Raman sensitivity enhancement for aqueous absorbing sample using Teflon-AF 2400 liquid core optical fibre cell

Tian, Yanjie; Zhang, Liuyang; Zuo, Jian‐Min; Li, Zuowei; Shu-Qin, Gao; Lü, Guang-Hong

doi:10.1016/j.aca.2006.07.082

Cited by 21 publications

(14 citation statements)

References 17 publications

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“…However, for very low concentrations of absorbing species it can be useful to couple long LCW detector cells to RRS. Tian et al demonstrated that with such a setup and visible (514 nm) excitation beta-carotene can be detected in aqueous samples down to the 2.5 × 10 −10 M level [93].…”

Section: Rrs For Detection In Liquid Separation Techniquesmentioning

confidence: 99%

Achievements in resonance Raman spectroscopy

Efremov

Ariese

Gooijer

2008

Analytica Chimica Acta

251

102

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Section: Rrs For Detection In Liquid Separation Techniquesmentioning

confidence: 99%

Achievements in resonance Raman spectroscopy

Efremov

Ariese

Gooijer

2008

Analytica Chimica Acta

251

102

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“…The excitation power of 16.2 mW and exposure time (CCD integration times) of 10 s were used to collect all Raman spectra, and the resolution was 1.4 cm −1 . Some papers [9,10] have reported the technique of liquid-core optical fiber at low concentrations.…”

Section: Instruments and Measurementmentioning

confidence: 99%

Effect of solution concentration on the structured order and optical properties of short-chain polyene biomolecules

Ouyang

Sun

Zhou

et al. 2010

Sci. China Phys. Mech. Astron.

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We have measured the Raman spectra and UV-Vis absorption spectra of linear polyene biomolecules (β-carotene and lycopene) in CS 2 at low concentrations (10 −6 -10 −10 mol/L). With decreasing concentration, all the carbon-carbon vibrations form a coherent mode in ordered β-carotene and lycopene due to extended π-conjugation that gives strong electron-phonon coupling, which leads to an anomalous experimental phenomenon. We observed an extremely high Raman scattering cross section(RSCS) and the Raman activities in β-carotene and lycopene are characterized by intensive overtones and combinations. Further, the UV-Vis absorption bands become narrower. molecular structured order, Raman spectroscopy, Raman scattering cross section

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“…In this arrangement, two or more sources can be aligned along a capillary to enhance sensitivity. This type has been successfully utilized for Raman [15][16][17] and fluorescence spectrometry [18].…”

Section: Lcwmentioning

confidence: 99%

Liquid‐core waveguide in CE

Okada

2007

Electrophoresis

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Liquid-core waveguide (LCW) brings about several advantages in CE. This review discusses some aspects of fundamental and practical importance involved in this method. Sensitivity in absorption and fluorescence detection is in general improved by more than one order of magnitude over usual crossbeam detection arrangements; the improvements come from the long light path in absorption detection and low light scattering in fluorescence detection. Versatile instrumental arrangements are another advantage of LCW in CE, leading to several detection schemes, some of which provide information that is not gained by usual capillary-end crossbeam detection, e.g. whole-capillary imaging, simultaneous monitoring of multicapillary separation, and kinetic evaluation. The high potential and perspectives of LCW in CE are discussed based on the state-of-the-art developments.

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Raman sensitivity enhancement for aqueous absorbing sample using Teflon-AF 2400 liquid core optical fibre cell

Cited by 21 publications

References 17 publications

Achievements in resonance Raman spectroscopy

Achievements in resonance Raman spectroscopy

Effect of solution concentration on the structured order and optical properties of short-chain polyene biomolecules

Liquid‐core waveguide in CE

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