Guanin, 25g

n-Perfluorooctanoic acid, ammonium salt, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 3825-26-1

Butylcyclohexyl phthalate (Mixture with dibutyl and dicyclohexyl phthalates),1000 µg/mL,isooctane,1mL,

2,2',3,3',4',5,6-Heptachlorobiphenyl (177)