Currently, nitrate concentration measurement can be done by using different techniques (spectrofotometric analysis, ion selective electrode, colorimetric and chromatographic liquid) by taking a sample from the environment and in a non continuous way. The solution allows the study of the sample in situ and in a continuous way by comparing it with the spectral response of some samples of known nitrate concentration (patterns). These are obtained previously in the laboratory and are essential for the calibration of the probe.
Description of the technology
A joint research group of the departments of Geology and Signal Theory and Communications of a Spanish university have developed a probe based on a light source, an optical analyzer with optical fibber connections and a waterproof sensor. This is suitable for measuring nitrate concentration in water (superficial and groundwater) The system works using spectral techniques in the ultraviolet wavelength range. The group is looking for commercial agreement with technical assistance.
Specifications
The main steps in order to measure nitrate concentration in superficial water and groundwater using this spectral techniques in the ultraviolet begin with the obtain the spectral response from the analyzer when immersing the sensor into the water. The computer has some nitrate concentration patters to be compared with the spectral response. An evolutionary programming algorithm is used to decide the best suitable pattern. The best pattern determines the nitrate concentration of the measured water. This system has the following main parts: - Light source made of deuterium-halogen suitable for wavelengths from 200 to 800 nm (ultraviolet and visible). - Optical analyzer suitable for the above mentioned wavelength range. - Fibber optic cable (diameter 400 micron) - Waterproof optical sensor using lenses for light guiding. - Evolutionary programming algorithm for analyzing the optical analyzer response. - Computer.
Main advantages of its use
Applications
Additional information (attached documents)
The Technology Transfer Office at Alcalá University serves as a liaison between the University and its socioeconomic environment in terms of research and innovation. It encorages collaboration between research groups from universities and companies/institutions, with the objective to promote and commercialize research results and scientific capabilities.
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