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Analytical instruments, assemblies, and methods

  • US 8,952,321 B2
  • Filed: 12/29/2010
  • Issued: 02/10/2015
  • Est. Priority Date: 06/15/2004
  • Status: Active Grant
First Claim
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1. A mass analysis instrument comprising:

  • a housing encompassing components of the instrument, the housing defining a space having a volume of equal to or less than about 100,000 cm3, the components within the housing comprising;

    a sample inlet component configured to one or both of couple with at least one sampler external to the housing and/or receive sample directly;

    a gas chromatography sample preparation component operatively coupled to the sample inlet component;

    an electron ionization component operatively coupled to the gas chromatography sample preparation component;

    single ion trap component operatively coupled to the electron ionization component, the ion trap component comprising a cylindrical ion trap or a linear ion trap;

    an electron multiplier assembly comprising a conversion dynode and configured to dual polarity ion detection operatively coupled to the cylindrical ion trap or linear ion trap component;

    a vacuum chamber housing at least the electron ionization component, the cylindrical ion trap or linear ion trap component and the electron multiplier assembly;

    an instrument component isolation assembly extending between the housing and the vacuum chamber; and

    a processing and control component operatively coupled to one or more of the inlet component, the sample preparation component, the ionization component, the cylindrical ion trap or linear ion trap and/or the electron multiplier assembly.

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