Chromatography Forum

Hello
We are using chemstation openlab in our lab and our raw data are saved into ecm. After reprocessing the data a new ecm version is created. If more reprocessings are performed, more versions will appear. How can we document all the changes that we made since the first version? The audit trail is not sufficient. Thanks!

You dont need to document the changes. It is already recorded by various audit trails.

Check sequence method audit trail, sequence audit trail(if you have latest Chemstation), instrument audit trail, and OL audit trail.