On-line ultraviolet microwave combined digestion system

A microwave digestion and microwave technology is applied in the field of online ultraviolet-microwave combined digestion system, which can solve the problems of incomplete digestion and difficult complete digestion, and achieve the effects of reliable performance, convenient operation and wide application.

Inactive Publication Date: 2010-02-24
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Abstract
  • Description
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Problems solved by technology

Single thermal digestion generally requires higher temperature and pressure, especially for some organic compounds that are difficult to digest, such as organophosphorus, etc., it is difficult to achieve the purpose of complete digestion, and the digestion is not complete

Method used

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  • On-line ultraviolet microwave combined digestion system
  • On-line ultraviolet microwave combined digestion system
  • On-line ultraviolet microwave combined digestion system

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Experimental program
Comparison scheme
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Embodiment Construction

[0025] this invention figure 1 It is a schematic flow chart of the online UV-microwave combined digestion system, which shows the flow direction of injecting the sample into the UV-microwave combined digestion system under the action of the plunger pump, multi-port valve and various solenoid valves. In practical applications, the liquid inlets are respectively connected with various reagents, and the automatic sample injection control device quantitatively extracts samples and digesters under the action of plunger pumps, multi-way valves and various solenoid valves and adds them to the closed digestion chamber. In the pool, the entire sampling process can be automatically completed under the control of a predetermined program. When the sample to be digested enters the online UV-microwave combined digestion tank, the external microwave energy and the ultraviolet light emitted by the UV light source can pass through the outer wall of the digestion tank and directly act on the sa...

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Abstract

The invention provides an on-line ultraviolet microwave combined digestion system which comprises an automatic liquid inlet control device, an ultraviolet microwave digestion device and a digestion sample circulating pipeline, wherein the automatic liquid inlet control device is connected with the ultraviolet microwave digestion device by a liquid inlet pipeline, and digestion liquid flows into anelectronic condenser to be cooled for reducing the temperature through a liquid drainage pipeline of the ultraviolet microwave digestion device after the digestion is finished. The on-line ultraviolet microwave combined digestion system provides an adaptive digestion technology which has the advantages of convenient operation, reliable performance, complete digestion, wide application and the like for on-line analysis of multiple detection indexes in the fields such as environmental monitoring and the like at the control part of an external computer. The system can complete the processes suchas automatic sampling, digesting, cleaning and the like for one step in an on-line way, and is complete in ultraviolet microwave combined digestion, low in digestion temperature, convenient for operation and reliable in performance.

Description

technical field [0001] The invention relates to an online ultraviolet and microwave combined digestion system, which belongs to the field of sample pre-processing systems in the technical field of environmental monitoring, or the technical field of supporting equipment. Background technique [0002] At present, online analysis technology is widely used in the analysis and detection of various indicators in the field of environmental monitoring because of its characteristics of rapid measurement and real-time monitoring. In the detection process of various indicators, the pre-treatment (digestion) of the sample is very important, and the online digestion device adapted to the online analysis technology has been widely used accordingly. Single thermal digestion generally requires higher temperature and pressure, especially for some difficult-to-digest organic compounds such as organophosphorus, it is difficult to achieve the purpose of complete digestion, and the digestion is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/44F04B49/22
Inventor 魏福祥韩菊王占辉
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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