COLORIMETRIC DETECTION METHOD

摘要

A method for detecting the presence of an analyte in a sample, said analyte being chemically non-reactive with lipids or with a polymer having an absorption band which may be shifted from a first wavelength in the visible region to a second wavelength in a visible region, which comprises: a) providing a polymeric matrix comprising said lipids and said polymer; b) introducing into said sample or into said polymeric matrix means enabling said analyte to cause a non-chemical change in said polymeric matrix; and c) contacting the sample with the polymeric matrix and observing a color transition of the matrix, indicating the presence of the analyte.