Endosulfan sulfate (13C9), 100µg/mL in Nonane, 1,2

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

1-Chloro-2,4-dinitrobenzene, 1000µg/ml in MeOH, 1ml

Nortriptyline-d3 hydrochloride (N-methyl-d3)