Classifier Instance:

Anchor text: Varian
Target Entity: Varian\u002c_Inc\u002e
Preceding Context: Before mass separation, a beam of positive ions has to be extracted from the plasma and focused into the mass-analyzer. It is important to separate the ions from UV photons, energetic neutrals and from any solid particles that may have been carried into the instrument from the ICP. Traditionally, ICP-MS instruments have used transmitting ion lens arrangements for this purpose. Examples include the Einzel lens, the Barrel lens, Agilent's Omega Lens and Perkin-Elmer's Shadow Stop. Another approach is to use ion guides (quadrupoles, hexapoles, or octopoles) to guide the ions into mass analyzer along a path away from the trajectory of photons or neutral particles. Yet another approach is
Succeeding Context: patented used by Bruker Aurora M90 ICP-MS 90 degrees reflecting parabolic "Ion Mirror" optics, which are claimed to provide more efficient ion transport into the mass-analyzer, resulting in better sensitivity and reduced background. Bruker ICP-MS - Aurora M90 is the most sensitive instrument on the market.
Paragraph Title: Ion optics
Source Page: Inductively coupled plasma mass spectrometry

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