Field optical investigating device and detecting method for multiple organic pollutant in sea water

Abstract

The invention provides a field optical measuring device and method for multiple organic contaminations in sea water, which is mainly made up of pulse xenon lamp, diffraction grating sample pool, absorbed light detector, fluorescence detector, filter, sampling inlet pump, control system. The kinds of material can be confirmed according to the spectrum information recorded by fluorescence state generated by the special wavelength laser, and the content can be measured according to the absorption spectrum of the special wavelength. The continuous measurement of chlorophyll-a, phenol, yellow material and oil can be realized with only one device, the detection analyzing program can be simplified; the operation and control are convenient, and it has no contamination to environment.

Description

technical field [0001] The invention belongs to detection instruments and detection methods in the aspect of marine environment monitoring, in particular to an on-site optical measurement device and detection method for various organic pollutants in seawater. Background technique [0002] For a long time, people have used various methods to measure organic pollutants in seawater. Spectrophotometry and laboratory fluorescence methods are usually used for chlorophyll, bromide titration and ultraviolet spectrophotometry are usually used for phenol, and oil is usually used in laboratories. Fluorescence spectrometry, ultraviolet spectrophotometry, infrared spectrophotometry and gravimetric method are used for determination. The yellow substance (soluble colored organic matter containing humic acid, melanin and other complex compounds-the product of organic decomposition is usually called " Yellow substance") is measured by laboratory chemical concentration adsorption method and f...

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Problems solved by technology

[0002] For a long time, people have used various methods to measure organic pollutants in seawater. Spectrophotometry and laboratory fluorescence methods are usually used for chlorophyll, bromide titration and ultraviolet spectrophotometry are usually used for phenol, and oil is usually used in laboratories. Fluorescence spectrometry, ultraviolet spectrophotometry, infrared spectrophotometry and gravimetric method are used for determination. The yellow substance (soluble colored organic matter containing humic acid, melanin and other complex compounds-the product of organic decomposition is usually called " Yellow substance") is measured by laboratory chemical concentration adsorption method and fluorescence method. The above measurement methods are all carried out in the laboratory. These methods have many shortcomings such as difficult sampling, large positioning error, and long test cycle, which require a lot of manpower. , material resources

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