Glycolic acid (C2H4O3)

Sodium p-n-undecylbenzenesulfonate, 100µg/mL in MeOH, 1ml

m-Xylene, 5ml

Daily Quality Control Standard (with 4 Fluorinated Compounds Internal Standard) 14 Analytes + 4 ISTD, each Wt.% as listed; units: 1x10mL, 5x10mL neat Name Wt.% Name Wt.% n-Hexane 12 Toluene 9 n-Heptane 17