In:
Canadian Journal of Chemistry, Canadian Science Publishing, Vol. 51, No. 4 ( 1973-02-15), p. 500-504
Abstract:
The interactions between several electron-acceptor reagents and some pesticides having donor properties were investigated in solution and on cellulose thin-layers by spectrophotometric methods. In solution, formation constants and extinction coefficients were evaluated from absorbance measurements for complexes of the pesticides carbaryl, IPC, CIPC, and swep with the electron-acceptor reagent 9-dicyanomethylene-2,4,7-trinitrofluorene, using the Benesi–Hildebrand method. Values were also calculated for the carbaryl-mellitic trianhydride complex. Extinction coefficients [Formula: see text] for the complexes were less than 1000, while formation constants were 1–41 mol −1 Reflectance spectroscopic measurements showed similar relationships between absorption maxima and intensities of the complexes and the donor properties of the pesticides to those observed in solution. A linear relationship between reflectance and the square root of concentration was found for all four pesticide–CNTNF complexes in the range from 5–50 µg.
Type of Medium:
Online Resource
ISSN:
0008-4042
,
1480-3291
Language:
English
Publisher:
Canadian Science Publishing
Publication Date:
1973
detail.hit.zdb_id:
1482256-8
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