Friends, Does any body has any experience on working with Optimum Performance Laminar Chromatography? I want to know how good it is for analytical & prep work...
I am try-ing to do a calibration on my chemstation ver. 9.0 and don't really understand the tutorial that is online. I want to do a calibration that has more...
Hi there, I am interessted to find a splitter for a LC-MS application and came across the adjustable QuickSplit-splitter from Presearch. Does anyone has...
I have a new Finnigan Surveyor PDA for sale regards Martin Steel...
Martin Steel
Martin.Steel@...
Jan 14, 2004 7:59 pm
1804
Is anyone looking for a personal (portable) micro arrayer? or does anyone know anybody looking for one? There is a SpotBot personal micro arrayer (by ArrayIt)...
Dear friends I am trying to separate compounds using RP18 as well as NH2 column from aqueous extracts but there is difficulty in separation, please guide...
Ok, Maybe this isn't a chromatography problem but perhaps someone can help anyway. We have a Varian 3400 GC coupled to a Finningan INCOS mass spec operated by...
Trends in Sample Preparation 2004 Seggau-Castle, Seggau, Styria, Austria, July 4-7, 2004 Dear Listmembers! We'd like to announce the 2nd conference "Trends in...
Someone here already did the calculation for MW, MN, MZ in GPC without any softare? Is this possible? Any tip about a good software (most software mentioned in...
I had an intermittent problem with one of my HP 7673A autoinjectors last year, and I have finally tracked down the solution. I'm posting it here in case it...
My laboratory has recently purchased a new UV-VIS detector for HPLC. It works with 2 wavelengths, working and reference. The rest of detectors we have work...
You're wright when you told that the reference WL is subtracted from the working WL. It is what happens. About how to choose the reference WL, usually you look...
dear group.., is there anybody here working on 3-nitrotyrosine by HPLC?? __________________________________ Do you Yahoo!? Yahoo! SiteBuilder - Free web site...
SeparationsNOW.com (http://www.separationsnow.com), Wiley's chromatography portal, has launched a series of new monthly online chromatography magazines. In our...
SeparationsNOW.com is carrying a free downloadable book chapter on sample preparation techniques for analytical chemistry. In this free chapter Somenath Mitra...
What type of detector are you using? We have an Agilent Diode array detector in our lab and we talked over this reference wavelength issue at length. In my...
shiffty@...
Jan 31, 2004 11:06 pm
1816
Hi, Try Waters.com they has a good software for the GPC. ... _________________________________________________________________ Get a FREE online virus check...
Thank you for all the answers. I'd like to add that I'm talking about a PerkinElmer Series 200 Diode Array Detector. I don't have the choice of setting...
Hi eveybody, My name is Sergio Bodini and I work in Natural Products extraction and analysis I intend to buy a LC-MS. Could you give me some advices about the...
Hi, I need to buy an HPLC System. There is someone who works with HPLC systems from Thermo Finnigan (TSP, Spectra System, not Surveyor)? With DAD and...
Dear Friends, I am looking for the following spec hardware for Prep work. Will appreciate if anybody inform me about the best and cost effective source for...
One of my corcerns are unknown substances that may arise along stability studies. You can only know the UV spectrum of an unknown substance once it has been...
Dear friends, well i wnat to know about MS compatible buffers which are generally in use. becoz right now i am developing mehtod by using acetate buffer with...
... Don't use phosphates. Some labs report results with phosphate buffers present, but they are at *very* low concentrations. Nonvolatile buffers will form...
David Bostwick
david.bostwick@...
Feb 11, 2004 8:17 pm
1826
OK, I have a silly question. The HRMS that I am using has a parameter, sec / dec, that I cannot find a definition for. I am used to things being in terms of ...
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