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SAMPLE INJECTION WITH FLUIDIC CONNECTION BETWEEN FLUID DRIVE UNIT AND SAMPLE ACCOMMODATION VOLUME

  • US 20170343518A1
  • Filed: 05/30/2017
  • Published: 11/30/2017
  • Est. Priority Date: 05/30/2016
  • Status: Active Grant
First Claim
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1. An injector for injecting a fluidic sample into a flow path between a fluid drive and a separation unit of a sample separation apparatus, the injector comprising:

  • a sample accommodation volume configured to accommodate the fluidic sample prior to injecting;

    a sample drive configured to intake the fluidic sample into the sample accommodation volume;

    a fluidic valve switchable between multiple switching states to thereby selectively couple the sample accommodation volume with the flow path or decouple the sample accommodation volume from the flow path, wherein in an injection switching state of the fluidic valve, the fluid drive, the separation unit and the sample drive are fluidically coupled by the fluidic valve so that fluid driven by the sample drive and flowing from the sample accommodation volume to the separation unit and further fluid driven by the fluid drive and flowing from the fluid drive to the separation unit are combined at a fluidic connection upstream of the separation unit; and

    a control unit configured to control a pressure of at least one of the group consisting of the fluid driven by the sample drive, the further fluid driven by the fluid drive, and the combined fluid during injecting fluidic sample from the sample accommodation volume into the flow path.

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