2,2’,3,5’-Tetrachlorobiphenyl (44)

D4-Azaperol, 10mg

Daily Quality Control Standard (without Internal Standard) 13 Analytes, each Wt.% as listed; units: 1x10mL, 5x10mL neat Name: Wt. % Name Wt. % 1232.6 n-Hexane

Methadone/Methaqualone/Propoxyphene