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extraction - fipronil product
Posted: Wed Nov 10, 2010 1:59 pm
by lusi
Does anyone have a reliable method for cleaning up a fipronil product? We tried one using florisil and acetonitrile. However, we did not get a possible fipronil peak using the GC. Our MS is down, so...Really looking forward to a reply.
Posted: Sun Nov 14, 2010 10:51 am
by Consumer Products Guy
We haven't done by GC; are you using FID or ECD for that?
We assay for fipronil using HPLC, a test method we validated.
Posted: Mon Nov 15, 2010 6:40 pm
by lusi
Our HPLC is not set up. Anyway we used a ECD method - we have not been able to validate it and our MS is down...But we were forced to get some results. Anyway the standards did show a consistant peak around 18mins or so.
Re: extraction - fipronil product
Posted: Thu Mar 10, 2011 8:05 pm
by Don Shelly
QuEChERS dispersive SPE clean-up with magnesium sulfate and PSA works well when the Fipronil is in acetonitrile.
Re: extraction - fipronil product
Posted: Fri Mar 11, 2011 12:45 pm
by lusi
Thanks Don Shelly
Re: extraction - fipronil product
Posted: Thu Apr 21, 2011 2:38 pm
by lusi
Could you please provide a specific method?
Re: extraction - fipronil product
Posted: Thu Apr 21, 2011 2:44 pm
by Don Shelly
If you could please send me an email I will reply with a method. My email address is
dshelly@unitedchem.com
Re: extraction - fipronil product
Posted: Thu Apr 21, 2011 2:59 pm
by lusi
my personal email is
allsaintsbaby@hotmail.com Thanks for the reply.
Re: extraction - fipronil product
Posted: Tue Apr 26, 2011 5:57 am
by H.Thomas
Re: extraction - fipronil product
Posted: Thu Apr 28, 2011 5:44 pm
by lusi
Thanks so much for all your help.