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Aliquoting of serial liquid samples

  • US 4,979,402 A
  • Filed: 01/12/1989
  • Issued: 12/25/1990
  • Est. Priority Date: 01/27/1988
  • Status: Expired due to Fees
First Claim
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1. A liquid aliquoting apparatus for obtaining an aliquot of a series of liquid samples comprising:

  • a liquid collection container forming a liquid collection chamber, a top portion of said liquid collection container forming an opening, said opening having a cross section large enough to accommodate a fluid sample intake into said liquid collection chamber, at least one aliquot storage container, each one forming an aliquot storage chamber below said liquid collection chamber, at least one generally vertical aliquot measurement container, each one forming an aliquot measurement chamber;

    vent means positioned at a high point of each said aliquot measurement container, each said aliquot measurement chamber in fluid communication with said liquid collection chamber through said vent means;

    fill means positioned in a region of a low point of each said aliquot measurement container and said liquid collection container, each said aliquot measurement chamber in fluid communication with said liquid collection chamber through said fill means;

    drain means positioned at said low point of each said aliquot measurement container and said liquid collection container, each said aliquot measurement chamber in fluid communication with each corresponding said aliquot storage chamber; and

    volume displacement means for discharging a fluid from each said aliquot storage chamber and intaking a liquid sample from each corresponding said aliquot measurement chamber.

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