Diethylene glycol monomethyl ether, 250mg

Gasoline ID Standard

Sodium 1H,1H,2H,2H-perfluorodecane sulfonate (8:2), 50µg/ml in MeOH, 1,2ml

2,2-Bis(4-hydroxyphenyl)propane, 1.2ml x 50ug/ml, methanol