Agilent Technologies 5890 Series II Gas Chromatograph with 5971 Mass Spectrometer

Introduction

Gas Chromatography/Mass Spectrometry (GC/MS) is a powerful analytical technique that combines the gas chromatography with the mass spectrometry. Gas chromatography is the process of taking a sample or extract and injecting it into the system, heating it to a vapor, and ideally separating the mixture of compounds into individual peaks (preferably individual compounds).  As the resolved sample components exit the column, the MS breaks each analyte into a chemical-specific set of ion fragments which is used for conclusive identification

Instrument uses

The Agilent Technologies 5890 Series II gas chromatograph with mass selective detection determines the presence and concentrations of target solutes in the following applications:

• semi-volatile organic compounds
• dilute organic sample extracts
• environmental trace analysis (parts per billion)
• library identification of unknown compounds via mass spectral interpretation

Instrument Specifications

• Manufacturer: Agilent Technologies (Palo Alto, CA) Life Sciences/Chemical Analysis.

Gas chromatograph

• 5890 Series II gas chromatograph programmable oven
• split-splitless injector port
• on-column injector port
• configured for 0.25 mm id capillary columns
• automated liquid sampler holds 100 2-mL 12x32 mm vials
• CO2 cryo-cooling system

Detection

• 5971a mass selective detector
• electron impact ionization
• quadropole ion filter
• ion-source vacuum gauge
• maximum m/z is 625 amu
• flame ionization detector

Data system

• MS Chemstation
• EnviroQuant
• NIST 57k Library of spectra

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