2,4'-Dichlorobenzophenone, 100 µg/ml, Ethyl aceta

2,2',3,3',5,6'-Hexachlorobiphenyl,100 µg/mL,isooctane,1mL,

Diuron, 100μg/ml in MeOH, 1ml

WS inorganic disinfection by-products, B