Herbicide Metabolites in Surface Water and Groundwater by Michael T. Meyer, E.M. Thurman

By Michael T. Meyer, E.M. Thurman

content material: Herbicide metabolites in floor water and groundwater : advent and evaluation / E.M. Thurman and M.T. Meyer --
Coordinating supercritical fluid and solid-phase extraction with chromatographic and immunoassay research of herbicides / Martha J.M. Wells and G. Kim Stearman --
A high-performance liquid chromatography-based screening approach for the research of atrazine, alachlor, and ten in their transformation items / Blaine R. Schroyer and Paul D. Capel --
elements influencing the specificity and sensitivity of triazine immunoassays / Timothy S. Lawruk ... [et al.] --Standardization of immunoassays for water and soil research / Bertold Hock ... [et al.] --
In situ derivatization-supercritical fluid extraction process for the selection of chlorophenoxy acid herbicides in soil samples / Viorica Lopez-Avila, Janet Benedicto, and Werner F. Beckert --
software of in vivo fluorometry to figure out soil mobility and soil adsorptivity of photosynthesis-inhibiting herbicides / Daisuke Yanase ... [et al.] --
Interactions among atrazine and smectite surfaces / David A. Laird --
Estimation of the opportunity of atrazine shipping in a silt loam soil / David A.V. Eckhardt and R.J. Wagenet --
The impact of ammonia on atrazine sorption and shipping / S.A. Clay ... [et al.] --
destiny of a symmetric and an uneven triazine herbicie in silt loam soils / W.C. Koskinen, J.S. Conn, and B.A. Sorenson --
destiny of atrazine and atrazine degradates in soils of Iowa / Ellen L. Kruger and Joel R. Coats --
delivery of foodstuff and postemergence-applied herbicides in runoff from corrugation irrigation of wheat / A.J. Cessna ... [et al.] --
capability flow of convinced insecticides following program to golfing classes / A.E. Smith and D.C. Bridges --
Relation of panorama place and irrigation to concentrations of alachlor, atrazine, and chosen degradates in regolith in northeastern Nebraska / Ingrid M. Verstraeten ... [et al.] --
The environmental impression of pesticide degradates in groundwater / Michael R. Barrett --
Herbicide mobility and edition in agricultural runoff within the Beaver Creek watershed in Nebraska / Li Ma and Roy F. Spalding --
tracking insecticides and metabolites in floor water and groundwater in Spain / D. Barceló ... [et al.] --
Hydroxylated atrazine degradation items in a small Missouri flow / Robert N. Lerch ... [et al.] --
review of herbicide delivery and endurance in groundwater : a assessment / S.K. Widmer and Roy F. Spalding --
Cyanazine, atrazine, and their metabolites as geochemical signs of contaminant shipping within the Mississippi River / M.T. Meyer, E.M. Thurman, and D.A. Goolsby.

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Example text

Rubio , and David P. O. Box 55116, Fargo, ND 58105 2 The use of immunochemical methods to assess the quality of surface and ground water has become a valuable complement to conventional methods such as GC and HPLC. Immunoassays for water analysis have proven to be rapid, sensitive and convenient, allowing a large number of samples to be screened without prior sample preparation. Magnetic particle-based immunoassays for triazines have been developed to offer a wide range of specificities and sensitivities to both parent compounds and metabolites.

The methanol content increased linearly to 100% within 21 minutes. The methanol content remained at 100% until 23 minutes, then the gradient returned to initial conditions in 6 minutes. 2 nm from 215 to 300 nm. 5 minutes between successive injections. A chromatographic trace is shown in Figure 1. The wavelength selected for quantification was 216 nm for all compounds. At this wavelength, the best compromise was obtained in the signal-to-noise ratio for all analytes. This allowed for spectral examination of peak purity.

Technol. 1992, 26, 2440-2447. J. S. Geological Survey, Denver, CO, 1991. L. Anal. Chem. 1993, 65, 365-370. ; Hock, B. Methods of Enzymatic Analysis, Drugs and Pesticides; Vol. : Weinheim VCH, 1986, p. 438. J. Immunoassays for Trace Chemical Analysis: Monitoring Toxic Chemicals in Humans, Food and Environment; ACS Symposium Series, Vol.

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