Online automatic monitoring system of total nitrogen and total phosphorus in seawater and monitoring method thereof

An automatic monitoring and seawater technology, applied in the field of marine environment monitoring, can solve the problems of inability to meet the requirements of on-board on-site testing, cumbersome, can only be completed in the laboratory, and not suitable for on-site monitoring, etc., to achieve reliable performance, high sensitivity, and easy operation convenient effect
CN101655501AInactive Publication Date: 2010-02-24HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
Publication Date
2010-02-24
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention provides an online automatic monitoring system of total nitrogen and total phosphorus in seawater and a monitoring method thereof. The system comprises an automatic seawater liquid feedcontroller, an ultraviolet microwave digestor, a total nitrogen measuring flow passage, a total phosphorus measuring flow passage and a spectrophotometer, wherein the automatic seawater liquid feed controller is connected with the ultraviolet microwave digestor by a liquid feed pipeline; digested sample flows into an electronic cooler from a liquor drainage pipeline of the ultraviolet microwave digestor to be cooled and respectively enters into the total nitrogen measuring flow passage and the total phosphorus measuring flow passage; the total nitrogen measuring flow passage comprises a nitrate ion reducing device, a sample reaction pipeline is connected with the spectrophotometer, and the front end of the sample reaction pipeline is provided with a nitrite color reagent injecting valve; and the total phosphorus measuring flow passage comprises the structure that the sample reaction pipeline is connected with the spectrophotometer, and the front end of the sample reaction pipeline is provided with an orthophosphate color reagent injecting valve. The invention can complete work procedures such as automatically sampling seawater, digesting, reducing, washing, measuring, and the like,at one time.
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Description

technical field

[0001] The invention relates to an online automatic monitoring system and monitoring method for total nitrogen and total phosphorus in seawater, which is suitable for fast online automatic determination of total nitrogen and total phosphorus in seawater under the condition of providing pretreated seawater samples, and belongs to Marine environment monitoring technology field. Background technique

[0002] At present, phosphorus and nitrogen are one of the main nutrients in seawater, and excessive nitrogen and phosphorus will lead to eutrophication of water bodies. Determination of total phosphorus and total nitrogen in seawater With the advancement of science and technology, the marine environment monitoring technology is developing from manual sampling laboratory analysis to ship-borne automatic monitoring and intelligent and network-based monitoring. However, the detection methods for total phosphorus and total nitrogen in seawater stipulated in the "Marin...

Claims

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