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Flow-injection analysis and liquid chromatography: surface-enhanced Raman spectrometry detection by using a windowless flow cell

✍ Scribed by L.M. Cabalín; A. Rupérez; J.J. Laserna

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
672 KB
Volume
318
Category
Article
ISSN
0003-2670

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✦ Synopsis

A windowless flow cell for detection by surface-enhanced Raman spectrometry (SERS) in two flow systems, flow-injection analysis and liquid ckomatography (LC), has been developed. Several experimental parameters including flow-rates of silver colloid suspension and mobile phase, photon-counting integration time and bandpass of the spectrometer have been examined. The effects of those parameters on the SERS intensities, and the limit of detection values, of five drugs (amiloride, amiphenazole, 2_mercaptopyridine, pemoline and triamterene) under flowing conditions were evaluated. The maximum SERS signal was found for flow-rates of 0.075 ml min-' and 1.5 ml min-' for the mobile phase and silver hydrosol, respectively.

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