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Related Concept Videos

IR Frequency Region: Fingerprint Region01:03

IR Frequency Region: Fingerprint Region

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IR spectra are divided into two main regions: the diagnostic region and the fingerprint region. The diagnostic region of the spectrum lies above 1500 cm−1. The absorptions resulting from single-bond vibrations of the N–H, C–H, and O–H stretch at higher wavenumbers and appear on the left side of the spectrum. The stretching absorptions of the C≡C and C≡N occur between 2100–2300 cm−1. In contrast, those arising from stretching absorptions of the...
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Residual Plots01:07

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A residual plot is a statistical representation of data used to analyze correlation and regression results. It helps verify the requirements for drawing specific conclusions about correlation and regression. To obtain the residual plot, first, the residual for each data value is calculated, which is simply the vertical distance between the observed and the predicted value obtained from the regression equation.
When the residual values are plotted against the variable x, it is called a residual...
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Related Experiment Video

Updated: Mar 27, 2026

Chromatographic Fingerprinting by Template Matching for Data Collected by Comprehensive Two-Dimensional Gas Chromatography
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Recent progress on fingerprint visualization and analysis by imaging ridge residue components.

Bin Su1

  • 1Department of Chemistry, Institute of Microanalytical Systems, Zhejiang University, 310058, Hangzhou, China. subin@zju.edu.cn.

Analytical and Bioanalytical Chemistry
|January 20, 2016
PubMed
Summary

Latent fingerprint (LFP) visualization is advancing beyond identification. New methods now detect personal traits and substances like drugs or explosives, expanding forensic science applications.

Keywords:
Analytical chemistryComponent recognitionForensic scienceLatent fingerprintsVisualization

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Area of Science:

  • Forensic Science
  • Analytical Chemistry
  • Biochemistry

Background:

  • Latent fingerprints (LFPs) are crucial for personal identification in forensics.
  • Research is expanding to extract additional information from LFPs, including personal traits and chemical traces.
  • Interdisciplinary contributions from chemistry, biochemistry, and material science are driving innovation.

Purpose of the Study:

  • To review advancements in latent fingerprint (LFP) visualization techniques since 2007.
  • To explore methods for simultaneous detection of chemicals within LFP residue.
  • To highlight the role of emerging technologies in fingerprint analysis.

Main Methods:

  • Review of literature on LFP visualization reagents and methods developed post-2007.
  • Emphasis on techniques utilizing mass spectrometry, infrared spectroscopy, and nanoparticles.
  • Inclusion of immunogenic and nucleic acid-based reagents for enhanced detection.

Main Results:

  • Significant progress in developing novel reagents and methods for LFP visualization.
  • Successful integration of advanced analytical techniques for simultaneous chemical detection.
  • Demonstrated potential of nanoparticles and biomolecular reagents in fingerprint analysis.

Conclusions:

  • Fingerprint analysis extends beyond identification, offering insights into personal traits and exposure to substances.
  • Advanced visualization and detection methods are crucial for maximizing information from LFPs.
  • Interdisciplinary research continues to enhance the capabilities of forensic fingerprint analysis.