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Updated: Jul 2, 2026

Measurement and Analysis of Atomic Hydrogen and Diatomic Molecular AlO, C2, CN, and TiO Spectra Following Laser-induced Optical Breakdown
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[Experimental study on glucose solution by laser-induced breakdown spectroscopy].

Wen-Yan Zhang1, Zhao-Xiang Lin, Shu-Yan Song

  • 1College of Electrics and Information Engineering, South-Central University for Nationalities, Wuhan 430074, China.

Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu
|August 30, 2008
PubMed
Summary
This summary is machine-generated.

Laser-induced breakdown spectroscopy detects glucose by analyzing its unique spectral signature. Higher glucose concentrations yield stronger signals, with intensity correlating logarithmically to concentration.

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Area of Science:

  • Analytical Chemistry
  • Spectroscopy
  • Plasma Physics

Context:

  • Laser-induced breakdown spectroscopy (LIBS) is a powerful analytical technique.
  • Accurate detection of glucose in solution is crucial for various applications.
  • Previous methods for glucose detection have limitations in speed or sensitivity.

Purpose:

  • To develop a novel method for glucose detection using laser-induced plasma spectroscopy.
  • To characterize the spectral properties of glucose plasma.
  • To establish a correlation between spectral intensity and glucose concentration.

Summary:

  • A 1.064 micrometer Nd:YAG laser was used to generate plasma from glucose solutions.
  • Characteristic spectral lines of glucose were identified by comparing spectra of glucose solutions and pure water.
  • Spectral intensity showed a logarithmic increase with glucose concentration (3-9%) and peaked at a specific delay time, with a decay time of approximately 300 ns, independent of concentration.

Impact:

  • This study presents a sensitive and rapid method for glucose quantification.
  • The findings contribute to the advancement of LIBS applications in chemical analysis.
  • The developed technique has potential for real-time glucose monitoring.