I need a explanation of 2 terms I found in the Chemstation Software.
Injection Repetitions and Holdup Times.
I couldn't find it in the Open Labs Help.
Thank you for the clarification. The holdup time for a column is the time it takes for an un-retained peak (for a compound that does not interact with the column's stationary phase) to elute from the column after injection.
I added some tags to post to increase its visibility.
Would you mind providing us with the revision of OpenLab CDS ChemStation that you are using? More context for the terms you are asking about would also be much appreciated.
For 'Injection Repetitions', I am interpreting that to mean making multiple injections from the same sample vial. This can be done in the sequence table using the Inj/Loc (Injections Per Location) column.
I am not quite sure what you mean by Holdup Times. There are a few different locations in the software that use "Hold Times" such as in the oven temperature section of a GC method or in a method's integration events.
I am using Open Labs Version 2.1.
The holduptime I am talking about is just under the velocity in the column tab. I don't see it in the oven section at all. Its from an old Chemstation Software.
I just want to understand what it exactly mean.
Sorry to revive this topic..
1 last question.
In the old Chemstation I found " Injection Repetitions = 1 "
So it means that its Disables.
I Repetition = 1 Injection in total ? For Example Vial 1 got Injected only once, or twice ?
Sorry for the delay, I must have missed this when you posted it.
In ChemStation I am not familiar with a field called Injection Repetitions. In the sequence table there is an "Inj/Loc" column (short for Injections per Vial Location). This is where you would designate how many injections you want to be made for that line in the sequence. If you have a value of 1 in this field then the sample will be injecting just one time.
Ok, good to know.
Thanks for the Info
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