Study Of A Formulated Pesticide By Photoacoustic Infrared Spectroscopy

S. R. Lowry; D. G. Mead; D. W. Vidrine

doi:10.1117/12.932139

29 October 1981 Study Of A Formulated Pesticide By Photoacoustic Infrared Spectroscopy

S. R. Lowry, D. G. Mead, D. W. Vidrine

Proceedings Volume 0289, 1981 Intl Conf on Fourier Transform Infrared Spectroscopy; (1981) https://doi.org/10.1117/12.932139
Event: 1981 International Conference on Fourier Transform Infrared Spectroscopy, 1981, Columbia, United States

Abstract

Photoacoustic infrared spectroscopy has been used to study the interactions of a carbamate insecticide with a clay carrier. The ability of photoacoustic infrared spectroscopy to measure infrared spectra from opaque samples non-destructively, is particularly valuable in this study where weak bonds might be destroyed by sample grinding. The results of this study show that the strong N-H stretching modes, which appear at approximately 3300 cm^-1 in in the pure insecticide, are missing in the subtraction of the N-H group spectrum. This suggests that the hydrogen attached to the nitrogen of the carbamate is forming a reasonably strong bond with the hydrated silicate structure of the clay carrier. This interaction may effect the release rate of the pesticide upon application.

Citation Download Citation

S. R. Lowry, D. G. Mead, and D. W. Vidrine "Study Of A Formulated Pesticide By Photoacoustic Infrared Spectroscopy", Proc. SPIE 0289, 1981 Intl Conf on Fourier Transform Infrared Spectroscopy, (29 October 1981); https://doi.org/10.1117/12.932139

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