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Multiple sampling device and method for investigating biological systems

  • US 7,259,019 B2
  • Filed: 08/19/2005
  • Issued: 08/21/2007
  • Est. Priority Date: 03/11/2002
  • Status: Expired due to Term
First Claim
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1. A solid-phase microextraction device for measuring or identifying one or more components of interest from liquid samples arranged in a plurality of wells in a multiwell plate, said device comprising:

  • a plurality of non-porous fibres, each having a distal end at least partially coated with a polymeric extraction phase for absorbing or adsorbing the component of interest from the liquid samples; and

    a positioning device for guiding the coated distal end of said non-porous fibres into a submerged position within the plurality of wells of a multiwell plate, and for removing said non-porous fibres from said wells;

    said positioning device comprising;

    (i) a mounting plate for mounting each of a plurality of non-porous fibres in a position corresponding to a counterpart well on said multiwell plate, the non-porous fibres being retractably mounted within the mounting plate; and

    (ii) a guide for moving said mounting plate so the coated distal end of each of said non-porous fibres is submerged in a well of the multiwell plate, for retracting said non-porous fibres from said wells, and for positioning said non-porous fibres into a multiwell plate containing desorption solvent or into an analytical instrument.

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