WS (drinking water) Quantitative E.Coli - QC

Diphenanthro[9,10-b;9',10'-d]thiophene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 202-72-2

2,4-Diaminotoluene,100 µg/mL,acetonitrile,1mL,

Nitrophenols Mix