Metolachlor-d6 (propyl-d6),100 µg/mL,acetonitrile,1mL,

Tetrachloroethene, 2000µg/ml in MeOH, 1ml

Petrochemical Internal Standard C14-C17 4 Analytes, equal Wt.%; unit : 25ml screw-capped bottle n-Tetradecane C14 n-Hexadecane C16 n-Pentadecane C15 n-Heptadecane C17

Methional 13C3 (1,2,3-13C3)