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Updated: Mar 29, 2026

Chemical Analysis of Water-accommodated Fractions of Crude Oil Spills Using TIMS-FT-ICR MS

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Published on: March 3, 2017

[Characterization of Time-Resolved Laser-Induced Fluorescence from Crude Oil Samples].

De-qing Liu, Xiao-ning Luan, Xiao-shuang Han

Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu

|November 26, 2015

Summary

Laser-induced time-resolved fluorescence effectively detects underwater oil spills. Fluorescence characteristics, like peak location and lifetime, correlate with crude oil density, aiding spill identification.

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Area of Science:

Environmental Science
Analytical Chemistry
Optical Physics

Context:

Underwater oil spill detection is crucial for environmental protection.
Existing methods face challenges in real-time, in-situ monitoring.
Laser-induced fluorescence (LIF) offers a potential solution for remote sensing.

Purpose:

To assess the feasibility of laser-induced time-resolved fluorescence for detecting underwater suspended oil spills.
To investigate the relationship between crude oil properties and their fluorescence characteristics.
To establish parameters for effective in-situ oil spill identification.

Summary:

Crude oil samples from Shengli Oilfield were analyzed using laser-induced time-resolved fluorescence.
Fluorescence emission durations were consistent, with gate pulse delays from 52-82 ns (10 ns FWHM).
Peak fluorescence location and lifetime varied with oil density, while similar densities showed comparable lifespans.
A red shift (17-30 nm) was observed as fluorescence attenuated, indicating differing decay rates and potential energy transfer.

Impact:

Provides crucial data for identifying suspended oil spills underwater.
Demonstrates the potential of time-resolved fluorescence for environmental monitoring applications.
Offers a foundation for developing advanced, in-situ oil spill detection technologies.