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Information × Registration Number 0217U000474, 0116U003998 , R & D reports Title Development and implementation of express sensory systems based on three wave photometry for environmental monitoring of different pollutants aquatic environment popup.stage_title Head Goncharyk Vladyslav Volodymyrovych, Registration Date 06-02-2017 Organization A.V Dumansky Institute of Colloid Chemistry and Water Chemistry popup.description2 Objects of research - modeling solutions, natural water. The purpose of the work - the creation and implementation of a portable device suitable for monitoring ekspress water pollution by nitrates and other toxicants. Methods - multiwavelength photometry. Designed a prototype device for determining the concentration of water pollutants in dynamic mode, which includes housing with installed inside the module to a source of UV radiation flowing cuvette and photodetectors. Emitter module equipped with 4 UV LEDs, photodetectors as a device containing UV sensitive photodiodes. Irradiation analyzed water samples and measure its optical density is carried out simultaneously with 4 beams with waves following lengths: 280, 310, 345 and 580 nm. The internal cavity flow cell is equipped with quartz windows, located on one axis and perpendicular. Obtained satisfactory metrological characteristics of the instrument on the basis of determining the concentration of nitrates in model solutions and natural waters. The scheme developed by us introducing device "Sensor-3" as a gauge of contaminants, including nitrates in water. The possibility of the use of sorbents to absorb fulvic acid - a substance that has absorption spectrum along with the absorption spectrum of nitrate ion. Applications: protection of the environment.5481 Product Description popup.authors Бичков Олексій Володимирович Зуй Олег Вікторович Корнієнко Іван Володимирович Ніфантова Лариса Сергіївна Таранов Віктор Васильович popup.nrat_date 2020-04-02 Close