Dear everyone, I used a Shimadzu HPLC instrument until I got a problem recently. I found a displayed message " leakage error" on my pump system during I'm...
Irawan W. Kusuma
kusuma_iw@...
Feb 1, 2005 1:22 pm
2043
I am assisting to recruit a Quality Control Scientist for a biochemical company located in Torrance, California. COMPANY: They are an international,...
Thanks for suggestion and opinion. I'll check again and try to follow your suggestions. Additionally, I used two different columns and even only using MeOH for...
Irawan W. Kusuma
kusuma_iw@...
Feb 2, 2005 11:35 am
2045
I need some ideas to a m/z 146.9 that I got from APCI MS/MS....As I'm not the owner of the equipment I can't do the MS/MS of this peak at the moment... It's...
Dear chrom-l members, I have interst in palm oil research. Would you mind to help me looking for some information or journal related to this research ?.... ...
Dear All, I was wondering if anyone could walk me through the steps to validate an HPLC method. What characteristics have to be met in order to deem a method...
You could visit the ICH website (www.ich.org) and FDA (www.fda.org) and download the protocols and instructions about the validation of chromatographic...
Does anyone have any experiences on running BSA through an anionic-exchange column of HPLC? Or do you know what kind of buffer should be used?? Thank you so...
Dear chrom-l members, I have interst in palm oil research. I have trouble in analysis of some compounds contained in its palm oil. Would you mind to help me...
Do you have some review or paper (in pdf or doc) about APCI technique ? I'm a doctorate student from Brazil and I've done some analysis in a micromass APCI...
dear members of the list, ı have some problem about vitamin detection in feed and food samples and looking for an lc-/ms/ms method for my matrice if any of...
Hi All, I am looking for to draft HPLC pre-run and post run criteria.I need input about what to include and how much to include? For example, Instrument...
Hello, guys....Does anyone has Shimadzu SPD M10A-VP database with UV spectra from flavonoids or something ? It's part from Shimadzu HPLC systems......I have...
Need UV spectra database ! Hello, guys. I´m Roberto Chang, doctorate student and teacher at Brazil at Uberlandia Federal University...I study propolis (bee...
Just to tell you that changuinho2000 and chang are the same person (Prof. Roberto Chang from Brazil), but using different email addresses....I will atend in...
I can only help with regards to caffeic acid. Here's the UV spectrum I obtained for caffeic acid as the product of alkaline hydrolysis of chlorogenic acid: ...
I dont know if I'm not receiving the messages or it is just cause nobody is answering the messages ? Please post your doubts and thoughts....that's why groups...
Dear members of this forum, I need your help in order to get two articles will be very important for my work because I have to start to validate any techniques...
tequila2@...
Apr 8, 2005 12:34 pm
2061
Can any body help in estimation of 2- deoxy glucose (assay and related subtances ) by reverse phase chomatography. srinivas Yahoo! India Matrimony: Find your...
I know that TMS artifacts occur at m/z 205 due to re-arrangement of 3 close TMS groups (generally in sugars), however, I can´t find the reference where I read...
Dear Friends I also need info abot an UV-Vis Spectral Data Library, and it must be printed. I´ll be gratefull for help. Thanks in Advance, Arthur Nascimento...
To the mass spectroscopyst.... Does anybody has the retinal and nor-retinal and nor,nor-retinal mass spectra ? Thanks in advance.....can be a paper or pdf or...
Dear member of this forum Does anyone has experience on Cr anlysis using HPLC? I used to work on Cr-complex by mixing Cr(III) with EDTA and then heat the...
Does anyone have UV-VIS Spectral Data for the following compounds ATP ADP AMP IMP NAD NADH NADP NADPH Thanks in advance -=>Eric Eric Hatch Assoc. Research...
Does anyone know the molar absorbtion coefficient of ochratoxin A in acetonitrile or a place where I can find those data? Thank you in advance. Stefano Stefano...
List users: Can anyone provide advice on a HPLC method to separate: Mannose Sucrose Glucose Fructose Mannose Phosphate (we assume there are no other sugar...
Matthew.Lee@...
Apr 26, 2005 11:33 am
2069
Hi, I work in QC, and it has always been my practice to alter processing method parameters to the demands of the particular run. In fact, almost every...
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