537.1 Surrogate primary dilution std

Pentachlorophenol 13C6, 100 ng/µl, 1.1ml

Methoprotryne, 100µg/ml in Acetonitrile, 1ml

2,3,3',4,5,5'-Hexachloro-4'-methoxybiphenyl, 1.2ml x 50ug/ml, nonane