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M. A. Proskurnin, A. P. Smirnova, N. Yu. Ragozina

Determination of uncoloured organic compounds in aqueous solutions by thermal lensing

Abstract

Thermal-lens spectrometry was used for determining trace organic solvents and nonionic surfactants affecting thermooptical properties of water. In the presence of inert colourants (for increasing the sensitivity of thermal-lens measurements), the limits of detection of ethanol and DMSO are 0.3% (6´10–2 mol/L) and 0.04% (3´10–3 mol/L), respectively. The limits of detection of nonionic surfactants Tween-80, Triton X-100 ΠΈ Brij-35 are n´10–3 mol/L.
Moscow University Chemistry Bulletin.
2003, Vol. 44, No. 6, P. 404
   

Copyright (C) Chemistry Dept., Moscow State University, 2002
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