GC-MS

GC-MS: Gas chromatograph-mass spectrometer

Brand: Varian CP 3800 GC, Varian 4000 ion trap MS

Software: Varian WorkStation

Capabilities: internal, external, and hybrid chemical ionization configurations; mass range 10 - 1,000 u with 0.1 u precision; liquid, headspace, SPME injection modes; Chromatoprobe for solid samples

Accessory: CombiPal autosampler

Practical use: This instrument has most recently been used to sample the molecules that are off-gassed by different materials, such as polymers and glues, as they age.

Contact: Rui Chen