Quadropole lens having interdigitated lobes on adjacent...

Quadrupole electrode and process for producing the same

Quadrupole faims apparatus

Quadrupole mass filter with unbalanced r.f. voltage

Quadrupole mass spectrometer

Quadrupole mass spectrometer

Quadrupole mass spectrometer with ion traps to enhance...

Quadrupole mass spectrometer with spatial dispersion

Quadrupole mass spectrometers

Quadrupole r.f. sputtering system having an anode/cathode...

Quadrupole time-of-flight mass spectrometer method and...

Quadrupole trap improved technique for collisional induced...

Quadrupole trap improved technique for ion isolation

Quadrupole with applied signal having off-resonance frequency

Qualitative and quantitative mass spectral analysis

Quantitative compositional analyser for use with scanning...

Quartz arc tube for a metal halide lamp and method of making...

Quartz bulb for double ended discharge lamp

Quartz gas discharge lamp providing photocatalytic oxidation

Quartz lamp envelope with molybdenum foil having...