SUBSTANCE OR CONTAMINATION DETECTION

摘要

A spectroscopic method and system detects the amount of one or more substances or contaminants in or on a product, such as fecal contamination on meat samples.

主权项

1. A method for determining the amount of one or more substances or contaminants in or on an illuminated product, the method comprising the steps of:
receiving a first signal indicative of intensity of light emitted from the product across a first waveband, receiving a second signal indicative of intensity of light emitted from the product across a second waveband containing one or more wavelengths associated with the fluorescent properties of the contaminants or substances to be detected, determining or predicting a value indicative of an amount of the substance or contaminant, for each of, or at least one of, the one or more substances or contaminants in or on the product, from the first and second signals and from predetermined information relating to fluorescence behaviour of a same or similar product or a main or more abundant substance of the product isolated from the substance or contaminant (hereinafter referred to as isolated product) and/or relating to the fluorescence behaviour of the substance or contaminant isolated from the product.