US PATENT SUBCLASS 73 / 61.52
.~.~.~ Chromatography

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


73 /   HD   MEASURING AND TESTING

53.01  DF  LIQUID ANALYSIS OR ANALYSIS OF THE SUSPENSION OF SOLIDS IN A LIQUID {15}
61.41  DF  .~ Content or effect of a constituent of a liquid mixture {8}
61.43  DF  .~.~ Liquid constituent of a liquid mixture {9}
61.52.~.~.~ Chromatography {6}
61.53  DF  .~.~.~.~> Column detail
61.54  DF  .~.~.~.~> Paper or thin layer type
61.55  DF  .~.~.~.~> Including sampling, sample handling, or sample preparation
61.56  DF  .~.~.~.~> Detail of fluid handling means (e.g., valve, control, etc.)
61.57  DF  .~.~.~.~> With detail of compensation or regulating means
61.58  DF  .~.~.~.~> Detector detail

DEFINITION

Classification: 73/61.52

Chromatography:

(under subclass 61.43) Subject matter wherein the determination is made by successively testing the effluence of a mixture of liquids, which has contacted a solvent or sorbent which separates the mixture into fractional components in order to determine the quantity, quality or identity of a component of the effluent.

SEE OR SEARCH THIS CLASS, SUBCLASS:

19.1, for a gas chromatos:graphic process or apparatus for determining the presence of or the amount of gas in a liquid.

23.35, for the analysis of gas by chromatography.

863+, for liquid sampling, per se.

SEE OR SEARCH CLASS

204, Chemistry: Electrical and Wave Energy,

400+, for electrolytic analysis and testing apparatus. 205, Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions,

775+, for electrolytic analysis or testing processes.

210, Liquid Purification or Separation,

85+, for a liquid separator with a recorder, subclass 198.2 for a device for removing a constituent from a liquid by sorption combined with means to add treating material,

subclasses 263+ for a liquid separator utilizing a bed of particulate material and subclasses 660+ for a process of removing a constituent from a liquid by sorption.

324, Electricity: Measuring and Testing, particularly

459+, for liquid analysis using ionization effects and appropriate subclasses for testing a liquid by measuring an electrical property of the liquid.

356, Optics: Measuring and Testing,

409+, for a process of liquid chromatography wherein a liquid substance, a solute in a solvent, or a miscible liquid is examined by transmission of light to furnish a quantitative or qualitative determination with respect to a chemical composition of the liquid analyzed in the absence of a color development.

422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing,

70, for chromatos:graphic analysis of a liquid utilizing a chemical reaction.

436, Chemistry: Analytical and Immunological Testing, 161, for a process or composition in which the results of a chemical reaction is subjected to a chromatos:graphic separation or analysis.