Determination of carbaryl and carbofuran in fruits and tap water by B-cyclodextrin enhanced fluorimetric method.

N. L. PACIONI; A. V. VEGLIA*

Elsevier

Lugar: Ireland; Año: 2003 vol. 488 p. 193 - 193

p style="margin: 0cm 0cm 0pt; text-align: justify;" class="MsoNormal">The effect of b-cyclodextrin (CD) and hydroxypropyl-b-cyclodextrin (HPCD) in water solutions on the UV-Vis and fluorescence spectra of carbaryl (1-naphthyl-N-methylcarbamate, CY) and carbofuran (2,2-dimethyl,2-3-dihydro-7-benzofuranyl-N-methylcarbamate, CF) was investigated. Host?guest interactions were observed by UV-Vis and spectrofluorimetry and the association constants for the 1:1 complexes (KA, dm3/mol)   with CD and HPCD were determined. The values obtained were 190 ± 10 and 123 ± 7 dm3/mol  for CF and 350 ± 50 and 644 ± 53  dm3/mol for CY, respectively. The values of the fluorescence quantum yield ratios (