Determination of Perchlorate in Tobacco Plants and Tobacco Products
| Autor: | John J. Evans, Quincy Teng, A. Wayne Garrison, Jimmy K. Avants, N. Lee Wolfe, J. Jackson Ellington |
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| Rok vydání: | 2001 |
| Předmět: |
Magnetic Resonance Spectroscopy
Perchlorates Chemistry fungi Electrophoresis Capillary food and beverages General Chemistry Chromatography Ion Exchange Plant Roots Sodium Compounds Plant Leaves Kinetics Perchlorate chemistry.chemical_compound Nitrogen fertilizer Environmental chemistry Tobacco Soil Pollutants Environmental Chemistry Fertilizers Nuclear chemistry |
| Zdroj: | Environmental Science & Technology. 35:3213-3218 |
| ISSN: | 1520-5851 0013-936X |
| Popis: | Previous field and laboratory studies with vascular plants have shown that perchlorate is transported from perchlorate fortified soils and is accumulated in the plant tissues and organs. This paper contains results of preliminary investigations on the occurrence of perchlorate in tobacco plants grown in soils amended with a fertilizer whose nitrogen content is derived from naturally occurring sodium nitrate (Chile saltpeter). Ion chromatography (IC) and capillary electrophoresis (CE) were used for quantitative analysis, while nuclear magnetic resonance (NMR) spectroscopy was used for qualitative analysis of perchlorate. Results show that perchlorate is accumulated by tobacco plants into the leaves from soils amended with fertilizers that contain perchlorate. Also, perchlorate can persist over an extended period of time and under a variety of industrial processes as shown by its presence in off-the-shelf tobacco products including cigarettes, cigars, and pouch and plug chewing tobaccos in concentrations ranging from nd to 60.4 +/- 0.8 mg/kg on a wet weight basis. |
| Databáze: | OpenAIRE |
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