A flow injection micro-Raman spectroscopy device and detection method for water pollutant detection

Abstract

The invention relates to a flow injection microscope raman spectrum device for water pollutant detection and a detection method and belongs to the technical field of monitoring for the water environmental pollution. The device comprises a sample feeding module, a power supply module, an optical collecting module, a detecting analysis module, a result display output module and a positioning and wireless communication module, wherein the power supply module is used for supplying electric energy to the whole detection device and performing power supply management; the sample feeding module is used for conveying a to-be-detected water sample into a micro-fluidic chip through a micro-pump and a filtering device; the accurate positioning and focusing between the micro-fluidic chip and a microscope raman module are realized by adjusting the position of a displacement adjusting platform; a raman scattered signal of the to-be-detected water sample is collected by the optical collecting module, is subjected to photovoltaic conversion and then is sent to the detecting analysis module for testing the ingredients and contents of the pollutants in the to-be-detected water sample; a detection result is output and displayed on a display terminal; the position of a to-be-detected water sample point and the condition of the water pollution are transmitted to a superior monitoring center through the positioning and wireless communication module, so that the remote real-time monitoring is realized. The flow injection microscope raman spectrum device provided by the invention is compact in structure, is convenient in operation and accurate in detection, and can be used for realizing quick online detection on the water quality of river, lack, urban sewage, and the like.

Description

technical field [0001] The invention belongs to the technical field of water environment pollution monitoring, and relates to a flow injection micro-Raman spectroscopy device and a detection method for detecting water body pollutants. Background technique [0002] In recent years, with the development of industry, the acceleration of urbanization and the expansion of population, my country's demand for water resources is increasing day by day; at the same time, the wanton discharge of a large amount of industrial wastewater and urban and rural domestic sewage has led to the deteriorating quality of surface water and groundwater , rivers and lakes water pollution and drinking water safety problems occur from time to time, seriously restricting the sustainable development of economy and society. Real-time detection, analysis and prediction of water quality parameter status, change law and evolution trend are important means for water environmental pollution control and treatmen...

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Problems solved by technology

Patent CN 103808948 A discloses a microfluidic chip system and method for on-site detection of pesticide residues. The microfluidic chip is mainly used to quickly and accurately measure pesticide residues through the absorbance method, but Raman spectroscopy is not involved.

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