Patent · US Expired

Method and device for detecting volatile analytes in air samples

US7950270B2 · kind B2 · utility

0Cited by

8References

21Claims

0Family size

Inventors

Reiner Kober
Thomas Christen · Zürich, CH
Erich Probeck · Frankfurt am Main, DE
Joachim Bargon · Bonn, DE
Fritz Vögtle · Bornheim, DE
Gerhard Horner · Linz, AT

Key dates

Filing date	Apr 26, 2004
Grant date	May 31, 2011
Priority date	—
Expiry date	Dec 10, 2025

Classification

Technology area (CPC G)Physics
CPC primaryG01N2291/0257
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention relates to a method and a device (16) for detecting volatile analytes in air samples, where a masssensitive sensor (20) with at least one sensor area (21) which is equipped with a surface layer with selective sensitivity for the analyte(s) to be detected is brought into contact with the air sample to be analyzed, the mass change of the surface layer is detected in the form of electrical signals and the electrical signals are evaluated. It is provided in accordance with the invention that the sensor signal is already evaluated at a point in time at which the maximum sensor signal for the analyte concentration in question is not yet obtained.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.