Fred Feyerherm

Rapid, Robust, and Sensitive Detection of 11-nor-Δ⁹-Tetrahydrocannabinol-9-Carboxylic Acid in Hair
Thursday, September 01, 2011
Testing hair for drugs of abuse has been practiced for over 50 years, due in large part to the ability to detect drug use over a longer period of time, as compared to other biological matrices, ... read more
Automated Chemical Ionization in GC-MS
Monday, January 01, 2007
Gas chromatography with mass spectrometric detection using chemical ionization (CI) has demonstrated great utility in a wide variety of application areas ranging from forensics to environmental to ... read more

Articles by Fred Feyerherm