By James on Tuesday, May 18, 2004 - 04:25 am:
We are currently experiencing mobile phase interferences, and are thinking about testing the various components in the mobile phase.
We are trying to work out which brand/quality of solvents and water are the most pure (looking at price etc.) but are unsure.
Does anyone have any adice on what to buy, we need H2O, MeOH, MeCN and P-2-ol. We are currently using HPLC grade from Fisher.
It would be interesting also to hear if anyone has had any problems with any of the fisher solvents , so we can narrow down our quest! :)
Thanks
James
By Anonymous on Tuesday, May 18, 2004 - 05:46 am:
I use VWR - they have been very reliable over the years. Give them a try. They have many grades to suit most applications and good specification data.
I have had problems (quality & delivery) with some other suppliers!!
HPLC Dave
By Anonymous on Tuesday, May 18, 2004 - 05:49 am:
The two best sources I have used are JT Baker and Burdick&Jackson (B&J). I have never in 20 years have a bad bottle from either of these vendors and the majority of the work I have done was at lower wavelengths (<225 nm). They get my vote easily.
Regards,
Mark
By James on Tuesday, May 18, 2004 - 07:48 am:
Great. Thanks guys. I've used VWR before, quite good in my opinion too. I've not heard of JT Baker and B&J before, but after checking out their websites, it looks like they are quite specialised. - Think I will give 'em a go.
James
By Renata on Tuesday, May 18, 2004 - 08:13 am:
JT Baker is great in my opinion, I used to work with it. But now I'm dealing with Merck products. I've never had a problem with them. Besides, Merck guarantee those that are HPLC grade are already filtered (0,22).
jtbaker catalog: http://www.jtbaker.com/catalog/index.html
merck catalog:
http://chemdat.merck.de/en/catalog/index.html
:o)
Renata
By syx_gf on Tuesday, May 18, 2004 - 06:01 pm: