(1988) A new method for field analysis of soils
Hewitt, A.D., P.H. Miyares, D.C. Leggett and
contaminated with aromatic hydrocarbon com-
T.F. Jenkins (1992) Comparison of analytical
pounds. In FOCUS Conference on Eastern Regional
methods for determination of volatile organic
Water Issues, National Water Well Association,
compounds. Environmental Science and Technology,
September, Stamford, Connecticut, p. 223248.
Hewitt A.D. (1994a) Comparison of methods for
Illias, A.M. and C. Jaeger (1993) Evaluation of
sampling vadose zone soils for the determination
sampling techniques for the analysis of volatile
of trichloroethylene. Journal of the Association of
and total petroleum hydrocarbons (TRPH) by IR,
Official Analytical Chemists, 77(2): 458463.
GC, and GC/MS methods. Hydrocarbon Contami-
Hewitt A.D. (1994b) Preparation of spiked soils
nated Soils, 3: 147165. Chelsea, Michigan: Lewis
by vapor fortification for volatile organic com-
pound analysis. Journal of the Association of Official
Pignatello J.J. and B. Xing (1996) Mechanisms of
Analytical Chemists, 77(3): 735737.
slow sorption of organic chemicals to natural par-
Hewitt, A.D. (1995a) Enhanced preservation of
ticles. Environmental Science and Technology, 30(1):
volatile organic compounds in soil with sodium
bisulfate. USA Cold Regions Research and Engi-
Sawhney, B.L. and M.P.N. Gent (1990) Hydro-
neering Laboratory, Special Report 95-26.
phobicity of clay surfaces: Sorption of 1,2-
Hewitt A.D. (1995b) Preservation of volatile or-
dibromoethane and trichloroethylene. Clays and
ganic compounds in soil subsamples. American
Minerals, 38: 1420.
Environmental Laboratory, August.
Urban, M.J., J.S. Smith, E.K. Schultz and R.K.
Hewitt, A.D. and N.J.E. Lukash (1996) Obtaining
Dickinson (1989) Volatile organic analysis for a
and transferring soils for in-vial analysis of vola-
soil, sediment or waste sample. In 5th Annual Waste
tile organic compounds. USA Cold Regions Re-
Testing and Quality Assurance Symposium, U.S. En-
search and Engineering Laboratory, Special Re-
vironmental Protection Agency, Washington,
D.C., p. II-87II-101.
Hewitt A.D. and S.A. Shoop (1994) Rapid assess-
U.S. Environmental Protection Agency (1986) Test
ment of trichloroethylene in ground water. Ground
Water Monitoring and Remediation, 3: 116122
Hewitt, A.D., T.F. Jenkins and C.L. Grant (1995)
Wrigley M.J. (1995) Application of a passive soil
Collection, handling, and storage: Keys to im-
vapor survey at a former manufactured gas plant.
proved data quality for volatile organic com-
Presented at The 27th Mid-Atlantic Industrial and
pounds in soil. American Environmental Labora-
Hazardous Waste Conference, 912 July, Lehigh Uni-
versity, Bethlehem, Pennsylvania.