Zinc oxide is the metal zinc that has been oxidized. The chemical formula is ZnO, 1 zinc atom and 1 oxygen atom held together by an ionic bond. Zinc oxide does occur in nature as the mineral zincite, but it is quite rare and commercially unavailable.
I have done a few stool samples in my time and have always just stored them in the fridge, until the next day to take them into the docs. Good luck hun I hope they get it sorted.
Oh well... yes it can sit a bit. You just need to keep it in the fridge, or a cooler or something. My aunt had to collect her urine for 24 hours, and she kept it in the fridge.This was a few years ago and I have yet to eat anything that has come from it. evil_kandykid Â· 8 years ago.ou just need to keep it in the fridge, or a cooler or something. My aunt had to collect her urine for 24 hours, and she kept it in the fridge. This was a few years ago and I have yet to eat anything that has come from it. evil_kandykid Â· 8 years ago.