SWAFS: Chromatography of Beer & Urine.

liner and beer bottle

Restek Premium Liner & Saint Arnold Beer

This year Keith Irwin will be attending the Southwest Association of Forensic Scientists (SWAFS) the first week of October to give a presentation on Bath Salts, Synthetic Cannabinoids and he plans on handing out a few cold ones. How does the Innovations laboratory fit into this picture?  First Amanda Rigdon put together over a year’s worth of analytical work into this presentation using our API 4000 LC/MS/MS & much less impressive we did a quick analysis of beer for a Restek beer label. After running the beer sample by GC/MS using an Rxi-1MS and a Restek Premium liner; I began to wonder why it’s important to understand congeners in alcohol. From literature it became apparent that people drink beer for the ethanol content; oh yes and taste. Beer also contains smaller amounts of biologically active compounds (congeners) that contribute to taste and smell. Scientists now believe that some of these congeners may contribute to the beverages’ intoxicating effects as well as the after-effects; the dreaded hangover. Alcohols are metabolized in the liver by the enzyme alcohol dehydrogenase and aldehyde dehydrogenase. The most studied congener in spirits is methanol since the products of metabolism; formaldehyde and formic acid are toxic. Gas chromatography is used in conjunction with a concentration step, such as Solid Phase Micro Extraction (SPME) or Headspace.The analysis of Beer by direct injection GC/MS

Amanda Rigdon’s Blogs:   http://blog.restek.com/?author=3

Spice Blogs    http://blog.restek.com/?s=spice

Cannabinoids

http://blog.restek.com/?s=cannabinoids

Southwest Association of Forensic Scientists   http://www.swafs.us/

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