Sulfur in Isooctane - 0.01 Wt%

n-C30/n-C20, n-Triacontane/n-Eicosane (Integration control) 1000 µg n-Triacontane and 2000 µg n-Eicosane in 1mL isooctane n-Triacontane/n-Eicosane = 1:2

Monoisobutyl phthalate-3,4,5,6-d4, 100µg/ml in MeOH, 1ml

Perfluoro-n-[1,2,3,4-13C4]heptanoic acid, 1.2ml x 50ug/ml, methanol