Endrin, 1.2mL x 100ug/mL, nonane

2,2',3,4,6,6'-Hexachlorobiphenyl ,100 µg/mL,isooctane,1mL,

WS (drinking water) Quantitative E.Coli

ß-Glucuronidase-arylsulfatase from H. rufescens ,1.0 mu / >0.2 mu,powder,1mu