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中國語文MS-200小冊子

MS-200 Portable Mass Spectrometer

Frequently Asked Questions (FAQs) list

Photo of MS-200

MS-200 applications include:

Photo of MS-200 in use

Mass Spectrometer

At the heart of the MS-200 is Kore's patented Converging Annular Time- of-flight mass spectrometer. The CAT's high sensitivity is the key to making the system portable. As extremely small quantities of sample gas are required, low powered, zero maintenance vacuum pumps can be used. The MS-200 uses electron impact ionisation, yielding spectra that correspond to extensive and well established mass spectral databases. Unlike other mass spectrometers, the CAT's very clean ion source eliminates problems associated with build-up of sample residues and electron emitting filament poisoning, giving enhanced filament lifetime with a consistent quantitative performance.

Vacuum system

There is no need for a separate vacuum base station as the CAT vacuum system is kept permanently sealed and is entirely self contained within the MS-200 case. The vacuum is maintained by an ion pump and a non-evaporable getter which deal with all gases. The battery can run the ion pump for approximately two and a half days. A mains adapter is used if the unit is to be left for many days. If the battery runs flat, the getter pump maintains the vacuum until power is re-applied. MS200

Inlet system

Sample gases are drawn through a heated inlet system by a pump and enter the CAT source via a membrane assembly. The membrane assembly provides a long-life, low maintenance, rugged, concentrating sample inlet that allows p.p.b. sample detection limits to be achieved for many compounds. Typical analysis times are under one minute even at the highest sensitivities and the membrane inlet yields a good quantitative accuracy.

Data System

Data is displayed on a notebook PC, using the Windows® based GRAMS/AI™ software from Thermo Galactic Corporation. This industry standard software has been customised by Kore to make the collection of spectra a simple press of a virtual button. Kore provides a spectrum library with library search facilities and data analysis software for the automatic analysis of mixtures that presents the identified sample gas components concentrations in tabular form.MS200

Specification

Sensitivity

Example sensitivity:
<5ppb in 10 secs (Benzene)

Spectrometer

Mass range:
1 to 1000 amu
Dynamic range:
6 decades
Linearity:
better than 5%

Battery running time

Analysis:
6.6 hours (1 spectrum every 5 minutes)
Pumping only:
4 days

MS-200 case and contents

Weight:
20 kg (16 kg no battery)
Size:
531 x 328 x 213 mm

Other technical details

Applications data

MS-200 special projects and research accessories

For the experienced researcher wishing to extend the capabilities of the MS200, Kore is happy to supply custom additions. For example, Kore have developed a novel trap based concentrator that extends the sensitivity of the MS-200 by up to two orders of magnitude (currently mains powered). You can read about its capabilities in this thesis excerpt. Another example of a special development project that we are pursuing with the UK Defence Science Technology Laboratory (DSTL) involving our portable mass spectrometry instrumentation can be found in a presentation made at the Harsh Environment Mass Spectrometry Workshop.

Price details

If you wish to buy an MS200 please contact Kore by email (sales@kore.co.uk) or via the Enquiry form for the latest prices.


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Last updated: 14:12 21/09/2017

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