Mass-Labelled PCB Internal/Recovery Standards, 1.2ml, nonane

Metazachlor ethane sulfonic acid (ESA), 10mg

2,2',3,4,4',5,6,6'-Octachlorobiphenyl, 100 µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 74472-52-9

Cycloartane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 511-64-8