PRODUCTION, TECHNOLOGY AND RESEARCH|technology and technical regulations
- Córas Bainistíochta Cáilíochta Tagairt Faomhadh an téarma seo mar chuid de Thionscadal Lex
- ga
2 thoradh
- SCIENCE|natural and applied sciences|physical sciences|chemistry|analytical chemistry
- mais-speictriméadar ceathairpholach Tagairt Faomhadh an téarma seo mar chuid de Thionscadal Lex
- ga
- quadrupole mass spectrometer | QMS
- en
- Sainmhíniú type of mass analyzer used in mass spectrometry which consists of 4 circular rods, set highly parallel to each other Tagairt "Wikipedia > Quadrupole mass analyzer. http://en.wikipedia.org/wiki/Quadrupole_mass_analyzer [12.11.2010]"
- Nóta The quadrupole is the component of the instrument responsible for filtering sample ions, based on their mass-to-charge ratio (m/z). Ions are separated in a quadrupole based on the stability of their trajectories in the oscillating electric fields that are applied to the rods.These mass spectrometers excel at applications where particular ions of interest are being studied because they can stay tuned on a single ion for extended periods of time. One place where this is useful is in liquid chromatography-mass spectrometry or gas chromatography-mass spectrometry where they serve as exceptionally high specificity detectors. Quadrupole instruments are often reasonably priced and make good multi-purpose instruments.