✦ LIBER ✦
Solvent Shifts and Signal Enhancement in Electronic Spectroscopy: The Influence of Hexamethyldisiloxane on the UV-Visible and Fluorescence Spectra of Selected Herbicides
✍ Scribed by J.R. Bowser; P.F. Gavin; N.D. Danielson
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 194 KB
- Volume
- 47
- Category
- Article
- ISSN
- 0026-265X
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✦ Synopsis
Hexamethyldisiloxane [ (\mathrm{HMDS},\left(\mathrm{Me}{3} \mathrm{Si}{2} \mathrm{O}\right.) ] has been found to be a useful solvent modifier for analytical studies of certain herbicides which contain aromatic rings. This solvent causes large bathochromic shifts in the (\pi \rightarrow \pi^{*}) bands relative to nonpolar solvents such as hexane. In the specific case of trifluralin this leads to a significant signal enhancement at (254 \mathrm{~nm}). Potential value for the analysis of herbicides by high performance liquid chromatography (HPLC) is discussed. 1993 Academic Press. Inc.