1,2,4-Butanetriol, 1mg/ml in pyridine, 5 x 20ml

2-Perfluorodecyl-[1,1-2H2]-[1,2-13C2]-ethanol (10:2), 50µg/ml in MeOH, 1,2ml

2,5-Dichlorobiphenyl ,100 µg/mL,isooctane,1mL,

4-n-Nonylphenol, 100 µg/ml, Acetonitrile, 1ml