Concentrator

Abstract

The invention discloses a concentrator, including a box body, a water bath, a support, an airflow generator, a jacketed condenser and a liquid level detection module. The box body is provided inside with a groove; the water bath is arranged in the groove; the water bath and an electric heating plate are fixedly connected; the water bath is provided with a water inlet and a water outlet; the bottom of the support is fixedly connected with the box body; the airflow generator is fixed on the support in a hanging way; the airflow generator includes an electric motor, an impeller and a drainage cover; the jacketed condenser and the open end of the drainage cover are fixed in abut joint; the jacketed condenser includes a condenser tube, a jacketed pipe, a waste liquid collection tank and a drainage pipe; the liquid level detection module includes a photoelectric sensor, a data acquisition card and a data acquisition controller; a photoelectric sensor is arranged in the box body horizontally; and the light emission port of the photoelectric sensor and a terminal liquid level line are at the same height. The concentrator is compact in structure and easy to operate, significantly shortens the concentration process, and can accurately detect the terminal liquid level of a concentration sample.

Description

technical field [0001] The invention relates to the technical field of detection instruments, in particular to a concentrator. Background technique [0002] In a large amount of analysis work, especially in the field of environmental pollutants and food safety analysis, in order to obtain the residual amount of the target compound, it is necessary to pretreat the sample for inspection. The process mainly includes sample extraction (extraction), concentration, purification and Concentration and other basic steps. Among them, how to quickly and losslessly concentrate is a very critical part. The solution is composed of solute and solvent. Solution concentration is a technique to evaporate the solvent in the solution, reduce the submission of the solution, and increase the solute concentration of the solution. The evaporation speed of the solvent in the solution is affected by three factors: temperature, surface area, and air flow in the surface area. The higher the temperatu...

AI Technical Summary

Problems solved by technology

[0003] The concentrators in the prior art are bulky and inconvenient to carry and use; the effect of accelerating the volatilization of organic solvents through airflow is not obvious, and the concentration process takes a long time. The open water bath heating tank is used, and the effect of fast evaporation is poor, and the temperature of the water bath is also difficult to control , the end point level of the concentrated liquid cannot be accurately detected, resulting in a large error in the target volume of the concentrated liquid. At the same time, the existing concentrator adopts the structure of a single sample concentrating tube, and the work efficiency is low

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