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

Polyphosphoric acids ammonium salt, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 68333-79-9

2,4'-DDE, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 3424-82-6

N-Methyl-N-(trimethylsilyl)trifluoroacetamide,neat,neat,1mL,