu. Chrom. & Rel. Technol. 24(9), 1353-1364 (2001)!

Posted: **Mon Sep 11, 2006 12:50 pm**

Just because of the price of SPE columns.
I will do it anyway if I could not find any other LLE option.
Thank you

Posted: **Tue Sep 12, 2006 2:08 pm**

Hi,
You may have a look at undcp site:
http://www.unodc.org/unodc/en/publicati ... pport.html
At that page you can find:
Recommended Methods for the Detection and Assay of Heroin, Cannabinoids, Cocaine, Amphetamine, Methamphetamine and Ring-Substituted Amphetamine Derivatives in Biological Specimens

Hope this helps

Chromatography Forum

morphine and LLE

morphine and LLE

undcp