In ChemStation, you can edit a wrong sample name, comments and dilution factor via single sample header edit or sequence processing. Is there a Mass Hunter equivalent? MH stores that information in the "sequence.xml" file. When you add samples into a batch it takes the information from the "sequence.xml" file. You can edit some fields in the batch but not the sample name field. During this edit process, only the information in the batch is edited and not the original sample data. Just in case this information is needed. I have acquisition version B.07.0+ SR 1 and quantitative version B.09.00.