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How to prevent the sequence method to be up-dated after every sample run of my sequence table

Question asked by pziel on Sep 28, 2017
Latest reply on Oct 6, 2017 by pziel

When I start a sequence using openlab CDS the method is copied from the methods directory to the sequence directory to create a sequence method (I am fine with that),

but every time a sample in the sequence(table) is analysed, the sequence method is over-written and I do not want that!

According to page 29 of "OpenLAB CDS ChemStation Edition C.01.03 Tips and Tricks for GC Customers"  this only happens after data analysis, but switching data analysis of in the method doesn't prevent the sequence method to be up-dated.

The reason I don't want the original method to be updated during a run is that at the end of my analysis-run the flows are not yet stabile and the actual flows are copied into the sequence method and used with the next analysis run, resulting in retention time shifts and in integration differences.

 

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