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Related Concept Videos

Raman Spectroscopy: Overview01:20

Raman Spectroscopy: Overview

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The underlying principle of Raman spectroscopy is based on the interaction between light and matter, specifically molecules' inelastic scattering of photons. When a monochromatic beam of light, typically from a laser source, interacts with a sample, most scattered light has the same frequency as the incident light. This is known as Rayleigh scattering.
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A conventional Raman spectrophotometer includes a laser source, a sample holding system, a wavelength selector, and a detector.
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Updated: Apr 15, 2026

Surface Enhanced Raman Spectroscopy Detection of Biomolecules Using EBL Fabricated Nanostructured Substrates
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Asphaltene detection using surface enhanced Raman scattering (SERS).

O O Alabi1, A N F Edilbi, C Brolly

  • 1Geosciences, University of Aberdeen, Aberdeen, AB24 3UE, Scotland. s.a.bowden@abdn.ac.uk.

Chemical Communications (Cambridge, England)
|March 27, 2015
PubMed
Summary
This summary is machine-generated.

Surface enhanced Raman spectroscopy detects sub parts per million of asphaltene and petroleum using a gold substrate. This sensitive method is transformative for petroleum analysis, environmental protection, and material science.

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Area of Science:

  • Analytical Chemistry
  • Materials Science
  • Spectroscopy

Background:

  • Petroleum analysis requires sensitive detection methods for components like asphaltenes.
  • Current methods may lack the sensitivity or simplicity for rapid field analysis.

Purpose of the Study:

  • To develop a highly sensitive and simple method for detecting asphaltene and petroleum.
  • To explore the potential of surface-enhanced Raman spectroscopy for various applications.

Main Methods:

  • Utilized surface-enhanced Raman spectroscopy (SERS).
  • Employed a gold substrate for enhanced signal detection.
  • Used 514 nm laser excitation for spectral analysis.

Main Results:

  • Achieved detection of sub parts per million quantities of asphaltene.
  • Demonstrated the capability to detect petroleum presence.
  • The SERS method showed high sensitivity and a simple format.

Conclusions:

  • SERS on a gold substrate offers a transformative approach for detecting trace amounts of asphaltene and petroleum.
  • The technique's sensitivity and simplicity support applications in sample triage, flow assurance, and environmental monitoring.
  • This method is valuable for analyzing unique or one-of-a-kind materials where sample quantity is limited.