4,4'-DDE-13C12

Daily Quality Control Standard (without Internal Standard) 14 Analytes, each Wt.% as listed; units: 1x10mL, 5x10mL neat Name Wt.% Name Wt.% n-Hexane 12 Toluene 9 n-Heptane 20 Eth

N,N-Dimethylsulfamide, 100 µg/ml, Acetonitrile,

1,2-Dibromoethane