TPH Internal Standard

n-Alkanes mixture C20+C40 1140,20 Eicosane 1160,40 n-Tetracontane Conc: 100µg each/mL in n-Pentane Units: 5mL in Screw-cap bottles

Citric acid [1% wt]

Nitrothal-isopropyl, 100 µg/ml, Acetonitrile, 5m