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- Posts: 12
- Joined: Thu Dec 14, 2017 1:35 pm
Hi~ I am using Oasis HLB cartridges to extract my target analytes (pharmaceuticals) from wastewater samples. The recoveries for my target analytes are OK. But the problem is the eluates look too dirty in a color of dark brown or dark green. I just do not want my column and the UPLC-MS/MS receive such samples so just wanna know are there any purification methods recommended from you all. Actually I have already tried Envicarb (black carbon based), only 4 out of 9 analytes could be washed down for analysis.
Thanks for your attention.
Best regards,
Kenny WU