(+/-)-Geosmin-d5,100 µg/mL,MeOH,1mL

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

Atenolol, 100 µg/ml, Acetonitrile, 5ml

EPA Method 515.1 Internal Standard