µGC / MASS DETECTOR COUPLING

2 VERSIONS: LABORATORY AND FIELD PORTABLE
Coupling a µGC with an MSD provides new possibilities by associating high speed, performance, flexibility and dependability. The µGC rapidly separates the gases in mixtures, and the MSD identifies the types that are present using a powerful library search algorithm. You therefore have 2 detection tools at your disposal with the standard equipment.
 
AN EXCLUSIVE NEW COUPLING TECHNIQUE, DEVELOPED BY THE CNRS MASS SPECTROMETRY LABORATORY IN VERNAISON (FRANCE)
 
The two instruments are coupled via a specific interface developed by the CNRS, allowing use of the two detectors in real time, without altering the Nano-TCD performances, or the sensitivity of the mass detector.
 
Advantages
Reliable and fast identification of the compounds.
The thermal conductivity of the compounds can be determined from peak identification; this enables a first approach for quantification, without the use of reference product(s).
Coupling with an evaporator for determining traces is possible.
  • Rapid analysis of complex mixtures
  • Rapid qualitative and quantitative analysis
  • Real time analysis
  • GC/MS analysis every 2 minutes
  • Integrated, refillable carrier gas cylinder
  • User-friendly
  • Can be used in µGC, MS or GC/MS mode
Field portable version.
 
QUAD SERVICE AND SRA INSTRUMENTS offer the Microgaz 800 which combines gas micro-chromatography with mass spectrometry.
The combination of these 2 techniques in a field portable configuration provides you with a true on-site laboratory. The standard Microgaz 800 is equipped with 2 detection tools, the Nano-TCD and the mass spectrometer. The two instruments are coupled via an interface at the output of the Nano-TCD. A portion of the solute is drawn into the capillary of the spectrometer. This interface allows use of the two detectors in real time, without affecting the performances of the Nano-TCD. The solute migrates through the capillary and penetrates directly into the ionization source to be ionized, filtered and detected.
 
Applications:
  • Gas analysis
  • Testing for gas emissions
  • Hygiene and safety inspection
  • Quality Assurance
  • Continuous analysis
  • Catalysis
  • Analysis of T.H.T in Natural Gas: Click here
Specifications
Mass spectrometer specifications : " Agilent Technologies " 5973N
GC interface Direct, regulated feed line
Mass range 1.6 - 800 U
Resolution Unit resolution for the entire mass range
Scanning speed 5200 U / second
Source
Ion source with two filaments in EI mode, and a single filament in CI mode
Ionization energy User-adjustable from 5 to 240 eV
Emission current User-adjustable from 0 to 315 µA
Detector Multiplier unit with high energy dynode
Measurement dynamics Greater than 106
Temperature User-adjustable for the source and the quadripole
 
Micro GC
Sampling Maximum pressure of the sample less than 2 bar He, N2, Ar
Injector
Heated or non-heated Nano-injector with fixed or programmable volume. Backflush optional.
Injection volume From 0.3 to 10µl, integrated sampling pump
Detector Nano TCD, internal volume 240 nanoliters
Detector dynamic range 106 ± 10%
Temperature From ambient temperature to 180°C (isotherm)
Gaz vecteur He, N2, Ar
Runtime 160 seconds maximum
 
Software program
Based on Chemstation software for instrument control and data acquisition and processing.
 
  • Autotune and target programs for EI, PCI, and NCI modes.
  • Data acquisition and processing programs, customized report generation.
  • Quantitative and specific library search programs.
  • Diagnosis functions.
Sensitivity: 1ppmv. A few ppb with the use of a pre-evaporator.