Open AccessDevelopment and characterization of a matrix suitable for extended release systems - release studies with the herbicides atrazine and diuron
Author(s) -
Eunice F.S. Vieira,
Antonio R. Cestari,
Renata Alves das Chagas,
Gracy Karla da Rocha Cortes
Publication year - 2014
Publication title -
química nova
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.214
H-Index - 73
eISSN - 1678-7064
pISSN - 0100-4042
DOI - 10.5935/0100-4042.20140074
Subject(s) - atrazine , characterization (materials science) , matrix (chemical analysis) , chemistry , environmental chemistry , materials science , nanotechnology , biology , pesticide , chromatography , agronomy
This study aimed to produce and characterize a novel material from fish scales and chitosan for use as a medium for the extended release of herbicides. The mechanism of release for the herbicides atrazine and diuron was influenced by diffusion and swelling according to the power law kinetic model. The atrazine release time was seven days, while that of diuron was four days. The results of this study will contribute to the development of environmental matrices for herbicide release systems