90mm petri dish China is a laboratory vessel used for microbial or cell culture, consisting of a flat disc-shaped bottom and a cover, generally made of glass or plastic.
How to use 90mm petri dish China:
Generally, it goes through four steps of soaking, scrubbing, pickling, and cleaning.
1. Soaking: New or used 90mm petri dish China should be soaked in water first to soften and dissolve the attachments. New 90mm petri dish China should be simply scrubbed with tap water before use, and then soaked overnight in 5% hydrochloric acid; used 90mm petri dish China often have a lot of protein and oil, which are not easy to wash off after drying, so they should be immersed in clean water immediately after use Prepare for scrubbing.
2. Scrubbing: Put the soaked 90mm petri dish China into detergent water, and scrub it repeatedly with a soft brush. Do not leave dead space and prevent damage to the surface finish of the utensils. Wash and dry the 90mm petri dish China that have been scrubbed clean, and prepare for pickling.
3. Pickling: Pickling is to soak the above-mentioned utensils in a cleaning solution, also known as acid solution, to remove possible residual substances on the surface of the utensils through the strong oxidation of the acid solution. Pickling should not be less than six hours, usually overnight or longer. Be careful with the utensils.
4. Rinse: The 90mm petri dish China after scrubbing and pickling must be fully rinsed with water. Whether the utensils are rinsed clean after pickling will directly affect the success or failure of cell culture. The 90mm petri dish China after pickling are washed by hand, and each vessel must be repeatedly "water-emptied" at least 15 times, and finally soaked in double-distilled water for 2-3 times, dried or dried, and packed for later use.