Tetrazolium Blue Solution, Alkaline
Immediately before use mix 1 volume of a 0.2% w/v solution of tetrazolium blue in methanol with 3 volumes of a 12% w/v solution of sodium hydroxide in methanol.
Immediately before use mix 1 volume of a 0.2% w/v solution of tetrazolium blue in methanol with 3 volumes of a 12% w/v solution of sodium hydroxide in methanol.