Retention Time Marker Standard

Thiophene in Thiophene-free Benzene Units: 5x1mL ampoule, 10mL screw-capped bottle Chiron No. Concentration Light White Mineral Oil µg thiophene/g (20 cSt at 40°C)

N,N-Diethylmethylamine

2-(2-Chloroethoxy)ethanol