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james_jenkins
I would like to detect pontacyl violet 6R by GCMS. In full scan, i am not getting any peaks by using DB5 column. What is the best derivatization reagent to get the peak in GCMS.
abed
Hello everyone, I hope you can help me, I would like to know how can I create a report for the sequence (10 chromatograms) as a single excel file, I have an Agilent GC HP 5890, software: GC chemistation revision: A. 10.02 (1757)    best regards 
in Energy and Chemicals
james_jenkins
I am using an agilent 6890 split splitless injector with a dbwax to analyze 10% ethanol solutions for trace residual solvents such as acetonitrile and dmso.  Due to the massive ethanol peak compared to the other peaks, I cannot "see" the minor peaks.  What is the best way to handle this situation? 
raihankabir
Hi, which configuration would be perfect for analysis of Ethylene oxide  from cylinder gas with 7890B GC? Also EO residual solvents, dry capsule shell(gelatin) residual analysis.   Regards, Md.Raihan kabir
in Energy and Chemicals
james_jenkins
Dear Researchers I am Rizwan (Ph.D. scholar), researching the area of Fruit biochemistry and post-harvest preservation, As i am new in the field of GC MS, (as i want to do the experiment about the cuticle wax chemical composition and concentration), I would like to ask some questions about GC MS as i am in it: 1- What criteria should keep in… (Show more)
james_jenkins
Is there a reason why the preparation for Class 2 mixture C is not included in the procedure? I am wondering if this standard is necessary for residual solvents analysis as per USP <467>? Has anyone attempted to run this mixture?