Methods and apparatuses for trace and ultratrace analysis
AssigneeSouth Dakota Board of Regents
InventorBrian Logue
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Abstract
Methods of analyzing analytes from a liquid medium are disclosed. A system and apparatus for the analysis of analytes from a liquid medium are further disclosed. In particular, methods and apparatus of analyzing analytes by freezing liquid medium and partitioning the analyte into a sorptive stirrer are disclosed. Further, the methods and apparatus of the present invention can be useful in concentrating and isolating target chemicals of high value.
Claims20
An apparatus of extracting analytes from a liquid medium, comprising:
- a sample container, a sorptive stirrer, a cooling source;
- wherein said liquid medium is placed in said sample container;
- wherein said sorptive stirrer is placed in said sample container;
- and wherein said sample container is placed in or on said cooling source.
The method of extracting a solute from a liquid medium, comprising:
- stirring a liquid medium containing an analyte in a sample container with a sorptive stirrer comprising a sorptive material;
- and
- cooling the sample container while the analyte is being stirred so the liquid medium freezes and the analyte is concentrated and absorbed into or adsorbed by the sorptive material, wherein said cooling is done by a cooling source.
The method of extracting a solute from water, comprising:
- stirring water containing an analyte in a sample container with a sorptive stirrer comprising a sorptive material;
- and
- cooling the sample container while the water is being stirred so the water freezes and the analyte is concentrated and absorbed into the sorptive stir bar.
Dependencies are inferred from the claim text.