Bis(2,4-diisopropylphenyl) phenyl phosphate, 1.2ml x 50ug/ml, toluene

Thallium (Tl)

Acid red 18 (E124), neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 51811-48-4

EPA Method 8260 - Purgeable Internal Standard