Attachment 2 Salient Characteristics.pdf

The Triple Quadrapole Gas chromatography–mass spectrometry System (GC/MS) will be used for detection and quantitation of free and bound volatile phenols. This will be needed for the detection and quantification of free and bound volatile phenols. The GC/MS triple quad will also facilitate identification of other aromatic compounds in grapes and wines at ppt levels. These compounds will be important to analyze during amelioration projects to analyze the overall chemical composition of the grapes/wines and how this relates to sensory attributes.

Optimally, the GC/MS triple quad will be equipped with an autosampler system that can support direct injection and head-space solid phase microextraction (SPME). Direct injection also will be used for analysis of volatile phenols after extraction and isolation.

The GC System must have the following configuration:

- Autosampler capable of both direct injection and SPME injection sampling

- SPME Arrow set up with an agitator, incubator, and a fiber conditioning module

- GC oven capable of reaching temperatures between 3-450 C.

- Either 2 GC inlets or the capability of adding a second inlet at a later date

- No-vent features that allow one to change the GC column without venting the MS

- Dual filament switching

- Column nut for self-tightening

- Touch screen for instrument control

- Equipment/tools to change columns, fibers, etc.

- Helium conservation module

- Pressure regulators for gas tanks

- EI source (must be able to studies at an electron voltage of 70 or 70eV)

- Capable of reaching detection limits in ppt

- Turbo pump

- Vacuum oil pump

- Consulting and onsite installation

- Access to NIST library for unknowns analysis

- Software capable of data acquisition, data analysis (quantification and qualification), unknowns analysis (access to NIST library), and creating reports