Tetracontane, >97%, 1g

N-Nitroso-N-ethylaniline, 100μg/ml in MeOH, 5ml

2,2',3,3',4',5,6-Heptachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 52663-70-4

pH 10.01 buffer solution (box of 25x20mL sachet)