Dear all, I am trying to find a GC column to analyse residual solvents from pharmaceutical substances. The products and its concentration are: Methanol -...
Hello Sheyla, I found the following elution order data for three commonly used capillary column phases: DB-624, DB-1 and DB-WAX. Your analytes of interest...
jason_ellis@...
Oct 2, 2003 8:51 pm
1712
The OVI test I <467> should work well. OVI I uses a USP G27 phase (DB-5) but you can easily substitute G43 phase (DB 624). That test does not look for...
The Shifflet's
shiffty@...
Oct 3, 2003 9:43 am
1713
Should not be a problem. Have you looked into a PoraPLOT column? An 5% PMS might work as well. I would think that EP, USP or JP will even have procedures and...
Diego Zurbriggen
Diego_Zurbriggen@...
Oct 4, 2003 9:05 am
1714
Dear all, I am currently evaluating a method for gluconate using Bio-Rad Aminex 87C column (7.8 x 300 mm) for our product. The chromatographic conditions are...
Hello, I will like to determine galantamine and separate it from its metabolites. I have an HPLC with UV detector. Can someone give me a hand? Best regards: ...
Hi colleagues, can someone help me with basics about derivatisation in gas chromatography? I need papers and some figures about concepts, reactions types,...
Harking back to an older time and an older way -- Does anyone have a TTL card that fits into a HP controller, Model #18594B -- this is the controller that runs...
This question was posted some time ago, but it describes the exact problem I am having with my HP7673 turret. Has anyone else had this problem? If so, I...
I have just finished a website search for any information about a gc/ms method to perform theraputic monitoring for the antiepileptic drug, oxcarbazepine. I...
Hi, has anybody used RI 2000 F detector for GPC? I have a this detector in our lab but I never used it before and recently I am trying to figure out how to use...
hi, i am looking for resources and opinions on the techniques to separate chiral amino acids and derivatives by HPLC. what i need is a method development good...
In a previous post, Lignin raised this issue, "... since the manual and software is too few instruction and actually I say software looks stupid ...". The...
Hi Everyone: I have noticed on using a guard column (cartridge type) that the peak height decreased by 20%. Is that unusual? Previously, I have been using a...
... Constructive criticism - good. Venting frustrations - fair to middling. Mentioning specific companies - possibly bad. I'm not sure what the 'laws' are...
after I used other software to collect data, the detector works pretty good now. but I still need to get software for analyzing the data (for SEC). anybody...
Hello everybody We are company located in Kiev, Ukraine. We have our laboratory where we perform HPLC analysis of aminoacids on Agilent 1100. We have methods...
Hi, I have not noticed that great of an effect on peak height to be caused by the introduction of a precolumn. Did the peak shape change at all? I would...
The Shifflet's
shiffty@...
Oct 25, 2003 10:16 am
1731
I would suggest you contact Dr. Imre Molnar in Berlin: Dr. Imre Molnar Molnar-Institut Schneeglockchenstr. 47 D-10407 Berlin, Germany Tel: +49-(0)30-421559-0 ...
We are looking for a Product Manager Chromatography Data Systems in Munich, Germany. We expect: Indepth Knowledge and expereince in HPLC technology (soft- and...
Dear All, We are using Jeol make Mass Spectrometer model D300. Lately, the peak shape of PFK standard being displayed by the instrument has become distorted....
Dear all, I am using Bio-Rad Aminex 87C column to detect some sugars, but I couldn't get good seperation for several peaks. I use water as mobile phase at 85...
I recently inherited an HP 5890II GC with two split/splitless injectors and both a 5971 MSD and an FID detector. The hard drive on the computer that came with...
Dear Friends, Could any body help me to explain what is the difference between guard column and precolumn? with best regards Wulan ... Do you Yahoo!? ...
In a message dated 10/31/2003 8:39:12 AM Eastern Standard Time, asrimnwulan@... writes: Dear Friends, Could any body help me to explain what is the...
EHeilweil@...
Oct 31, 2003 11:59 pm
1738
Dear members of this list, I need information about Canada, mainly Quebec. From INTERNET I get something but it is not enough for me. I am writting to you in...
Tequila2
tequila2@...
Nov 2, 2003 1:37 pm
1739
Hi all, I am in need of an Amersham SMART HPLC. Unfortunately Amersham have spopped production. Please email me if you have one for sale regards Martin Steel...
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