Restek at BFR2016 in Toronto – APGC of Brominated Flame Retardants Using Helium and Nitrogen Carrier Gases

In only a few short weeks, I will be giving a presentation on the analysis of brominated flame retardants at BFR2016 in Toronto.  My colleagues and I used an atmospheric pressure ionization mass spectrometer with gas chromatography on an Rtx-1614  (15m x 0.25mm x 0.10µm) column to look at polybrominated diphenyl ethers (PBDEs) in various samples.  First though, we explored optimizing the chromatography for speed, while using efficient helium carrier gas.  But we also looked at employing nitrogen carrier gas, since the APGC instrument we used can easily handle nitrogen carrier with no loss in sensitivity like would occur with the typical vacuum-pumped electron ionization MS system.  By employing a selective GC column like the Rtx-1614, you can get the same analysis times (and PBDE retention times!) for helium and nitrogen carrier gases and still meet necessary separation criteria (e.g., separation of Br4 PBDE congeners 49 and 71 as per EPA Method 1614).  Both helium and nitrogen approaches were facilitated by the EZGC Method Translator and Flow Calculator.

Check out the abstract and the preliminary program and I hope to see you at the conference.

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