WS (drinking water) Quantitative E.Coli

1,2,4,5-Tetrachlorobenzene

Fenthion-d6 (O,O-dimethyl-d6), 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1189662-83-6

1-Nonanol, 1ml