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Use of bentonite and humic acid as modifying agents in alginate-based controlled-release formulations of imidacloprid

Tipo de material: TextoTextoSeries ; Pesticide Science, 55(5), p.546-552, 1999Trabajos contenidos:
  • González-Pradas, E
  • Fernández-Pérez, M
  • Villafranca-Sánchez, M
Tema(s): Recursos en línea: Resumen: In order to prepare a formulation to be used for controlled release, imidacloprid was incorporated into alginate granules by using calcium chloride as gellant. The formulation prepared (alginate-imidacloprid-water)was modified by the addition of different sorbents. The effects on release rate of the addition of natural bentonite desiccated at 105 °C, untreated, acid-treated with sulfuric acid solutions over a concentration range between 0.5 mol dm-3 and 2.5 mol dm-3, and a commercial humic acid, were studied by immersion of the granules in water under static conditions. The time taken for 50
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Documentos solicitados Documentos solicitados CICY Documento préstamo interbibliotecario Ref1 B-6652 (Browse shelf(Opens below)) Available

In order to prepare a formulation to be used for controlled release, imidacloprid was incorporated into alginate granules by using calcium chloride as gellant. The formulation prepared (alginate-imidacloprid-water)was modified by the addition of different sorbents. The effects on release rate of the addition of natural bentonite desiccated at 105 °C, untreated, acid-treated with sulfuric acid solutions over a concentration range between 0.5 mol dm-3 and 2.5 mol dm-3, and a commercial humic acid, were studied by immersion of the granules in water under static conditions. The time taken for 50

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