Infrared and Raman spectroscopy of automotive paints for forensic identification of natural weathering

2018 ◽  
Vol 10 (10) ◽  
pp. 1203-1212 ◽  
Author(s):  
Andrey Giovanni Gomes de Oliveira ◽  
Ewelina Wiercigroch ◽  
Juliano de Andrade Gomes ◽  
Kamilla Malek
Keyword(s):  
Raman Spectroscopy ◽  
Vibrational Spectroscopy ◽  
Forensic Identification ◽  
Natural Weathering ◽  
Infrared And Raman Spectroscopy ◽  
Full Analysis

A rapid and full analysis of automotive paints affected by natural weathering is proposed by means of vibrational spectroscopy.

scholarly journals Biomedical Vibrational Spectroscopy in the Era of Artificial Intelligence

Molecules ◽  
2021 ◽  
Vol 26 (5) ◽  
pp. 1439
Author(s):  
Henry Horst Mantsch
Keyword(s):  
Artificial Intelligence ◽  
Raman Spectroscopy ◽  
Vibrational Spectroscopy ◽  
Biomedical Applications ◽  
Data Sets ◽  
Special Issue ◽  
New Developments ◽  
The Past ◽  
Infrared And Raman Spectroscopy ◽  
Meaningful Relationships

Biomedical vibrational spectroscopy has come of age. The past twenty years have brought many advancements and new developments and now its practitioners face a new challenge: artificial intelligence. Artificial intelligence has the capability to detect meaningful relationships in data sets such as those found in an infrared or Raman spectrum. The present narrative assesses the degree to which biomedical vibrational spectroscopy has already embraced artificial intelligence and what can be expected going forward. This article belongs to the Special Issue Biomedical Applications of Infrared and Raman Spectroscopy.

Forensic investigation of arson residue by infrared and Raman spectroscopy: From conventional to non-destructive techniques

2020 ◽  
Vol 60 (3) ◽  
pp. 206-215 ◽  
Author(s):  
Vijay Kumar Yadav ◽  
Kriti Nigam ◽  
Ankit Srivastava
Keyword(s):  
Raman Spectroscopy ◽  
Vibrational Spectroscopy ◽  
Analytical Techniques ◽  
Chemical Degradation ◽  
Spectroscopic Techniques ◽  
Original Material ◽  
Infrared And Raman Spectroscopy ◽  
Ignitable Liquids ◽  
Fire Debris ◽  
Non Destructive

Arson can result in highly challenging and complicated crime scenes. Much physical evidence undergoes chemical degradation because of the destructive nature of fire, while accelerants either completely burn or evaporate, and may be present in traces within any of the decomposed materials. To identify the original material and the accelerant involved, it is necessary to use advanced analytical techniques. Gas chromatography, with different detectors, is one of the most frequently used instruments in fire debris and accelerant analysis. Among other instruments, capillary electrophoresis and laser-induced thermal desorption Fourier transform mass spectrometry are two major contributors. Vibrational spectroscopy, including infrared absorption and Raman scattering, is one of the major non-destructive tools for the analysis of evidence because of its advantages over other spectroscopic techniques. Most studies involving vibrational spectroscopy (i.e. infrared and Raman spectroscopy) have focused on the identification of commonly found household materials, while very few studies have considered the identification of ignitable liquids. This article reviews studies based on an analysis of fire debris and accelerants by vibrational spectroscopic techniques and considers the limitations and future perspectives of arson investigations in forensic science.

Identification of filler substances in emeralds by infrared and Raman spectroscopy

2000 ◽  
Vol 26 (1) ◽  
pp. 501-520 ◽  
Author(s):  
L. Kiefert ◽  
H.A. Hänni ◽  
J-P. Chalain ◽  
W. Weber
Keyword(s):  
Raman Spectroscopy ◽  
Infrared And Raman Spectroscopy

scholarly journals Multivariate approach for the authentication of vanilla using infrared and Raman spectroscopy

2021 ◽  
Vol 141 ◽  
pp. 110196
Author(s):  
Ana M. Jiménez-Carvelo ◽  
Margherita Tonolini ◽  
Orla McAleer ◽  
Luis Cuadros-Rodríguez ◽  
Daniel Granato ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Multivariate Approach ◽  
Infrared And Raman Spectroscopy

scholarly journals Authentication of the Botanical and Geographical Origin and Detection of Adulteration of Olive Oil Using Gas Chromatography, Infrared and Raman Spectroscopy Techniques: A Review

Foods ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1565
Author(s):  
Eleni Kakouri ◽  
Panagiota-Kyriaki Revelou ◽  
Charalabos Kanakis ◽  
Dimitra Daferera ◽  
Christos S. Pappas ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Raman Spectroscopy ◽  
Olive Oil ◽  
Nutritional Value ◽  
Review Paper ◽  
Geographical Origin ◽  
Analytical Techniques ◽  
Volatile Fraction ◽  
Olive Oils ◽  
Infrared And Raman Spectroscopy

Olive oil is among the most popular supplements of the Mediterranean diet due to its high nutritional value. However, at the same time, because of economical purposes, it is also one of the products most subjected to adulteration. As a result, authenticity is an important issue of concern among authorities. Many analytical techniques, able to detect adulteration of olive oil, to identify its geographical and botanical origin and consequently guarantee its quality and authenticity, have been developed. This review paper discusses the use of infrared and Raman spectroscopy as candidate tools to examine the authenticity of olive oils. It also considers the volatile fraction as a marker to distinguish between different varieties and adulterated olive oils, using SPME combined with gas chromatography technique.

scholarly journals Applications of Vibrational Spectroscopy for Analysis of Connective Tissues

Molecules ◽  
2021 ◽  
Vol 26 (4) ◽  
pp. 922
Author(s):  
William Querido ◽  
Shital Kandel ◽  
Nancy Pleshko
Keyword(s):  
Raman Spectroscopy ◽  
Vibrational Spectroscopy ◽  
Near Infrared ◽  
Ex Vivo ◽  
Biological Tissues ◽  
Label Free ◽  
Connective Tissues ◽  
Bone Properties ◽  
Composition And Structure

Advances in vibrational spectroscopy have propelled new insights into the molecular composition and structure of biological tissues. In this review, we discuss common modalities and techniques of vibrational spectroscopy, and present key examples to illustrate how they have been applied to enrich the assessment of connective tissues. In particular, we focus on applications of Fourier transform infrared (FTIR), near infrared (NIR) and Raman spectroscopy to assess cartilage and bone properties. We present strengths and limitations of each approach and discuss how the combination of spectrometers with microscopes (hyperspectral imaging) and fiber optic probes have greatly advanced their biomedical applications. We show how these modalities may be used to evaluate virtually any type of sample (ex vivo, in situ or in vivo) and how “spectral fingerprints” can be interpreted to quantify outcomes related to tissue composition and quality. We highlight the unparalleled advantage of vibrational spectroscopy as a label-free and often nondestructive approach to assess properties of the extracellular matrix (ECM) associated with normal, developing, aging, pathological and treated tissues. We believe this review will assist readers not only in better understanding applications of FTIR, NIR and Raman spectroscopy, but also in implementing these approaches for their own research projects.

scholarly journals Quantification of protein glycation using vibrational spectroscopy

The Analyst ◽  
2020 ◽  
Vol 145 (10) ◽  
pp. 3686-3696
Author(s):  
Bethan S. McAvan ◽  
Aidan P. France ◽  
Bruno Bellina ◽  
Perdita E. Barran ◽  
Royston Goodacre ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Vibrational Spectroscopy ◽  
Protein Glycation ◽  
Glycated Proteins

FTIR-ATR and Raman spectroscopy can distinguish between glycated and non-glycated proteins.

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