NON-ENZYMATIC COLORIMETRIC TEST STRIP AND METHOD FOR DETECTION OF ETHANOL VAPOUR CONTENT

摘要

The present invention relates to a non-enzymatic colorimetric test strip for detection ofethanol vapour content in a vapour sample and a method of detecting ethanol vapourcontent using the test strip. The test strip comprises a substrate having a sampledetection zone and a control zone; a first dye deposited and immobilized onto a regionwithin the sample detection zone; and a second dye deposited and immobilized onto aregion within the control zone. The first dye in the sample detection zone undergoes acolour change in response to ethanol vapour in the vapour sample that comes intocontact with the first dye on the test strip. The method comprises contacting a vapoursample with the first dye in the sample detection zone of the test strip, capturing animage of the entire test strip and performing image analysis of the captured image todetect the presence of ethanol and determine the concentration of ethanol in thevapour sample.