Issue
J. Phys. Colloques
Volume 44, Number C6, Octobre 1983
Spectroscopie Photoacoustique et Photothermique / Photoacoustic and Photothermal Spectroscopy
Page(s) C6-171 - C6-175
DOI https://doi.org/10.1051/jphyscol:1983626
Spectroscopie Photoacoustique et Photothermique / Photoacoustic and Photothermal Spectroscopy

J. Phys. Colloques 44 (1983) C6-171-C6-175

DOI: 10.1051/jphyscol:1983626

DETERMINATION OF PHOTO ACOUSTIC SPECTRA OF DYES-I CONGO RED

R.N. Mathur et G.C. Pandey

University Service and Instrumentation Centre, Jawaharlal Nehru University, New Delhi 110067, India


Résumé
On présente les spectres photo acoustiques du Rouge Congo qui est un matériau opaque. On compare les spectres PA du solide, les spectres de transmission d'une solution diluée, le spectre PA du colorant déposé sur un papier filtre.


Abstract
Photo acoustic (PA) spectra of one of the optically opaque material dye Congo-Red has been reported. The PA spectra of solid dye have been compared with the transmission spectrum of the diluate aquous solution of the dye as well as the PA spectrum of the air dried aquous solution of the dye on a filter paper.