CEN Webinars: Stronger Bonds

From Helium to Hydrogen:
GC-MS Case Study on U.S. EPA Methods 524 and 525

 

Thursday, March 21, 2013

USA 11:00 a.m. EDT / 10:00 a.m. CDT / 8:00 a.m. PDT / 15:00 GMT

 

Who should attend?


• GC-MS operators, analysts, and technicians of the contract and environmental labs seeking to migrate from helium to hydrogen in the GC-MS analysis of water.

Speakers


Alexander N. Semyonov
GC-MS Product Manager



Jessie Butler
Senior GC-MS
Applications Scientist


Moderator


Britt E. Erickson, Ph.D.
Senior Editor
C&EN
 


Overview:


Join us for the next webinar in the series From Helium to Hydrogen: GC-MS Case Studies. The continuing helium supply shortage crisis prompts more and more GC-MS laboratories to switch from helium to hydrogen carrier gas. While trivial with simple stand-alone GC methods, this transition could be a challenge for GC-MS, especially for the laboratories performing drinking water testing regulated by the U.S. Environmental Protection Agency. In this respect, the top concerns amongst the environmental laboratories are: hydrogen safety, meeting target DFTPP and BFB tune requirements, data integrity, reproducibility, accuracy, change in QA/QC criteria, and re-training the GC-MS operators and adjusting their practices and expectations.

We will present data of fast GC-MS analysis of Volatile and Semi-Volatile Organic Compounds (VOCs and SVOCs) developed, performed, and validated for U.S. EPA Methods 524 and 525 utilizing hydrogen carrier gas. We will discuss key modifications to both GC and MS set up in hardware and methodology which are necessary for successful migration to hydrogen carrier gas. Target tunes on DFTPP and BFB to satisfy EPA requirements will be detailed. The final, optimized Method 524 and 525, fully migrated to hydrogen carrier gas, will be presented and compared to traditional helium methodology.

Key Learning Objectives:


• Learn the key differences in the physical properties of helium and hydrogen as they apply to GC-MS

• Acquire troubleshooting skills and knowledge about using hydrogen as carrier gas in GC-MS

• Learn the best practice of analyzing VOC s and SVOCs in water, including fully developed, tested, and validated U.S. EPA Method 524 and 525

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