Determination of Pb(II) by Photoacoustic Spectroscopy with a Solid-Phase Spectrophotometry Approach Using 2-(2′-Thiazolylazo)-p-cresol (TAC) Coated on Resin

R. Saavedra, R. Gómez and C. Candia
INTERNATIONAL JOURNAL OF THERMOPHYSICS 33 (2012)

ABSTRACT

In this study, preliminary results obtained for Pb(II) determination by
photoacoustic spectroscopy are introduced. It is based on an amplitude measure-
ment of a photoacoustic signal obtained from a Pb(II) complex formation with
2-(2 -thiazolylazo)-p-cresol (TAC) retained in an anionic resin such as Dowex 1X8.
The Pb(II)–TAC complex spectrum reveals an absorption band, which is assigned to a
Pb(II)–TAC complex retained on the resin. The peak height of this band is proportional
to the Pb(II) concentration, and it can be used to obtain quantitative information of the
metal content.

DOI: http://dx.doi.org/10.1007/s10765-012-1356-0



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