QUADRUPOLE MASS SPECTROMETER

QUADRUPOLE MASS SPECTROMETER

The Quadrupole Mass spectrometer is a very versatile analytical instrument capable of compositional analysis of gases and volatile liquids. This instrument has been developed by BARC as an import substitute.

Features :

Compact, reliable and low cost analytical tool
Electron impact ion source
Turbomolecular pump with Rotary backup for clean vacuum
Easy sample introduction
PC based interface & control
Channel electron multiplier detector

Specifications :

Quadrupole Mass Analyzer

Rod diameter
Rod length
Pre-filter/post
filter
RF frequency
Resolution
Mass range
Sensitivity

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16 mm
200 mm
24 mm
1.2 MHz
1 amu (adjustable)
1-300 amu
1x10-4A / torr for N₂on Faraday cup
1A / torr on CEM

Ion source

Source
Filament material
Ion Optics

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Electron Impact
Tungsten wire
Focus, Lens1, Lens2

Vacuum System

Vacuum system
Roughing pump
Sample Introduction System

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Turbo molecular pump (250 l / s)
Rotary pump (5-10 m³ / h)
Suitable for gases & volatile liquids.
Single port with controlled leak valve.

Applications :

Gas compositional analysis from chemical and physical processes
Residual gas analysis in Ultra High Vacuum systems
Molecular weight and structural identifications in many organic compounds
It can also be coupled to a Gas Chromatograph or a liquid Chromatograph for varied analytical problems

Infrastructure Required :

Mechanical Fabrication Workshop with the following facilities

Conventional Lathe Machine
CNC Lathe Machine
Centerless Grinding Machine
Vertical Milling Machine
TIG Welding
Electropolishing
CNC Gig Boring

Facilities for Inspection of mechanical sub - assemblies

Normal Precision Measuring Instruments
3D-Co-ordinate Measuring Machine (L.C.—1 micron)
MSLD ( Helium Leak Detector ) for Vacuum Testing
(Leak Rate: 10^-12 Torr Litre/sec)

Electronics Assembly & Test Facilities

PCB assembly, SMD workbench & Instrument rack wiring facility
Normal measuring instruments like multimeters & 100MHz Oscilloscopes
Function generator ( 1MHz )
6 & 1/2 Digit Digital Voltmeter or Digital Multimeter
R.F. Digital Voltmeter with attenuator
High Voltage measurement system

Manpower

One Electronics diploma engineer for electronic units assembly/maintenance
One Physics graduate/ PG for Vacuum testing & QMS operational testing
One Mechanical and one Electrical Technician

Space

150 square feet space is required for assembly, testing & installation of the Quadrupole Mass spectrometer.

Power Supply

230 Volts, 5 Ampere & 15 Ampere, Single Phase, 3kVA

For details contact :

    Head, Technology Transfer & Collaboration Division,
    BHABHA ATOMIC RESEARCH CENTRE,
    TROMBAY, MUMBAI - 400 085
    Fax : 091-022-25505151
    Email : technology@barc.gov.in