Container, device and method for preparing standard substance of volatile organic mixed solution

Abstract

The invention relates to a container, device and method for preparing a volatile organic mixed solution standard substance. The container for preparing the volatile organic mixed solution standard substance comprises a narrow-mouthed bottle, a bottle cap, a first sealing plug and a second sealing plug, wherein the bottle cap is covered on a bottle opening of the narrow-mouthed bottle; a solution-taking through hole and a balancing through hole are formed in the top of the bottle cap; the solution-taking through hole and the balancing through hole are communicated with the internal of the narrow-mouth bottle; the first sealing plug can be arranged in the solution-taking through hole, and the second sealing plug can be arranged in the balancing through hole. The technical scheme provided by the invention can effectively inhibit the volatization of easily volatile components in the preparation process of the organic mixed solution standard substance, and can inhibit the volatization of the easily volatile components in the subpackage process of the organic mixed solution standard substance, and guarantees the accuracy in the configuration and subpackage process of the organic mixed solution standard substance.

Description

technical field [0001] The invention relates to a glass container, in particular to a container, device and method for preparing a standard substance of a volatile organic mixed solution. Background technique [0002] The standard substance of the volatile organic mixed solution is usually prepared by the gravimetric method, that is, in a volumetric flask or other container, add a variety of liquid organic pure substances in sequence, and weigh the added organic pure substances. According to the quality of each pure substance and For its purity, calculate the content of the organic compound in the mixed solution. The volatilities of various liquid organic compounds are different, and the order of addition is different. During the preparation process, they volatilize into the environment, or the quality of the space above the solution in the container is different, so that the gravimetric preparation results deviate from the actual content of each organic compound. [0003] ...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that during the preparation process, the head space above the solution in the container becomes larger, the more volatile components escape, and the content of this component in the solution decreases, which deviates from the result prepared by the gravimetric method. At the same time, the content of each component of the standard substance The bottle-to-bottle uniformity of the

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