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Total organic carbon online analyzer and method for analyzing total organic carbon

A total organic carbon and analyzer technology, applied in the direction of analyzing materials, material analysis through optical means, instruments, etc., can solve the problems of low instrument precision, high price, and many consumables, and achieve wide application prospects without secondary Pollution, the effect of simple working principle

Inactive Publication Date: 2010-12-08
浙江环茂自控科技有限公司
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Problems solved by technology

This method completely oxidizes organic matter, but the disadvantage is that too many consumables are needed to measure water samples, and the price is relatively expensive.
[0008] At present, there are instruments made using these principles on the market, but the main problems are as follows: 1. Domestic instruments have low precision and high detection limits, and can only be used for the determination of high-concentration TOC in freshwater systems such as industrial sewage, and cannot meet the requirements of low-concentration TOC in water. Analysis of TOC; 2. Imported instruments are expensive, and the oxidation tubes in key parts need to be replaced frequently, which not only causes high measurement costs, but also increases the difficulty of instrument maintenance and affects the continuity of data; It is very good to realize the automatic online monitoring of TOC, especially it cannot realize real-time measurement, and cannot meet the needs of all-round and three-dimensional monitoring
Moreover, the conductometric method is generally only suitable for water quality with low salt content, while hydrogen flame ionization is expensive and not suitable for online monitoring

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  • Total organic carbon online analyzer and method for analyzing total organic carbon
  • Total organic carbon online analyzer and method for analyzing total organic carbon

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Embodiment Construction

[0060] The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings.

[0061] Provided here is a preferred method for analyzing total organic carbon in water using a total organic carbon on-line analyzer of water quality. The total organic carbon on-line analyzer of this water quality includes a sampling section, a circulation detection section and a central control unit 6, Wherein, the sampling section includes a sampling tube 23, a multi-way valve 2, an acid bottle 25, a syringe pump 1, a first flow meter 8, and a first electromagnetic valve 7, wherein the multi-way valve 2 at least includes a first inlet and outlet, The second inlet and outlet 202, the third inlet and outlet 203, the fourth inlet and outlet 204, the fifth inlet and outlet 205, the sixth inlet and outlet 206 and the seventh inlet and outlet 207; the cycle detection part includes a carrier gas input pipe 14, a pressure regulating valve 13, a ...

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Abstract

The invention discloses a total organic carbon online analyzer for water, which mainly comprises an injection pump, a multi-ported valve, an oxygen diffusion pipe, a combustion furnace, a platinum catalyst, a condenser and a carbon dioxide gas detector (NDIR). The invention also relates to a method for analyzing the total organic carbon in the water by using the total organic carbon online analyzer for water. The total organic carbon online analyzer and the method can detect 0-2,000ppm water samples, and have the advantages of simple working principle, stability, reliability, low reagent consumption, no secondary pollution, simple and easy use, and wide application prospect in the water quality environment monitoring industry.

Description

technical field [0001] The invention relates to an online total organic carbon (TOC) analyzer for water quality, and also relates to a method for analyzing total organic carbon in water by using the online total organic carbon analyzer for water quality. Background technique [0002] Total Organic Carbon (TOC: Total Organic Carbon) is a comprehensive indicator that characterizes the total amount of organic matter in water, and it represents the sum of organic matter in water. TOC can not only reflect the degree of pollution of water body by organic substances, but also can reflect the situation of life activities in water body as a biogenic element. Moreover, TOC plays an important role in the study of the global cycle of carbon. At present, TOC measurement has been widely used in rivers, lakes and ocean monitoring, and has gradually become a routine parameter for water quality monitoring. [0003] The determination of TOC in water usually consists of three steps: 1. Pretre...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/17G01N21/35G01N21/3577
Inventor 徐乔根陈志高
Owner 浙江环茂自控科技有限公司
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