PCB No. 156, 100µg/ml in Isooctane, 1ml

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

10-Formyl Folic Acid (>90%), 50mg

Pesticide Mix #14, in Toluene, 1ml