Production Engineering - Medical Equipment Division

PEMED home page6035 E. 38th Avenue, Denver, Colorado 80207 USA (303) 393-7800 FAX (303) 393-1482

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Mass spectrometer- $27,500

List: $380,000. MedCon: G. VG Micromass model 7070 H mass spectrometer. Unit appears to be complete. Unit was removed in operational condition and then mothballed for five years. This unit is an excellent opportunity for a lower-cost research grade instrument for those willing to spend the time to calibrate and to the instrument. Basically, mass spectrometry permits unique identification of molecular formulas based on natural isotopic abundance. As this technique requires the volatilization and ionization of molecules, it becomes technically more difficult as the sample molecular weights increases.

We have shown the instrument in 2 sections:

1. The control panel and support electronics and
2. the instrument itself

Details of the instrument power and control panel.
An overview of the programmed power supply. Features: KV meter, 0-5 Kv. start button fine adjust scan /manual select knob magnet compensation well Kv (0-10 Kv) well ma meter power on button high voltage button
This is an overview of: the multiplier supply the emission control supply the Z focus control.
This is an overview of: government in memorandum of the resource control a the probe heater supply the source heater supply thermocouple the electrostatic analyzer supply
This is an overview of: mass indicator linked scan control
This is an overview of: mode selector FAB unit display unit
This is an overview of: the scan control the magnet control
This is an overview of: the mass marker Kapco power supply
This is an overview of: extraction control unit FD source control
This is an overview of: MID system peak matching system
This is an overview of the U. V. recorder range control.

Here is the instrument itself.

Rather than trying to document and describe each fixture on the instrument we have included some detailed photographs for your viewing. Here are a series of close-up shots of the actual instrument showing chambers, furnace and other details. Click on each of the small photographs to make them full-screen. Also shown are some small loose parts, and accessories, that come with the instrument.
There are a series of controls and control panels built into the instrument itself. These are described below. These controls are actually on the instrument, not on the control panel. The control panel is described in detail in its own table below.
Here are views of: the Pirani-ion gauge control inlet temperature controller

The following groups use this model of mass spectrometer instrument for research studies. Follow these links to see other institutions using this instrument for significant research projects:

• Lajos Kossuth University, Debrecen, Hungaryhttp://www.klte.hu/~wwwphch/tcs/ms/einstr.htm
• University of California, Riversidehttp://ernst.ucr.edu/acif/ms/history.html
• University of Minnesotahttp://www.mrsec.umn.edu/facilities.html
• Auburn University, Alabamahttp://www.auburn.edu/~hillwil/Fac.html
• University of Chicagohttp://ars-www.uchicago.edu/chemistry/spectro.html
• University of Aukland, New Zealandhttp://www.auckland.ac.nz/che/chemfac.htm
• University of California, Santa Cruz: http://freon.ucsc.edu/massspec.html
• Washington State Universityhttp://www.sci.wsu.edu/cos/BioLabs.html
• University of Maryland, College Park http://www.chem.umd.edu/facility/masspect.html
• University College, London, United Kingdomhttp://calcium.chem.ucl.ac.uk
• http://ernst.ucr.edu/acif/ms/msfac.html

Several vendors make computer software and an interface hardware to upgrade this machine to current technical standards. These companies sell retrograde hardware and software to connect this instrument to Windows style computers. Running an Internet search on the phrase "mass spectrometer 7070" produced about 120 references to institutions and research facilities using this instrument for studies.

Some vendors making devices to support and upgrade this instrument are:

• Detector technologies http://www.detechinc.com/.\replacements.html
• MSS Data System for sector field and quadrupole mass specs http://home.t-online.de/home/mascom/mssdata.htm
• List of analytical instrument support vendors: http://www.kaker.com/mvd/biglist.html
• Kore technology detectors http://www.kore.co.uk/channelt.htm

Shipping weight is about 1,600 pounds.

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Production Engineering - Medical Equipment Division

6035 E. 38th Avenue, Denver, Colorado 80207 USA (303) 393-7800 FAX (303) 393-1482