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Web URL(s): | http://onlinelibrary.wiley.com/doi/10.1002/(SICI)1526-4998(200005)56:5<425::AID-PS156>3.0.CO;2-W/full Last checked: 03/14/2014 Access conditions: Item is within a limited-access website http://onlinelibrary.wiley.com/doi/10.1002/(SICI)1526-4998(200005)56:5<425::AID-PS156>3.0.CO;2-W/pdf Last checked: 03/14/2014 Requires: PDF Reader Access conditions: Item is within a limited-access website |
Publication Type:
| Refereed |
Author(s): | PĂ©rez-MartĂnez, Jose I.;
Ginés, Juan M.;
Morillo, Esmerelda;
GonzĂĄlez-RodrĂguez, MarĂa L.;
Méndez, José R. Moyano |
Author Affiliation: | PĂ©rez-MartĂnez: Departamento de Farmacia y TecnologĂa FarmacĂ©utica, Facultad de Farmacia, Universidad de Sevilla, Sevilla, Spain; and GinĂ©s, Morillo, GonzĂĄlez-RodrĂguez, and MĂ©ndez: Instituto de Recursos Naturales y AgrobiologĂa, Consejo Superior de Investigaciones CientĂficas (CSIC), Sevilla, Spain |
Title: | Improvement of the desorption of the pesticide 2,4-D via complexation with HP-ÎČ-cyclodextrin |
Source: | Pest Management Science. Vol. 56, No. 5, May 2000, p. 425-430. |
Publishing Information: | London : for the Society of Chemical Industry by John Wiley & Sons |
# of Pages: | 6 |
Related Web URL: | http://onlinelibrary.wiley.com/doi/10.1002/(SICI)1526-4998(200005)56:5<425::AID-PS156>3.0.CO;2-W/abstract Last checked: 03/14/2014 Notes: Abstract only |
Keywords: | TIC Keywords: 2,4-D; Desorption; Adsorption; Solubility; Dissolution rate; X-ray diffraction; Water solubility; Calorimetry; HP-beta-CD
|
Abstract/Contents: | "Inclusion complex formation of 2,4-dichlorophenoxyacetic acid (2,4-D) with hydroxypropyl-ÎČ-cyclodextrin (HP-ÎČ-CD) has been proposed as a way of modifying the behaviour of the pesticide in the soil environment. The present study assesses the effect of complex formation on 2,4-D physicochemical properties (aqueous solubility, crystallinity and the dissolution rate) and its behaviour on soils. The solid complexes were prepared using different methods (spray drying, kneading and heating in a sealed container). To confirm the complex formation in the solid state differential scanning calorimetry, hot stage microscopy and x-ray diffraction techniques were employed. Complex formation in solution was studied by phase solubility. The presence of HP-ÎČ-CD increased the 2,4-D solubility nine times approximately. The apparent stability constant was determined as 98.6Mâ»Âč. The dissolution rates of the 2,4-D/HP-ÎČ-CD complexes were examined and compared with that of the pure pesticide. The results indicated that the complex may have great utility as a rapid way of dissolving the pesticide. Batch experiments were performed to study the adsorption-desorption of 2,4-D on soils and the influence of HP-ÎČ-CD over these processes. The results showed that HP-ÎČ-CD could increase the desorption of 2,4-D previously adsorbed on soils." |
Language: | English |
References: | 12 |
See Also: | Other items relating to: 2, 4 - D in Turf |
Note: | Figures Tables Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): PĂ©rez-MartĂnez, J. I., J. M. GinĂ©s, E. Morillo, M. L. GonzĂĄlez-RodrĂguez, and J. R. M. MĂ©ndez. 2000. Improvement of the desorption of the pesticide 2,4-D via complexation with HP-ÎČ-cyclodextrin. Pest Manage. Sci. 56(5):p. 425-430. |
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| Web URL(s): http://onlinelibrary.wiley.com/doi/10.1002/(SICI)1526-4998(200005)56:5<425::AID-PS156>3.0.CO;2-W/full Last checked: 03/14/2014 Access conditions: Item is within a limited-access website http://onlinelibrary.wiley.com/doi/10.1002/(SICI)1526-4998(200005)56:5<425::AID-PS156>3.0.CO;2-W/pdf Last checked: 03/14/2014 Requires: PDF Reader Access conditions: Item is within a limited-access website |
| MSU catalog number: SB 951 .A1 P45 |
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