A solid phase extraction procedure for determination of triazine herbicides and polar metabolites in natural waters
- Waters Corp., Milford, MA (United States)
Atrazine and related triazine herbicides are used in great quantities throughout the world for pre-emergence weed control. In the central United States, for example, millions of kilograms of triazines are applied each year. In areas of heavy usage, surface water supplies are often affected by runoff of these substances and their transformation products. Therefore, a number of these compounds are routinely monitored in drinking water in the United States, particularly in agricultural areas such as the Mississippi river valley. There is also significant interest regarding the fate and transport of the triazine herbicides in the natural environment. In Europe, where groundwater is utilized for a high proportion of drinking water supplies, the EC has established more stringent limits than has the US EPA. Currently, the US limit is 3 {mu}g/L for atrazine; the European limit is 0.1 {mu}g/L for atrazine or any individual regulated pesticide, and 0.5 {mu}g/L for the sum of all pesticides. Because groundwater levels in agricultural areas were consistently above this limit, Germany banned the use of Atrazine in 1991, and has recommended banning the use of this herbicide throughout the European Community (EC). Clearly, a rugged method for determination of the triazine herbicides is desirable with detection limits in the part per trillion range. Because direct determination at these levels is not usually possible, sample enrichment techniques, such as solid phase extraction (SPE), must be employed. In this study, Porapak RDX Sep-Pak{reg_sign} cartridges were used for trace enrichment of triazines and metabolites.
- OSTI ID:
- 387280
- Report Number(s):
- CONF-951108-; TRN: 96:003589-0005
- Resource Relation:
- Conference: Water quality technology conference, New Orleans, LA (United States), 12-16 Nov 1995; Other Information: PBD: 1996; Related Information: Is Part Of Proceedings: 1995 water quality technology conference. Part I - Sunday seminars through Session 3E includes poster presentations. Part II - Session 4A through ST7; PB: 2562 p.
- Country of Publication:
- United States
- Language:
- English
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