Chemical analysis standard substance storage device

Abstract

The invention provides a chemical analysis standard substance storage device, which consists of a standard storage unit, wherein the standard storage unit comprises a sealed storage mechanism and a bottom base; the sealed storage mechanism is fully filled with protection media; the bottom base is arranged in a way of being matched with the sealed storage mechanism; an inflating connector matched with a gas inlet formed in the bottom of the sealed storage mechanism is arranged on the bottom base; the top of the sealed storage mechanism is provided with at least one exhaust opening; the sealed storage mechanism is externally connected with an air source; through a gas path, inert gas is controlled by a regulating valve, then enters the device through the inflating connector arranged on the bottom base via the air inlet formed in the bottom of the sealed storage mechanism, and is exhausted through the exhaust opening; the sealed state inside the sealed storage mechanism is realized. The chemical analysis standard substance storage device has the advantages that a feasible scheme is given by combining the laboratory conditions according to various problems occurring when standard substances are stored for a long time; the cost is low; the use is easy; safety and reliability are realized.

Description

technical field [0001] The invention relates to a substance storage device, in particular to a standard substance storage device for chemical analysis, and belongs to the technical field of article storage. Background technique [0002] According to the information released by the China National Accreditation Service for Conformity Assessment, as of the end of June 2014, CNAS has accumulatively recognized 136 certification bodies of various types. 5154 and 725 calibration laboratories. Most of these laboratories include the field of chemical analysis. According to the requirements of CNAS, it is required to store all kinds of standard materials necessary for carrying out experiments, including chemical analysis standard materials. The storage method of standard materials should generally be airtight and kept away from light, and there are also special storage requirements (such as low temperature, light-proof, etc.). phenomenon (oxidation, electrochemical corrosion, moistu...

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Problems solved by technology

[0003] At present, in the field of chemical analysis, except for standard solutions and reference reagents that require low temperature and light protection, most solid (blocky, chip) standard substances are stored in simple glass bottles, plastic bottles, wooden boxes or packaging boxes provided by manufacturers. , and then the laboratory is only stored in a general storage cabinet. There is no problem in short-term use, but the validity period of such reference material certificates is mostly more than 10 years. During long-term storage, the reference material will be gradually eroded by the storage environment. It can only be discarded until the analysis result

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