Automatic quantitative evaporation concentration device and corresponding concentration method

Abstract

The invention discloses an automatic quantitative evaporation and concentration device and a corresponding concentration method. The device comprises an automatic sampling and dosing system, an automatic constant volume system, an automatic heating system, a quantitative concentration system, an automatic positioning system and a quantitative evaporation and concentration control box for controlling quantitative concentration equipment. According to the device, the automatic sampling, automatic heating concentration and automatic volume fixing can be realized through a built-in automatic positioning system, solute in a solution can be concentrated by any multiple, human intervention is not needed in the whole concentration process, and pollution possibly generated in the concentration process is reduced.

Description

technical field [0001] The invention belongs to the technical field of evaporative concentration chemical analysis, in particular to an automatic quantitative evaporative concentration device and a corresponding concentration method. Background technique [0002] Limited by the detection accuracy of many instruments, trace amounts of solutes in the solution are often not detected or the detection results have a large deviation. Concentration before concentration is a very effective way. However, the current conventional rotary evaporator and nitrogen blowing instrument are difficult to meet the needs of use, and usually have the following problems: [0003] 1) Lack of accurate sampling positioning and concentration end point positioning means, resulting in inaccurate concentration ratio; [0004] 2) There is a lack of remedial means for the deviation of the concentration end point, resulting in inaccurate concentration end points and affecting subsequent measurements; [...

AI Technical Summary

Problems solved by technology

However, the current conventional rotary evaporator and nitrogen blowing instrument are difficult to meet the needs of use, and usually have the following problems:

[0003] 1) Lack of accurate sampling positioning and concentration end point positioning means, resulting in inaccurate concentration ratio;

[0004] 2) There is a lack of remedial means for the deviation of the concentration end point, resulting in inaccurate concentration end points and affecting subsequent measurements;

[0005] 3) The degree of automation of the equipment is not high, requiring a lot of human intervention, and there is the possibility of artificially introducing pollution and labor costs

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