Is anyone familiar with the Waters U6K injector? I have a couple which I would like to use on a prep HPLC i am setting up but I have no idea how it works....
Thanks to everyone who replied. I did not know there was an injection port under the little button on the front panel, hence why I could not work out where...
There is anyone here that already did or know someone who did the calculation of isocratic retention time from starting gradients "without computers"? Of...
For anyone interested in career development issues, here is info on my new book. It can be ordered pre-publication from Springer and is on Amazon.com, too. ...
Dear Fabiano, the mathematical background is described in Snyders Book: L. R. Snyder, J. L. Glajch, J. J. Kirkland, Practical HPLC Development, John Wiley &...
matthias.kummer@...
Apr 14, 2004 7:43 am
1877
What are the solvents usually used for Nova Pak HR Silica columns ?...
Hello everybody, I am using a ESI LC-MS assay on an Agilent 1100 MSD to quantify a weakly basic opioid analog. I am presently using a mobile phase consisting...
I haven't seen a JCL6000 in a LOOOOOONG time. I used an XT class computer with an 8086 microprocessor. It never even had Windows 3.0 installed. I suppose it...
Do you know HPLC... how to troubleshoot and run the equipment? Are you looking for a new opportunity? This is a full-time position with full benefits, rarely...
Very good resource for all full-text articles on HPLC, GC etc. I found it is useful for me especially all in one place. http://pharmainfo.net/Topic27.html is...
I think Science Direct is the best info source for all publication abstracts (http://www.sciencedirect.com/) Best regards Franz ... Von: vege saisankar...
fm
fm@...
May 12, 2004 7:21 am
1884
separationsNOW.com has a dedicated HPLC channel with news, research and magazine articles and lots of other features. see http://www.separationsnow.com/hplc ...
Hi, To anyone who had been analysing catecholamines with HPLC-ECD, on average how many samples could you analyse per day, given the situation that amines...
I use an Agilent 6890 and HP 5890 GC running chemstation software (ver. A.08.03). I run sequences almost exclusively, and often get tired of entering the...
We are trying to locate a full service food analysis lab in Brazil to support some operations in that country. I have located some labs that perform...
Hurst, William
whurst@...
May 17, 2004 12:12 pm
1888
Dear Sir/Madam, I have one GC5890 II. It has a warn:Oven shut off. We have changed the oven fan motor, checked the fuses: F4 and F5, checked the oven heater...
Jing An
jing.an@...
May 17, 2004 6:05 pm
1889
I am also tired of the same. If anyone has the answer, please let me know how to do it!!! ... From: Randy Raymond To: chrom-L@yahoogroups.com Sent: Thursday,...
Jing, I have had a similar problem previously. I do not know if your problem is the same, but the problem on our 5890 GC was the stepper motor on the flap...
Steyn, Jaco (JA)
jaco.steyn@...
May 18, 2004 9:21 am
1891
... Medal ... (ISCD-16, ... Chirasil-Dex) ... paved ... of ... Bill Suits Co Chair MARM 05 www.marmacs.org ... --< Chiralchrom: A list for Chiral Separations...
What about a problem with the door latch? I don't remember if the 5890II will show a oven shut off of the door is unlatched. I think it will shut off the...
I have been using gas chromatography for qualitative analysis of samples for some time now. I am currently using it for quantitative analysis of a mixture of ...
I would recommend that you complete a recovery experiment using a single internal standard. If you do not obtain accurate results for all of you analytes then...
the Shifflets
shiffty@...
Jun 1, 2004 9:56 am
1897
Dear ALL, can someone tell me what is the ideal "cleaning period" and ideal "solvent" for a C18 column. My mobile phase consists of acetonitrile (acid added). ...
With all methods there may be slight differences in cleaning the column but with the method that you described I would try the following: 1. Wash column with...
the Shifflets
shiffty@...
Jun 2, 2004 9:56 am
1899
Hi. I am looking for a refurbished or used GC in good condition. GC should be equipped with TCD and FID detector in series as well as porivision for ...
Hi, we are trying to find a new home for a gc (purchased in 1996) from Ai Qualitek Cambridge UK. The GC is kept in Sheffield (UK). It has both FID and ECD,...
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