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  5. Varian - 320-MS LC/MS
This product is Discontinued

Varian - 320-MS LC/MS

Manufactured by  Varian
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320-MS LC/MS

The 320-MS delivers high sensitivity with low noise and less maintenance. The patented API interface, with its dual off-axis needle and capillary provides efficient desolvation with minimum contamination. A high performance skimmer and quadrupole ion guide allow maximum ion transmission for outstanding signal intensity. Varians patented 180º curved collision cell provides additional noise reduction for difficult matrices. You get the benefits of a detector that is off-axis to the source without the use of a conversion dynode.
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EDR Detector Calibration
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Features of 320-MS LC/MS
  • Switch from LC to GC interface and back again
  • Change ionization modes between ESI and APCI
  • GC sources include: EI, PCI and NCI
  • Single Quad to Triple Quad upgrade

Flexible, Rugged, Sensitive

Varian’s patent pending, computer-controlled gas temperature (SelecTemp™) and flow (SelecFlow™) give you the flexibility to develop methods with greater ruggedness and sensitivity. An integrated syringe pump and six port valve, with time-programmable software control, accelerate method development.

Sensitivity When You Need It

When we say femtogram sensitivity, we mean it. Whether you’re doing simple flow injection with the built-in syringe pump (Figure A), or on-column analysis using the new 212-LC pumps (Figure B), you’ll be impressed with the 320-MS sensitivity.

General Specifications
Scan Speed 6000 amu/sec
Mass Spectrometer TypeQuadrupole Mass Analyzer
Additional Specifications

Resolution: unit mass over the entire range    
Linear dynamic range: up to 105, compound-dependent based upon analytical methods    
Mass axis stability: ±0.1 Da over 24 hours    
Manifold temperature: independent control; 30 ºC to 50 ºC    
Ion detector: positive or negative ions, constant 5 kV post acceleration voltage    
Single quadrupole modes: Q1MS for Selected Ion Monitoring (SIM) and Full Scan    
Triple quadrupole modes: Q1MS and/or Q3MS for SIM or Full Scan, Precursor Scan, Product Scan, Neutral Loss Scan, and Selected Reaction Monitoring (SRM)    
Turbomolecular pump: dual stage, 310/400 L/sec, air cooled    
High efficiency electron multiplier: 170 ms Positive to Negative switching time    
Adjustable dwell times: 2-14,000 ms software defined per transition

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