United States of America As Represented by the Secretary of the Air Force

Mitchell H Rubenstein

Patrick Lewis

Benjamin A Clapp

John A Rogers

Douglas Ray Adkins

Michael Charles Brothers

Anthony V Qualley

Sungbong Kim

Steve S Kim

A system for solventless calibration of volatile or semi-volatile compounds and methods thereof. The system includes a fluid path having a first end configured to be operably coupled to a fluid source and a second end configured to be operably coupled to the analytical instrument. A solid sorbent is disposed along the fluid path and is configured to absorb an analyte. The flow of fluid along the fluid path from the first end to the second end causes absorbed analyte to be desorbed from the solid sorbent at a desired concentration to the instrument.

Method and system for solventless calibration of volatile or semi-volatile compounds

A system, apparatus, and method include a pump to deliver vapor including airborne contaminants including organic compounds including a target analyte; a collector to transfer the airborne contaminants by autonomous liquid extraction into a mobile organic liquid phase; a micro-fluidic chamber including immobilized biorecognition elements that bind to analytes delivered from the mobile organic liquid phase; a mechanism to introduce the mobile organic liquid phase to a buffer containing a plurality of substrates causing a series of biochemical reactions that create a change corresponding to a concentration of the target analyte; and a detector to perform real-time analysis that correlates to a concentration of the organic compounds to determine a presence of the target analyte.

Air to liquid micro-fluidic chamber

The present invention relates to a method of improving a mass spectrometer, a module for improving a mass spectrometer and an improved mass spectrometer. The aforementioned method employs a calibration correction module that calibrates the mass spectrometer so timely, more precise and accurate data can be obtained. In particular, real time, accurate mass determinations of low analyte quantity samples can be obtained.

Method of improving a mass spectrometer, module for improving a mass spectrometer and an improved mass spectrometer

The present invention relates to methods of improving analytical instruments and improved analytical instruments. The aforementioned method employs a calibration correction module that calibrates the machine to effect measurements with the minimum possible relative squared error. This results in a significant improvement of the analytical instrument in question that leads to more precise and accurate results.

Method of improving an analytical instrument and improved analytical instruments

A non-destructive process for removing chromium from polyvinyl chloride filters is disclosed. The process involves immersing the polyvinyl chloride filters in a concentrated hydrogen peroxide solution at elevated temperatures, followed by rinsing with deionized water. Removing the background concentration of chromium from the filters allows for more accurate measurements of the amount of hexavalent and total chromium present in workplace environments.

Growing community of inventors

Beavercreek, OH, United States of America

Mitchell H Rubenstein