After posting a recent story on our Facebook page (link to our page) on the shortage of liquid helium and some scientists think using helium to fill party balloons is wasteful (link to story), I recalled a couple of very popular webinars we did last year on moving from helium to hydrogen as a carrier gas in gas chromatography analysis of water as per U.S. EPA methods to save on escalating helium costs for laboratories.
By the way, an interesting titbit on helium: not only is it non-renewable but it is also essential in medical imaging, rocket engines, among other uses.
Both webinars are now available on-demand and without registration, and, I thought our blog readers would enjoy listening to them back-to-back.
U.S. EPA Method 8270 (link to method PDF) involves identification and quantitation of more than 120 semi-volatile organic compounds (SVOCs) in water that have varying chemical structure, polarity, and volatility. The diversity of the analytes in this method presents particular challenges when migrating from helium to hydrogen carrier gas.
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Click the webinar title above to access this webinar (on-demand and without registration) and listen to our experts discuss how to use a fully optimized method for migration to hydrogen carrier gas including how to meet the DFTPP tuning criteria as required by the method. The presentation includes a case study for the fast GC-MS analysis of SVOCs.
The discussion also covers the key differences in the physical properties of helium and hydrogen as they apply to GC-MS and plus troubleshooting tips when hydrogen as carrier gas.
In moving from helium to hydrogen, environmental laboratories are concerned about hydrogen safety, the U.S. EPA’s DFTPP and BFB tune requirements, data integrity, reproducibility, accuracy, change in QA/QC criteria, and, last but not least, re-training laboratory operators. The experts in the webinar address all of these concerns, and, also, present a fast, validated GC-MS method for the analysis of VOCs and SVOCs using hydrogen carrier gas for U.S. EPA Method 524 and U.S. EPA Method 525 (both links to method PDFs).
As above, click the webinar title above to access this webinar (on-demand and without registration) and listen to our experts discuss best practices, key differences in the physical properties of helium and hydrogen as they apply to GC-MS, and troubleshooting tips when using hydrogen as carrier gas.
Thoughts/comments? Or, questions that were not raised by the participants? Enter them in the Comments box below. We would like very much to hear from you!