Hi, does anyone knows how to prepare solutions from Benzylpenicillin procaine powder and cefoxitin powder?
I am plating S.aureus and resistant S.aureus, and these are the drugs I got from sigma and fisher(please see the attached figures). I searched for a standard procedure for making a solution from them but could not find a proper one.
Also, can the solutions be stored? Under what condition and for how long?
Thank you very much for helping.