Internal standard 2, 2000g/ml in MeOH, 1ml

2-Ethylpyrazine, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no. 13925-00-3

EPA Method 8280 Calibration Kit, 5 ampoules, nonane

1,2,3,4,6,7,8-Heptachlorodibenzo-p-dioxin ,50 µg/mL,n-nonane,1mL,