Automatic analyzer for index of permanganate in water and analysis method

A technology of permanganate index and automatic analyzer, which is applied in material analysis by observing the effect on chemical indicators, and analysis by chemical reaction of materials, etc., can solve the problem of large amount of samples and reagents and time-consuming analysis. Cumbersome, difficult batch analysis and other problems, to achieve the effect of fast test speed, good repeatability and high sensitivity

Active Publication Date: 2016-07-06
BEIJING BAODE INSTR CO LTD
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Problems solved by technology

[0005] At present, the determination of permanganate index mainly adopts the water bath heating oxalic acid titration method of the national standard GB11892-1989. This method has the disadvantages of large amount of samples and reagents, time-consuming analysis, poor precision, and difficulty in batch analysis.

Method used

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  • Automatic analyzer for index of permanganate in water and analysis method
  • Automatic analyzer for index of permanganate in water and analysis method
  • Automatic analyzer for index of permanganate in water and analysis method

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Embodiment Construction

[0037] An automatic analyzer for permanganate index in water according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0038] Such as figure 1 The automatic permanganate index analyzer in water shown includes a peristaltic pump 1 , a chemical flow path, a detector 3 , and a data processing system 4 . The chemical flow path includes an electric valve 6 , a tee 7 , a heater 8 , a back pressure reaction tube 9 , a capillary connecting tube, a sample loop 19 , at least three peristaltic pump tubes, a container bottle, and a flow cell 10 . The container bottle includes a carrying bottle 24 , a potassium permanganate bottle 25 and a waste liquid pool 20 . At least three peristaltic pump tubes include a sample pump tube 13 , a carrier pump tube 14 and a developer pump tube 16 . The electric valve 6 has at least six interfaces, which are D interface, E interface, F interface, G interface, H interface and I in...

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Abstract

The invention discloses an automatic analyzer for an index of permanganate in water and an analysis method. The automatic analyzer comprises a peristaltic pump, a chemical flowing path, a detector and a data processing system, wherein the chemical flowing path comprises an electric valve, a tee joint, a heater, a back pressure reaction pipe, a capillary connection pipe, a sample ring, at least three peristaltic pump pipes, a vessel bottle and a flowing basin; the electric valve is provided with at least six connectors and has two states; the first state is a sample carrying state, and the second state is a sample injection state. The automatic analyzer can continuously and automatically digest and test samples, and is high in test speed, high in test sensitivity, high in accuracy, high in precision and high in repetitiveness.

Description

technical field [0001] The invention relates to an automatic analyzer and an analysis method for permanganate index in water, in particular to an automatic analyzer and an analysis method for measuring permanganate index in water by using flow injection colorimetry. Background technique [0002] The permanganate index refers to certain organic and inorganic oxidizable substances in water samples oxidized with potassium permanganate under certain conditions, and the equivalent amount of oxygen is calculated from the amount of potassium permanganate consumed, expressed in units of oxygen Concentration (mg / L), expressed in IMn, is also called chemical oxygen demand (manganese method), namely COD (Mn). [0003] The permanganate index is a commonly used indicator to reflect the pollution of organic and inorganic oxidizable substances in water bodies, but it cannot be used as an indicator of theoretical oxygen demand or total organic content, because many organic substances can on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78
CPCG01N21/78
Inventor 王淦芮贾立明
Owner BEIJING BAODE INSTR CO LTD
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