Perfluoro-4-ethylcyclohexanesulfonate, 50µg/ml in MeOH, 1,2ml

N,N-Dimethylcarbanilide, 25mg

EPA Method 537 Analyte Primary Dilution Standard, 2000ng/ml in MeOH, 1,2ml

2,4,8-Trichlorodibenzofuran, 1.2ml x 50ug/ml, nonane