Use of a mass spectrometer with secondary ionization for the ins

Details Use of a mass spectrometer with secondary ionization for the ins Use of a mass spectrometer with secondary ionization for the ins

1994-09-12

1996-06-04

Berman, Jack I.

Radiant energy

Ionic separation or analysis

250282, 250288, H01J 4914

Patent

active

055235654

ABSTRACT:
Inspection of PET bottles for contamination is performed with a mass spectrometer in which the gas sample is ionized by an ionized primary gas. This causes greatly reduced fragmentation, or unambiguous fragmentation, of the gas sample. As a consequence, the spectrum obtained is very meaningful on its own, and can be interpreted very rapidly, which is an essential prerequisite for the use of mass spectrometers in industrial inspection.

REFERENCES:
patent: 4008388 (1977-02-01), McLafferty et al.
patent: 4074475 (1978-02-01), Risby et al.
patent: 4283626 (1981-08-01), Siegel
patent: 4830192 (1989-05-01), Plester et al.
patent: 4975576 (1990-12-01), Federer et al.

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