manufacturer:       Varian

model:                   GC/MS 320

annotation:           Dokumente engl .

The Varian 320-MS GC/MS is a sensitive and flexible quadrupole GC/MS or GC/MS/MS system. The 320-MS provides a small, powerful, flexible system that is fully upgradeable to an LC/MS system, making it the best choice for any application involving demanding matrices and sensitive quantitation .

Analyzer

MS Specifications

§         Scan modes: Q1MS, Q3MS, Precursor (Parent), Product (Daughter), Neutral Loss, Selected Ion Monitoring (SIM), Selected Reaction Monitoring (SRM), Full Scan

§         Ionization modes: Electron Ionization (EI) or positive/negative Chemical Ionization (CI)

§         Source: EI/CI source with vacuum interlock for quick change of ion volumes; entrance hexapole isolates source contaminants from mass filter

§         Source temperature: independent control, 20 ºC to 325 ºC

§         Filament: single, 50 to 500 μ A

§         Electron energy: 20 eV , 70 eV or 150 eV

§         Mass filters: quadrupole with pre- and post-filters; lensless design maximizes transmission efficiency

§         Collision cell: 180º curved path with pre- and post-filter region; long path ensures high dissociation efficiency

§         Mass range: Up to 2000 Da

§         Scan rate: Up to 6000 Da /sec

§         Resolution: 0.7 Da at 1250 Da/sec or 0.6 Da at 500 Da/sec

§         EI dynamic range: >10 5 (compound dependent)

§         Mass axis stability: ±0.1 Da over 24 hours

§         Transfer line temperature: independent control; 50 ºC to 325 ºC

§         Manifold temperature: independent control; 30 ºC to 50 ºC

§         Ion detector: positive or negative ions, constant 5 kV post acceleration voltage

§         Carrier gas flow: up to 8 mL

§         Turbomolecular pump: dual stage, 300/380 L/sec, air cooled

§         Power requirements: 100-240 Vac , 50/60 Hz ±3 Hz, 1200 VA

§         Humidity: 20% to 80% relative humidity (without condensation)

§         Temperature: 15 ºC to 30 ºC

§         High efficiency electron multiplier: 240 ms Positive to Negative switching time

§         Adjustable dwell times: 2-14,000 ms software defined per transition

GC Power Requirements

§         120 Vac ±10%, 60 Hz ±2%, 20 A, 2.4 kW

§         230 Vac ±10%, 50 Hz ±2%, 20 A, 2.3 kW

§         101 Vac ±10%, 50 or 60 Hz ±2%, 25 A, 2.5 kW

Environmental Requirements

§         Humidity: 20% to 80% relative humidity (without condensation)

§         Temperature: 16 ºC to 30 ºC operating

320-MS GC/MS Dimensions

50 cm (w) x 38 cm (h) x 71 cm (d) / 19.5 in. x 15 in. x 28 in.; 108 kg/237 lb