Diluent for trimethoprim in antibiotic disc for sensitivity testing is
Na OH solution
Na hco3
Ethanol
Acetic acid
Diluent for trimethoprim in antibiotic sensitivity testing is acetic acid Sod bicarbonate for amoxicillin and ceftazidime Ref: Textbook of Microbiology Baveja 4th ed Pg 629
general microbiology