795
Anal. Chem. 1983, 55, 795-796
Additional experiments with hydrocarbon test substances were performed by using the direct application method. Thus, when n-octadecane (50 pg in 0.5 pL of ethyl acetate) was applied to a 4 x 50 mm trap and the trap flushed with 500 mL of water at 6 mL/min, no hydrocarbon (
