Chemometric analysis of chemical agents using electrochemical detection and classification techniques

US9678032B2 · kind B2 · utility

Assignees

• The Regents of the University of California · US
• UNIVERSITAT AUTÓNOMA DE BARCELONA · ES

Inventors

• Joseph Wang · San Diego, US
• Joshua Ray Windmiller · Del Mar, US
• Aoife O'Mahony · San Diego, US
• Xavier Cetó · la Figuerosa, ES
• Manel Del Valle · Terrassa, ES

Key dates

• Filing date: Oct 29, 2013
• Grant date: Jun 13, 2017
• Expiry date: Oct 29, 2033

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N27/48
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Methods, systems, and devices are disclosed for the identification of chemical agents and determination of their level of exposure using electrochemical detection and advanced signal processing. In one aspect, a method includes collecting a sample from a surface containing a chemical agent to an electrode on a sensor such that the chemical agent transfers on the electrode, detecting an electrochemical signal of the chemical agent on the electrode to transduce chemical information associated with the chemical agent to an electrical signal, processing the electrical signal to obtain electrochemical spectral signature data to identify the chemical agent and generating a series of coefficients of the electrochemical spectral signature data to reduce the data, and classifying the chemical information based on the series of coefficients among preselected data sets to determine a level of exposure to the chemical agent.