Nicht-invasive Stoffanalyse

摘要

The invention relates to a method and to a system for analyzing a substance (100). The method comprises the following steps: arranging an optical medium (10) on a substance surface, such that at least one region of the surface (12) of the optical medium (10) is in contact with the substance surface; emitting an excitation light beam having an excitation wavelength through the region of the surface (12) of the optical medium (10), which is in contact with the substance surface, to the substance surface; emitting a measurement light beam through the optical medium (10) to the region of the surface (12) of the optical medium (10), which is in direct contact with the substance surface, such that the measurement light beam and the excitation light beam overlap on the interface of the optical medium (10) and of the substance surface, on which the measurement light beam is reflected; direct or indirect detecting of a deflection of the reflected measurement light beam in dependence on the wavelength of the excitation light beam; and analyzing the substance (100) based on the detected deflection of the measurement light beam in dependence on the wavelength of the excitation light beam.