Benzo(e)pyrene,1000µg/ml in methylene chloride,1ml

d3 C21Monoaromatic Sterane (5 alpha(H)/5ß(H)), 10µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no.

Nonylbenzene, >98%, 25ml

pH 10.01 buffer solution (box of 25x20mL sachet)