Continuous sample introduction system and continuous sample introduction method of liquid

Abstract

The invention relates to continuous sample introduction system and a continuous sample introduction method of liquid. According to the system, the front ends of a first syringe and a second syringe are connected by a first one-way valve and a second one-way valve to form a first liquid route; a liquid outlet is formed between the first one-way valve and the second one-way valve; the front ends ofthe first syringe and the second syringe are connected by a third one-way valve and a fourth one-way valve to form a second liquid route; a liquid inlet is formed between the third one-way valve and the fourth one-way valve; the rear ends of the first syringe and the second syringe are connected with a movable slide block; the first syringe and the second syringe are located on the two sides of the movable slide block respectively; and a driving device drives the movable slide block to move. The system is simple in structure, easy and simple to operate and easy to control.

Description

technical field [0001] The present invention relates to a liquid continuous sampling system and a continuous sampling method produced by the system. Background technique [0002] In the process of humidity generation, that is, after the gas and liquid are continuously injected and mixed, a standard gas with a certain humidity is generated, which is used to calibrate the humidity measuring instrument. In the prior art, the method of peristaltic pump is usually used to continuously inject liquid in the process of generating humidity, but the problem of fluctuation will occur in the process of continuous injection. In the process of continuous sampling, the rotation of the peristaltic pump will show a ripple curve with the liquid, resulting in a certain degree of fluctuation, which will cause the humidity to show a fluctuation curve. The size of the fluctuation is directly related to the size of the peristaltic pump impeller and the inner diameter of the peristaltic pump tube. ...

AI Technical Summary

Problems solved by technology

In the process of humidity generation, when the humidity of ppm level occurs, the fluctuation effect cannot meet the actual needs, so a new method is needed to realize

Among them, the use of syringe injection can achieve near-zero fluctuation sampling, but the use of syringes cannot continuously inject samples, and usually only a single tube can be injected in one cycle

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