Hexachlorobenzene, 100µg/ml in MeOH, 1ml

2-Mercaptoethanol, 1000mg

n-C17/(n-C17 + n-C27) (Integration control) 2000 µg + 500 µg in isooctane solution in 1mL isooctane n-Heptadecane/n-Heptacosane = 4:1

2,3-Dimethylheptane