2,4'-DDD, 100mg

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

Arsenic (As)

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