61
Nicolas Sarrut, Hubert Jeanson: Microfluidic method and device for transferring mass between two immiscible phases. Commissariat A l Energie Atomique, Oblon Spivak McClelland Maier & Neustadt L, August 7, 2012: US08236156 (61 worldwide citation)

A method of transferring mass of at least one solute between a liquid first phase and a fluid second phase that is immiscible with the first phase, the method comprising moving at least one droplet of said liquid first phase in a microfluidic device by using electric-type forces (electrowetting or d ...


62
Alfredo Choperena, Ross Krogh, Venkatesh Prasad, Gershon Giter: Device for automatic chemical analysis. Pasteur Sanofi Diagnostics, Fredrikson & Byron PA, December 2, 1997: US05693292 (59 worldwide citation)

This invention provides an automated chemical analyzer with improved processing flexibility and ease. In one embodiment of this invention, the analyzer includes an incubation station, a wash station and a read station. The incubation station includes an elongated, movable track to carry reaction ves ...


63
Ronald P Manginell, Gregory C Frye Mason: Chemical preconcentrator. Sandia Corporation, John P Hohimer, January 9, 2001: US06171378 (58 worldwide citation)

A chemical preconcentrator is disclosed with applications to chemical sensing and analysis. The preconcentrator can be formed by depositing a resistive heating element (e.g. platinum) over a membrane (e.g. silicon nitride) suspended above a substrate. A coating of a sorptive material (e.g. a micropo ...


64
Su Y Liu: Micro chemical analysis employing flow through detectors. World Precision Instruments, Chilton Alix & Van Kirk, August 22, 1995: US05444807 (58 worldwide citation)

The chemical properties of a flowing liquid analyte, the analyte comprising a solvent having an index of refraction which is the same as or closely approaches that of water, are determined by liquid chromatography or capillary electrophoreses wherein the analyte is caused to flow through an optical ...


65
Alfredo Choperena, Ross Krogh, Venkatesh Prasad, Gershon Giter: Method and device for automatic chemical analysis. Pasteur Sanofi Diagnostics, Fredrikson & Byron PA, August 19, 1997: US05658799 (56 worldwide citation)

The invention provides a method for analyzing samples for different analytes. A plurality of assay resource stations are provided, each of which includes an assay resource capable of performing a predetermined operation upon a reaction vessel within a time cycle of fixed duration, as is an analyzer ...


66
David Breeser, Alan Wirbisky, Ross Krogh: Method and device for automatic chemical analysis. Beckman Coulter, Fredrikson & Byron PA, March 16, 1999: US05882596 (56 worldwide citation)

The present invention provides a vessel shuttle which can be used, for example, for moving reaction vessels to or from an assay resource station in an automated chemical analyzer. The vessel shuttle has a plurality of movable plates including first and second vessel carrying plates adapted to move c ...


67
Shinichi Okano, Takashi Koizumi, Tadashi Uekusa: Incubator. Fuji Photo Film, Sughrue Mion Zinn Macpeak & Seas, April 22, 1986: US04584275 (55 worldwide citation)

An incubator is provided with an inlet, a measurement station and an outlet for chemical analysis slides, and a number of levers or pushing devices for stepwisely circulating the slides through the apparatus. The device is useful for uniformly incubating a plurality of chemical analysis slides or th ...


68
Clifford Riley, Christopher J Mears: Automatic chemical analysis. Vickers, Wegner & Bretschneider, September 8, 1987: US04692308 (55 worldwide citation)

Apparatus for, and a method of, automatic chemical analysis. The apparatus comprises a conveyor system for delivering vials containing samples for analysis through an entry gate and identification arrangement to a series of analytical modules where a succession of tests is effected on each of the sa ...


69
Roger W Giese: Molecular analytical release tags and their use in chemical analysis. Northeastern University, Weingarten Schurgin Gagnebin & Hayes, November 24, 1987: US04709016 (55 worldwide citation)

A new class of chemical reagents called release tags which comprise signal, release and reactivity groups is disclosed and a release tag involving a pentafluorobenzoyl signal group, a methionylamide release group, and an active ester reactivity group is used to analyze the hormone, thyroxine, in ser ...


70
Raymond Newton, David Malcolm Lawes: Apparatus for automatic chemical analysis. Biotec Instruments, Lee & Smith, September 12, 1989: US04865811 (54 worldwide citation)

A sample duct in a carrier line is isolated by three-way valves blocking the flow of carrier or flushing liquid from reservoirs. The sample duct may be connected to a loading syringe and to a sample reservoir respectively by the valves. When the sample duct is connected into the carrier line, pressu ...