TFA; Trifluoroacetic acid, 99,9%, 250g

Chlorthion, 10.0 µg/ml, Ethyl acetate, 10ml

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

2-n-Octylphenol-mono-ethoxylate, 100 µg/ml, Aceto