Formaldehyde-DNPH Level 3 (1.0ug/mL)

4 Fluorinated Internal Standard Mix 4 Analytes, each Wt.% as listed; units: 1x10mL, 5x10mL neat Name Wt.% Name Wt.% Fluorobenzene 16.7 1-Fluoronaphthalene 8

Nitric Acid Blank

Thyroxine-13C6, 1mg