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- W2363984776 abstract "This paper is aimed to make a research advance review on the submersible water-quality monitoring systems on the basis of the spectral ultraviolet principle.As is known,water pollution control and prevention has been more and more demanding to call for real-time,online and portability in testing and controlling the water quality.Online monitoring in this way even asks for providing such parameters as chemical oxygen demand(COD)and nitrate nitrogen,which used to be gained in the laboratory through chemical experiments with the help of valves and pipes,and,therefore,ask for a longer analysis time and chemical reagents and waste recycling.To overcome such inconveniences and meet the above,we are inclined to introduce an online testing technology of direct determination of COD and nitrate nitrogen content based on the ultraviolet absorption,which is by nature a kind of online detection technology without chemical reagents and pre-treatment samples.We have also introduced in this paper a novel water quality monitoring system for COD and nitrate nitrogen based on UV-visible spectrometry,consisting of a pulsed xenon lamp,concave holographic grating and a spectral scanning structure,which is capable to determine any spectrum of water in the 200-720 nm range.By using a rod-like instrument that can be put into the water to do the testing directly,detecting the COD and nitrate nitrogen concentration in the water by testing the UV absorbance.In so doing,the above mentioned methods can be adopted to classify the samples through a series of experiments with standard solution of the potassium hydrogen phthalate and standard solution of the Potassium nitrate.In addition,we have also found a suitable mathematical model to test water for its contaminants from the database so as to enhance the ability of the UV water testing technology and gain other water quality indices.Besides the above review,we have also done some water samples experiments ourselves to raise the availability and feasibility of the instruments under test by means of actual water samples of COD and nitrate nitrogen content prepared by ourselves.Thus,it can be seen that the above technical review and our own research activities are expected to provide a new kind of green detection technology for surveying the pollution sources and monitoring of surface water origins such as that in lakes,rivers and so on." @default.
- W2363984776 created "2016-06-24" @default.
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- W2363984776 date "2012-01-01" @default.
- W2363984776 modified "2023-09-23" @default.
- W2363984776 title "On submersible water-quality monitoring systems based on spectral ultraviolet method" @default.
- W2363984776 hasPublicationYear "2012" @default.
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