Alternative Standard, 1.2ml, nonane

d2 C27 alpha alpha alpha (20R)-Cholestane, 10µg/mL in Isooctane, 1ml

Acetamiprid D3 (N-methyl D3), 100µg/mL in Acetone, 1ml

Chlorthion, 100 µg/ml, Acetonitrile, 5ml