The liquid chromatography (LC) is an instrument for separating and analyzing solution samples which is composed of sampling system`,infusion system, separation system,detection system and data processing system.It can be used for constant or trace analysis and detection of liquid or solid samples dissolved in liquid which is widely used in the detection, analysis and data recording of chemical products.

The liquid chromatography uses organic solvent as the mobile phase.In order to avoid the solvent volatilization,the common practice now is to directly punch holes in the cap of the mobile phase to dip the tubing into the solvent and covered with membrane to seal. But this traditional practice have three problems as below:

1.    Not Completely Sealed

If the bottle is completely sealed with the membrane, the air circulation will be blocked, the solvent bottle will form a sealed negative pressure vacuum environment when inject the solvent which made the solvent cannot be extracted. 

2.   Mobile Phase Volatilizes And Pollutes The Environment

Cause the bottle cannot be completely sealed by membrane, the mobile phase will Volatilizes into the air which leads to a large solvent smell and also lead to environmental pollution and seriously damage the health of laboratory staff. 

3.   Dust Enters And Contaminate Mobile Phase

Cause the bottle cannot be completely sealed by membrane,When the chromatography extract the solvent, dust and other impurities in the air will enter the mobile phase bottle together with the air, causing solvent pollution and seriously affecting the analysis results.

The liquid chromatography solvent series safety caps produced by Beijing Auwii Instrument Co., Ltd. can efficiently filter the dust in the air when the solvent is extracted by the chromatography, prevent the contamination of the mobile phase, and ensure the accuracy of the analysis results. When the cinematographic instrument stops working, the bottle will be completely sealed by the safety cap to prevent the volatilization of the mobile phase through the air inlet and protect the laboratory environment from pollution.

Main features of SE-Series Safety caps

Microporous Membrane—— Efficient Filtration

SE series solvent safety cap built-in PTFE microporous membrane which can efficiently filter the air which enter in the bottle when the chromatography extract the solvent to prevent dust contamination and ensure the accuracy of the analysis results;

Non-Return Seal—— Prevent Volatilization

 SE series solvent safety cap adopt high-sensitivity non-return safety valve. Once chromatographic instrument stops working, the safety valve will close and seal automatically to prevent the volatilizing,protect the laboratory environment and maintain the health of humans in the laboratory.

Time Label —— Expire Remind

Press time start button on the valve once start use, the time label will record the use time in the form of a red progress bar, remind the user replace the safety valve on schedule;

Plug Installation—— Easy to Replacement

Adopts quick plug installation design, which can be replaced easily by users;

Multiple types-widely compatible

Model	Profile	Thread Spec
SE45		GL45 Standard   bottle mouth
SE40		GL40 Standard   bottle mouth
SE38		GL38 Standard bottle mouth