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Proceedings Paper

Surface-enhanced in-situ Raman-sensor applied in the arctic area for analyses of water and sediment
Author(s): Anna Kolomijeca; Yong-Hyok Kwon; Heinz-Detlef Kronfeldt
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Paper Abstract

Investigations on the seafloor in the arctic area are of great scientific interest as well as of progressive economic importance. Therefore, measurements in the water column and of sediments were carried out by applying different analytical methods. In JCR 253 arctic cruise a microsystem diode laser with reflection Bragg grating emitting at 671 nm was introduced and integrated into an optode housing which was laboratory pressure tested up to 200 bar. The connection to the mobile spectrometer is realized through an optical fiber. All performed measurements were carried out on the James-Clark-Ross research vessel during a three week experiment in August 2011. Conventional Raman spectra and SERS spectra of arctic surface water and sediment acquired from locations around 78° N and 9° E will be presented. Selected SERS substrates developed for SERS measurements in sea-water were tested for their capability to detect different substances in the water down to very small (pmol/l) concentrations. Additionally, the applicability of shifted excitation Raman difference spectroscopy (SERDS) and a combination of SERS with SERDS for analytical applications during sea-trials for in-situ analyses of sea-water and sediments will be discussed.

Paper Details

Date Published: 9 May 2012
PDF: 9 pages
Proc. SPIE 8366, Advanced Environmental, Chemical, and Biological Sensing Technologies IX, 83660A (9 May 2012); doi: 10.1117/12.918250
Show Author Affiliations
Anna Kolomijeca, Technische Univ. Berlin (Germany)
Yong-Hyok Kwon, Technische Univ. Berlin (Germany)
Institute of Optics and Atomic Physics (Germany)
Heinz-Detlef Kronfeldt, Technische Univ. Berlin (Germany)

Published in SPIE Proceedings Vol. 8366:
Advanced Environmental, Chemical, and Biological Sensing Technologies IX
Tuan Vo-Dinh; Robert A. Lieberman; Günter Gauglitz, Editor(s)

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