Full-automatic permanganate index analyzer

Abstract

The invention discloses a full-automatic permanganate index analyzer. The full-automatic permanganate index analyzer comprises a base, a manipulator and a heating device, wherein an area to be testedand a solvent bottle are arranged at the upper end of the base; the heating device is arranged between the area to be tested and the solvent bottle; one side of the heating device is provided with a liquid adding area; a sample determination position and a titration position are formed in the liquid adding area; one side of the sample determination position is provided with a sampling rotary mechanism; the sampling rotary mechanism is provided with a sampling tube for sampling; one side of the sampling rotary mechanism is provided with a titration rotary mechanism; the titration rotary mechanism is provided with a titration tube; and the titration tube is connected with the solvent bottle through a peristaltic pump. The sample to be tested is quantified in a sampling way instead of the existing sample adding way, so that the residual sample in a pipeline is prevented from entering a reagent bottle once again; pollution to the sample to be tested is avoided; and the detection data accuracy is improved. The sampling tube is directly positioned at a volume scale to be tested for extracting, so that the accuracy of the sample volume to be tested is improved, and the time is saved.

Description

technical field [0001] The invention relates to the technical field of permanganate index analysis equipment, in particular to a fully automatic permanganate index analyzer. Background technique [0002] The permanganate index refers to the amount consumed when treating water samples with potassium permanganate as the oxidant in acidic or alkaline medium, expressed in mg / L of oxygen. Nitrite, ferrous salt, sulfide and other reducing inorganic substances in water and organic substances that can be oxidized under these conditions can consume potassium permanganate. Therefore, the permanganate index is often used as a common indicator of the pollution degree of surface water bodies by organic pollutants and reducing inorganic substances. [0003] When sampling, the existing permanganate index analyzer uses a peristaltic pump as the power source to inject the sample to be tested into the reagent bottle of the disk to be tested. A big problem with this method is that all the sam...

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Problems solved by technology

[0004] The present invention aims at the above-mentioned deficiencies existing in the prior art, and provides a fully automatic permanganate index analyzer, which adopts a sampling method instead of the existing sampling method to quantify the sample to be tested, and the liquid in the sampling tube is only discharged outward. , will not be added to the reagent bottle, although the same root tube is used for each extraction, the residual sample in the tube will not enter the reagent bottle again, will not cause contamination of the sample to be tested, and improve the detection data In addition, due to the sampling method, the sampling tube can be directly located at the scale line of the volume to be measured for extraction, the quantification method is simple, and it avoids the problem that the sample volume cannot be accurately added by the sample addition method, and the volume of the sample to be measured is increased. accuracy, and faster quantification by sampling, saving time

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