MTBE Residue in Environmental Water and Soil Analysis by Agilent 7820 GC-FID

Version 1

    Application Note



    A method was developed for the detection of MTBE residue in environmental water and soil using an Agilent 7820 GC with FID. The method showed linear calibration with a detection limit range of 4.0–80.0 ng/mL, and an R2 = 0.9996. t-Butyl methyl ether (MTBE) has been used in U.S. gasoline at low levels since 1979, replacing lead as an octane enhancer to help prevent engine knock. Underground storage tank leaks and spills are the major sources of MTBE pollution. Car accidents, boats, and storm water runoff also release gasoline into the environment. MTBE moves quickly through soil, dissolves easily in water, and takes longer to break down than some other chemicals. A growing number of studies have detected MTBE in ground water. In some instances, these are contaminated sources of drinking water. Low levels of MTBE can make drinking water supplies undrinkable owing to its offensive taste and pungent odor. Drinking water regulations indicate that there is little likelihood that MTBE in drinking water will cause adverse health effects at concentrations between 20 and 40 ppb or below. An Agilent 7820 GC with an Agilent 7697A Headspace Sampler were used to measure the MBTE in water and soil in this application note


    Publication number: 5991-4191EN.pdf

    Publication Date: March 28, 2014