Tender For supply of microbiology and laboratory items bid -hexadecyltrimethylammoniumbromide or hdtma , piperazine n n0 bis 2 ethanesulfonic acid or pipes , phenol red indicator , norris s glucose nitrogen free media , carboxymethylcellulose or cmc , skim milk agar medium , phosphotungstic acid , aleksandrow media , mr vp broth or glucose phosphate broth , barritt reagent a , barritt reagent b , salkowski reagent , ferrous sulfatefeso4 anhydrous , copper ii sulfate cuso4 anhydrous , molybdenum trioxide or molybdic acid