Liquid flow alkalization method and alkalization device

Abstract

A liquid flow basification method and basification device are disclosed which belong to the technique field of chemical analysis. The volatile gas of strong base solution of the diisopropylamine dichloroacetate which penetrates the microporous polytetrafluoroethylene film is mixed with the flowing liquid to realize the auto basification of the liquid, and changes the flow speed to control the PH value. Said device contains: basification bottle and basification pool, the microporous polytetrafluoroethylene is mounted flatwise between the base plate and upper cover, the bore diameter is 20-100 mum, the imports and exports of liquid, flow cavity, basification bottle and the base plate are connected hermetically with the upper cover. The invention is used for the basification of liquid in the chemical analysis, flow circuit short, save time, save agent, avoid the cross contamination and improve the precision of analysis; and the device is simple in structure, easy to disassemble, convenient to maintain and clean, and good utilization effect.

Description

technical field [0001] The invention relates to a liquid flow alkalization method and a device for realizing the method, belonging to the technical field of chemical analysis. Background technique [0002] In conventional chemical analysis, it is necessary to control the pH of the solution, and it is often necessary to alkalize the solution. The traditional method of alkalization solution is to directly add strong alkali liquid, which can also meet the requirements of conventional chemical analysis. In micro analysis, the traditional direct addition method will cause secondary pollution, interfere with the measured substance, and reduce the analysis results. Accuracy; In modern industrial and environmental monitoring and analysis, more and more detection items are micro and trace analysis, so it is particularly important to prevent secondary interference in the detection process. At present, there is also an alkalization method, which uses a 1000 mm long silicone rubber tub...

AI Technical Summary

Problems solved by technology

The traditional method of alkalization solution is to directly add strong alkali liquid, which can also meet the requirements of conventional chemical analysis. In micro analysis, the traditional direct addition method will cause secondary pollution, interfere with the measured substance, and reduce the analysis results. Accuracy; in modern industrial and environmental monitoring and analysis, more and more detection items are micro and trace analysis, so it is particularly important to prevent secondary interference in the detection process

At present, there is also an alkalization method, which uses a 1000 mm long silicone rubber tube and soaks it in an alkalizing agent. The alkalizing agent enters the tube through the silicone rubber tube and mixes with the alkalized liquid flowing in the tube to achieve the alkalinization of the liquid. Purpose, this method, the flow path of the solution is longer, the alkalization effect is not ideal, and it is difficult to meet the requirements of trace analysis

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