Concentration self-adaption detection device and method for total nitrogen/total phosphorus of seawater

A detection device and self-adaptive technology, applied in the measurement of color/spectral characteristics, etc., can solve the problems of the service life of consumable components, high cost, and the inability to guarantee the constant light source intensity, etc., and achieve the adjustable reference light intensity and compact structure. Effect
CN110426359AInactive Publication Date: 2019-11-08OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI
Publication Date
2019-11-08
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the technical field of marine environment monitoring and relates to an online monitoring and in-situ monitoring device and method for total nitrogen / total phosphorus of seawater. The detection device comprises a first flowing channel and a second flowing channel which are connected in sequence; the first flowing channel or the second flowing channel comprises a base, a light splitting assembly, LED light sources, a photodiode and a flowing pond; the light splitting assemblies and the flowing ponds are embedded in the bases; light through holes are formed between the light splitting assemblies and the flowing ponds; the LED light sources are optically connected with the light splitting assemblies; one photodiode is vertical to the LED light sources; the other photodiode is horizontal to the LED light sources; the optical length of the flowing pond of the first flowing channel is greater than that of the flowing pond of the second flowing channel. According to the device and method, the influence of light source fluctuation caused by other factors on the defection result can be eliminated, high sample concentration or low sample concentration can be measuredat a time, and the device and method have the advantages that a high-concentration sample does not need to be diluted, the structure is relatively compact, and the reference light intensity can be adjusted.
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Description

technical field

[0001] The invention belongs to the technical field of marine environment monitoring, and relates to an on-line monitoring and in-situ monitoring device and method for total nitrogen and total phosphorus in seawater. Background technique

[0002] In the 21st century, mankind has entered a period of large-scale development and utilization of the ocean. my country is both a land power and a sea power. The red tides and Enteromorpha outbreaks that occur every year from south to north in my country's coastal areas are a hurdle that hinders the sustainable development of the ocean and the protection of the blue ocean. The main reason for this phenomenon is that the enrichment of nitrogen and phosphorus nutrients leads to water bodies Eutrophication. Therefore, real-time and accurate monitoring of the content of total nitrogen and total phosphorus in seawater can provide an important decision-making basis for protecting the ocean and controlling the deterioration ...

Claims

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