Mass-Labelled HCH Solution/Mixture, 2µg/ml in Nonane, 1,2ml

2,4'-DDE D8, 100µg/mL in Acetone, 1ml

EPA O-FID Quantitative Calibration Check Standard (without Internal Standard) 4 Analytes, each Wt.% as listed in RFA Gasoline; units: 1x10mL, 5x10mL Name Wt.% Name Wt.% Methanol 4.0Methyl tert-butyl eth

Custom Mix of PAHs, PAH-Mix 71, 12 compounds, 100ug/mL in toluene 1x10mL 0260.16 Fluoranthene 0235.16 Pyrene 0201.18 Benz[a]anthracene 0212.18 Chry