Photochemical behavior of fenpropathrin and [lambda]-cyhalothrin in solution
The photodegradation processes of fenpropathrin and [lambda]-cyhalothrin were studied in hexane, methanol/water (1:1, v/v), and acetone in both ultraviolet light and simulated sunlight. Intermediates in the photodegradation process were identified using gas chromatography/mass spectrometry (GC/MS),...
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| Veröffentlicht in: | Environmental science and pollution research international 2014-02, Vol.21 (3), p.1993 |
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| container_title | Environmental science and pollution research international |
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| creator | Liu, P Y Li, B Liu, H D Tian, L |
| description | The photodegradation processes of fenpropathrin and [lambda]-cyhalothrin were studied in hexane, methanol/water (1:1, v/v), and acetone in both ultraviolet light and simulated sunlight. Intermediates in the photodegradation process were identified using gas chromatography/mass spectrometry (GC/MS), and the analysis of intermediates was used to speculate on possible photodegradation pathways. The photodegradation processes of fenpropathrin and [lambda]-cyhalothrin followed pseudo first-order kinetics. The photodegradation rates varied according to the solvent in decreasing order: hexane>methanol/water (1:1, v/v)>acetone. The effects of substances coexisting in the environment on the photodegradation of pyrethroids were also investigated in the research. Acetone, humic acid, and riboflavin increased photodegradation rates while l-ascorbic acid slowed the process. This study provides a theoretical basis for the removal of pyrethroid pollution from the natural environment. [PUBLICATION ABSTRACT] |
| doi_str_mv | 10.1007/s11356-013-2119-6 |
| format | Article |
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Intermediates in the photodegradation process were identified using gas chromatography/mass spectrometry (GC/MS), and the analysis of intermediates was used to speculate on possible photodegradation pathways. The photodegradation processes of fenpropathrin and [lambda]-cyhalothrin followed pseudo first-order kinetics. The photodegradation rates varied according to the solvent in decreasing order: hexane>methanol/water (1:1, v/v)>acetone. The effects of substances coexisting in the environment on the photodegradation of pyrethroids were also investigated in the research. Acetone, humic acid, and riboflavin increased photodegradation rates while l-ascorbic acid slowed the process. This study provides a theoretical basis for the removal of pyrethroid pollution from the natural environment. 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Intermediates in the photodegradation process were identified using gas chromatography/mass spectrometry (GC/MS), and the analysis of intermediates was used to speculate on possible photodegradation pathways. The photodegradation processes of fenpropathrin and [lambda]-cyhalothrin followed pseudo first-order kinetics. The photodegradation rates varied according to the solvent in decreasing order: hexane>methanol/water (1:1, v/v)>acetone. The effects of substances coexisting in the environment on the photodegradation of pyrethroids were also investigated in the research. Acetone, humic acid, and riboflavin increased photodegradation rates while l-ascorbic acid slowed the process. This study provides a theoretical basis for the removal of pyrethroid pollution from the natural environment. 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Intermediates in the photodegradation process were identified using gas chromatography/mass spectrometry (GC/MS), and the analysis of intermediates was used to speculate on possible photodegradation pathways. The photodegradation processes of fenpropathrin and [lambda]-cyhalothrin followed pseudo first-order kinetics. The photodegradation rates varied according to the solvent in decreasing order: hexane>methanol/water (1:1, v/v)>acetone. The effects of substances coexisting in the environment on the photodegradation of pyrethroids were also investigated in the research. Acetone, humic acid, and riboflavin increased photodegradation rates while l-ascorbic acid slowed the process. This study provides a theoretical basis for the removal of pyrethroid pollution from the natural environment. [PUBLICATION ABSTRACT]</abstract><cop>Heidelberg</cop><pub>Springer Nature B.V</pub><doi>10.1007/s11356-013-2119-6</doi></addata></record> |
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| language | eng |
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| source | SpringerNature Journals |
| subjects | Acetone Acids Ascorbic acid Biodegradation Bioremediation Chemical contaminants Chromatography Cyhalothrin Gas chromatography Humic acids Intermediates Light Mass spectrometry Mass spectroscopy Methanol Natural environment Organic contaminants Pesticides Photochemicals Photodegradation Pollution control Pyrethroids Riboflavin Studies Toxicity Ultraviolet radiation Vitamin B |
| title | Photochemical behavior of fenpropathrin and [lambda]-cyhalothrin in solution |
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