Method 8081LCS/MS/MSD Spike Solution

4,5,6,7-Tetrabromo-1,1,3-trimethyl-3-(2,3,4,5-tetrabromophenyl)-indane, 1.2ml x 50ug/ml, toluene

Endosulfan (techn.), 10µg/ml in Cyclohexane, 10ml

Isofenphos, 100 µg/ml, Ethyl acetate, 5ml