H - Electricity – 01 – J
Patent
H - Electricity
01
J
358/9
H01J 49/42 (2006.01) B01D 59/44 (2006.01)
Patent
CA 1115429
TITLE QUADRUPOLE MASS SPECTROMETER INVENTOR Peter H. Dawson ABSTRACT OF THE DISCLOSURE The quadrupole mass spectrometer has four conventional rod-shaped poles symmetrically located about the ion injection axis. Opposite pairs of rods are inter- connected and connected to an rf voltage source. A shield having a circular aperture is located at the output end of the rods to assure the stoppage of low mass particles. In addition, a stopping element also preferrably circular is located on the axis at the output to assure the stoppage of heavy particles. A pair of grids incorporating the stopping element, are sequentially located at the output, normal to the axis, the first is connected to a dc voltage source to accelerate the remaining particles through the fringing field of the quadrupole and the second is connected to a dc voltage source to subsequently decelerate the particles.
336702
National Research Council Of Canada
Rymek Edward
LandOfFree
Quadrupole mass spectrometer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Quadrupole mass spectrometer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quadrupole mass spectrometer will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-944644