Standard product is a measure of the Chinese medicine standard reference product research center agent, used as a drug, it is the standard content in the content determination. Standards include stoichiometric standards, metallurgical standards and drug testing standards. So what are the common standard preservation methods? The following is a small edition of Bolinda to introduce you.

Common standard storage methods:

1, room temperature storage: usually used for chemically stable standard products, it is recommended to keep in a dry and cool place.

2, +4 degrees refrigeration: for substances that are not very stable at room temperature, stored in the refrigerator cold room.

3, -20 degrees freezing: for chemical instability, easy to decompose at room temperature substances.

4, -80 degrees freezing: some active substances need to be stored in a specific -80 degrees refrigerator.

For standard products formulated into solution:

Store in a cool, dry place at room temperature unless the product label indicates refrigerating or freezing. Because the substance is not easy to decompose at low temperatures, but the low temperature reduces the solubility of the compound, which leads to the crystallization of the compounds that are difficult to dissolve at normal temperature when placed at low temperatures for a long time, and once the crystallization is difficult to dissolve again.

For already opened standards:

The solution type of product is best used once, if not, please try to transfer to a container that can avoid volatilization of the solution, according to the label of the product to save. However, in the process of preservation, there is a high possibility that the value of the component is not consistent with COA due to the volatilization of the solution.

The above content is the introduction of the common standard storage methods, standard products should be stored in the dryer or other suitable containers, each dryer or container should be different from the standard number of the special code to show the storage location. The dryer is placed in a special cabinet, arranged in order, and managed by a special person. The administrator checks the temperature and humidity once a day in the afternoon and makes records. Where it does not meet the requirements of the provisions, it shall be adjusted and corrected in time.