pH 5.0 Standard @ 25°C

2,4-Dinitroanisole, 1000μg/ml in MeOH, 1ml

2,2-Bis(chloromethyl)-1,3-propandiol bis[bis(2-chloroethyl) phosphate],50 µg/mL,toluene,1mL,

alpha-Zearalanol, 10.0 µg/ml, Acetonitrile, 1ml