Masshunter Quantitation EPA8082 PCB Aroclor integrations with shared peaks

Masshunter Quantitation 12.1

We are using the Agilent-described method for Aroclor analysis with compound grouping and concentration sum math. I have also tried Response sum and average.

This works great if we are only analyzing Aroclors 1016 and 1260 which share no peaks. However, when looking at the full list (1221,1242,1254, etc.)  some of these have 3-4 peaks in common and therefore there will be a "hit" and associated concentration for the compound when not all 5 peaks are present in the sample. We overcame this in Chemstation by having separate methods for 1016/1260 and all of the rest of the congeners. And also we could QDelete the total compounds.

How can we change the method so that if any of the 5 peaks are missing then it will call the specific Aroclor as Non-detect? As it stands now, we still need to manually zero out many of the congeners because they had hits on 1-4 of the peaks but were not really in the sample. And you can't 'zero out' a compound math peak, so we have to go in and delete all of the detected peaks in each congener.

Thank you for your help,

Ryan

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