EPA Method 524 & 624 - Internal Standard

(±)-Atenolol-d7 (N-isopropyl-d7),100 µg/mL,MeOH,1mL,

η-1,2,5,6,9,10-Hexabromocyclododecane, 1.2ml x 50ug/ml, toluene

Clothianidin, 100 µg/ml, Acetonitrile, 5ml