Quadrupole mass spectrometers

Details Quadrupole mass spectrometers Quadrupole mass spectrometers

1986-01-31

1987-11-24

Anderson, Bruce C.

Radiant energy

Ionic separation or analysis

Cyclically varying ion selecting field means

250281, B01D 5944

Patent

active

047091487

ABSTRACT:
A quadrupole mass spectrometer has a housing containing pole rods which define a passage through which ions can pass when the housing is evacuated. RF voltage is supplied to the pole rods to cause ions only of a predetermined mass/charge ratio to pass through the passage. Such ions are detected and their rate of receipt is inducted. The temperature of the RF supply is controlled to enable more consistent analytical results to be attained.

REFERENCES:
patent: 2425657 (1947-08-01), Tunick
patent: 2732418 (1956-01-01), Lindley
patent: 3059164 (1962-10-01), Johnson
patent: 3536952 (1970-10-01), Findley

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