Infrared and raman spectroscopy in forensic science ebook. Infrared and raman spectroscopy of automotive paints for. Identity raman reader detection limits for common compounds. Jehlicka institute of geochemistry, mineralogy and mineral resources, faculty of science, charles university in prague, prague, czech republic. Infrared spectroscopy materials science, engineering and technology. Spectral analysis of blood stains at the crime scene edelman, gj.
Pdf recent applications of infrared and raman spectroscopy in. Raman spectroscopy applied to forensic investigation at. Infrared spectroscopy the truth about forensic science. Thanks to the highly specific nature of infrared and raman chemical analysis, the systems are able to identify unknown compound. The potential applications of raman spectroscopy to forensic analysis are plentiful, with the technique being increasingly used to ascertain details of a range of sample types. Analyzing automotive paints with extended range atr. Infrared and raman spectroscopies of clay minerals, volume 8. Science organic chemistry spectroscopy infrared spectroscopy. Development of advanced raman spectroscopy methods. Summary this paper provides an introduction to raman spectroscopy and shows how it has and will play a role in the analysis of forensic. A forensic scientists view on morphologically directed raman. Review of surface enhanced raman scattering applications in forensic science.
Research and development on instrumental analysis for forensic science. For example, there is gas chromatography and breath testuing devices infrared spectroscopy or electrochemical in dui. Ftir microspectroscopy in forensic and crime lab analysis. Infrared and raman spectroscopy in forensic science by. This study targets the development of a nondestructive, confirmatory method for body fluid identification based on raman spectroscopy coupled with advanced statistical.
The approach allows for the preservation of material for future dna analysis. There have been several significant advances in raman spectroscopy instrumentation during the past few decades, and this method is now a fully mature analytical technique on par with its counterpart, infrared spectroscopy. Spectroscopy is the study of the interaction of electromagnetic radiation with matter. Raman spectroscopy download ebook pdf, epub, tuebl, mobi.
The question is difficult to answer unequivocally because the answer is. In this work, impounded vehicles with different colors white, red and silver containing a similar clearcoat composition acrylic urethane styrene were analyzed by infrared and raman spectroscopy. Principles and spectral interpretation explains the background, core principles and tests the readers understanding of the important techniques of infrared and raman spectroscopy. Infrared and raman spectroscopy in forensic science 1. Renishaws invia raman spectrometer has numerous applications within forensic science, including the identification of illicit drugs, gunshot residue, accelerants in arson cases, inks used in counterfeiting, or explosives. Design considerations for a portable raman probe spectrometer. Different modes of raman spectroscopy continue to emerge as new screening tools for forensic and homeland security applications. Vibrational spectroscopy ir, raman vibrational spectroscopy vibrational spectroscopy is an energy sensitive method. Ir imaging is an important technique used in forensic science, especially crime scene investigations. Infrared and raman spectroscopies of clay minerals, volume 8 in the developments in clay science series, is an uptodate overview of spectroscopic techniques used in the study of clay minerals. Raman microspectroscopy is commonly used to identify even microscopic amounts of drugs even when mixed with other materials. Forensic scientists have become increasingly interested in raman spectroscopy, according to patrick buzzini, assistant professor in the forensic and investigative science program at west virginia university in morgantown. The application of chemometrics, however, is vital in many. This book will provide a survey of the major areas in which information derived from vibrational spectroscopy investigations and studies have contributed to the benefit of forensic science, either in a.
Lee college of criminal justice and forensic sciences, university of new haven talks about how morphologically directed raman spectroscopy has advanced her. When these devices are deployed in the field or in the laboratory, they are not properly deployed. Raman spectroscopy has been shown to be a viable method for explosives detection. Bartick department of forensic sciences, the george washington university, washington, district of columbia 20052 j. Currently most forensic raman systems are either large, powerful instruments for laboratory experiments or handheld instruments for in situ point detection. Usage of infraredbased technologies in forensic sciences. Infrared ir and raman spectroscopy ir and raman spectroscopy measure the energy difference of vibrational energy levels in molecules, they are energy sensitive methods. Infrared and raman spectroscopy in forensic science chalmers, john m. This book will provide a survey of the major areas in which information derived from vibrational spectroscopy investigations and studies have contributed to the benefit of forensic science, either in a complementary or a unique way. Relevant application examples, highlighting how infrared, raman and thz spectroscopy can. Pen inks are viscous liquids made of a mixture of several dyes and pigments that provide color, organic solvents that serve as a vehicle, resins that sustain the right viscosity and adhering properties, and also other agents like antioxidants, preservatives and trace elements. This is highlighted by examples taken from real case studies and analyses of forensic relevance, which provide a focus for current and future applications and.
An introduction to the principles of forensic science and how raman and infrared spectroscopy can be applied. Discriminant analysis of raman spectra for body fluid. Both infrared ir and raman spectroscopy take advantage of the vibration of. As a result, the reliability of spectral forensic analysis decreases depending on the degradation level of the sample. Vibrational spectroscopy vibrational spectroscopy ir, raman. Bartick counterterrorism and forensic science research unit fbi academy, quantico, va, u. Raman spectroscopy is used in forensic science to determine the molecular chemistry of materials because it is rapid, reliable, allows analysis without contacting the sample, is nondestructive.
Infrared spectroscopy an overview sciencedirect topics. In forensic science there are many analytical instruments that are used to identify and quantify. The use of these techniques in forensic science is described in detail in the section under usage of irbased technologies in forensic sciences. A particularly beneficial application of raman spectroscopy in forensic science. Raman spectroscopy is a very sensitive technique that is often used in forensic laboratories, mostly to analyze textile fibers and paints. Law forensic sciences technology application infrared spectroscopy innovations usage lasers raman spectroscopy. Forensic analysis of hair by infrared spectroscopy kathryn s kalasinsky.
The electromagnetic radiation may be anywhere from very high energy gamma rays to low. Introduction to infrared spectroscopy video khan academy. Infrared and raman spectroscopy in forensic science this book will provide a survey of the major areas in which information derived from vibrational spectroscopy investigations and studies have contributed to the benefit of forensic science. Raman spectroscopy of ink on paper 339 1998 1929 1859 1788 1717 1645 1572 1499 1425 50 1274 1198 1120 1042 963 884 803 721 639 556 472 387 301 214 126 raman shift wavenumbers blue ball point 2 blue ball point 1 fig. Summary this paper provides an introduction to raman spectroscopy and shows how it has and will play a role in the analysis of forensic evidence. The latter technique experienced a quantum leap in use in the forensic science laboratory following the introduction of inexpensive ft ir spectrometers in the 1980s, but forensic scientists have been slower to embrace raman spectroscopy. Oct 16, 2009 near infrared nir raman spectroscopy was used to measure spectra of dried human blood samples from multiple donors. Among these novel spectroscopic techniques is portable raman spectroscopy. Award number 2010dnbxk201 page 2 of 95 testing black tar heroin directly is not feasible with current raman. Characterisation and classification of automotive clear coats with raman spectroscopy and chemometrics for forensic purposes mark maric,a,b,d wilhelm van bronswijk,b kari pittsc and simon.
Bartick fbi academy, quantico, va, usa this is publication number 0106 of the laboratory division of the federal bureau of. Read download handbook of spectroscopy pdf pdf download. Analysis of forensic evidence using raman and infrared microscopy. These techniques are used by chemists, environmental scientists, forensic scientists etc to identify unknown chemicals. Applications of fourier transform raman spectroscopy in. Both infrared ir and raman spectroscopy take advantage of the vibration of molecules to permit chemical analysis. What is raman scattering and what is its use in forensic science. Feb 24, 2016 a search of the current scientific literature yields a limited number of studies that describe the use of fourier transform infrared ftir spectroscopic imaging for the analysis of forensic casework, which is likely due to the fact that these instruments.
Saferstein r criminalistics an introduction to forensic science. Therefore, i wish to know which are the suppliers of raman spectrographers and video spectral comparators and scanning comparators technologies that will be useful to graphology labs. Your expert help and advice will be highly appreciated and will be referred upon in the proper section of special thanks, too. Raman spectroscopy involves the laser irradiation of a sample, the detection of the consequent inelastic scattered photons, the analysis of the change in frequency of the scattered light and the. The mature portability, selectivity and ease of operation of the current raman spectroscopic devices make this mode of spectroscopy. Forensic science applications for raman spectroscopy. We have chosen to examine the performance of certain benchtop raman probe systems with the goal of developing an inexpensive, portable system that. Advantages of raman spectroscopy over mid ir or near ir spectroscopy. Two major questions addressed in this paper involve the influence of sample heterogeneity and potential raman spectral variations that could arise between different donors of blood. This is highlighted by examples taken from real case studies and analyses of forensic. Read online handbook of spectroscopy and download handbook of spectroscopy book full in pdf formats. Raman spectroscopy can identify many types of explosives from even the smallest.
Infrared and raman spectroscopy in forensic science john m. Advanced statistical analysis of spectra obtained from multiple spots on dry samples showed that. Request pdf infrared and raman spectroscopy in forensic science introductionadulterationprovenancefood spoilagemicroorganism identificationconclusion. It is based on periodic changes of dipolmoments ir or polarizabilities raman caused by molecular vibrations of molecules or groups of atoms and the combined discrete energy transitions and changes of frequencies during. It was found that dry traces of body fluids are intrinsically heterogeneous meaning that raman spectra measured from different spots varied significantly. They are widely used to provide information on chemical structures and physical forms, to. Infrared and raman spectroscopy in forensic science kindle edition by chalmers, john m. Infrared spectroscopy was first applied to forensic science around 1950 but the advent of the fourier transform calculation method in 1966 made it a much quicker process to use. This book fully integrates the use of both ir and raman spectroscopy as spectral interpretation tools, enabling the user to utilize the. Infrared spectroscopy is the other vibrational technique besides raman spectroscopy. This book will provide a survey of the major areas in which information derived from vibrational spectroscopy investigations and studies have contributed to the benefit of forensic science.
Counterfeit, ft ir micro spectroscopy, hair, ink, paint, tablet. Raman spectroscopy for forensic analysis of household and automotive paints steven e j bell, samantha. Infrared and raman spectroscopy 1st edition elsevier. Raman spectroscopy is used to identify many types of forensic evidence such as drugs, explosives and trace evidence.
Forensic analysis of single fibers by raman spectroscopy. Applications of vibrational spectroscopy in criminal forensic analysis edward g. The use of these techniques in forensic science is described in detail in the section under usage of ir based technologies in forensic. Read infrared and raman spectroscopy in forensic science by available from rakuten kobo. Forensic laboratories routinely encounter ink evidence originated from pens during their investigations. A particularly beneficial application of raman spectroscopy in forensic science is in the analysis of ink samples on questioned documents braz et al, 20. The evidence materials studied were fragments of broken plastic automobile lenses, paint coatings, paper and others. Click download or read online button to get raman spectroscopy book now. Development of advanced raman spectroscopy methods and. The methods include infrared spectroscopy, covering nearir nir, midir mir, farir fir and ir emission spectroscopy ies, as well as ft raman. A number of possible new applications for the use of fourier transform raman spectroscopy ft raman in forensic science have been investigated. Principles, comparison to infrared spectroscopy, and instrumentation. Raman spectroscopy for forensic analysis of inks in.
Automotive paint, far infrared, forensic science, infrared spectroscopy, inorganics, paint analysis infrared ir spectroscopy is used extensively to characterize the chemical composition of trace. Forensic and homeland security applications of modern. Applications of vibrational spectroscopy in criminal. Certainly, further volumes covering other topics of practical vibrational spectroscopy will follow in future. Fundamentals of infrared spectroscopy midac corporation 1 tn100. Ir and raman spectroscopy vibrational spectroscopy. Characterisation and classification of automotive clear. Raman spectroscopy did not enjoy the same overnight success as did ft ir spectroscopy. Infrared and raman spectroscopy, principles and spectral interpretation, second edition provides a solid introduction to vibrational spectroscopy with an emphasis on developing critical interpretation skills. Pdf infrared and raman spectroscopy in forensic science.
This unique reference book provides an introduction to the principles of forensic science and how raman and infrared spectroscopy can be applied relevant application examples, highlighting how infrared, raman and thz spectroscopy can be applied to these fields coverage of key areas of instrumentation, sampling, crime scenes, drugs of abuse and. Infrared and raman spectroscopy in forensic science request pdf. Application of raman spectroscopy in forensic investigation of questioned documents involving stamp inks. Raman spectroscopy provides superior results for pigments, paint chips and other inorganic samples. Infrared and raman spectroscopy in forensic science electronic resource responsibility edited by john m. You would be using the micro raman spectroscopy method. Detection and identification of blood, semen and saliva stains, the most common body fluids encountered at a crime scene, are very important aspects of forensic science today. Raman spectroscopy preserves material the process is also nondestructive. Use features like bookmarks, note taking and highlighting while reading infrared and raman spectroscopy in forensic science. Raman and ir spectroscopy are regarded as complementary techniques, this is due to the vibrations that are usually weak in ir spectra being strong in raman. Determining gender by raman spectroscopy of a bloodstain. They are based on interactions of electromagnetic radiation and material but the main differences between these two spectroscopic techniques are the physical effects. Applications of raman spectroscopy in forensic science. Application of raman spectroscopy for an easytouse, on.
Identity raman reader detection limits for common compounds introduction a common question regarding instrument performance is the sensitivity or detection limits for trace components in mixtures. Infrared and raman spectroscopy in forensic science 2012. Ir also has a forensic purpose and ir spectroscopy is used to analyze. Transformation and detrending of nearinfrared diffuse reflectance. Jehlicka institute of geochemistry, mineralogy and mineral resources, faculty of science, charles university in prague. Detection limits are dependent on the raman scattering cross. Applications of vibrational spectroscopy in criminal forensic. Raman spectra of blue ball point inks 1 blue and 2 magenta, labram in finity, exl 633 nm, serrs 1. While ir spectroscopy relies on the absorption of light, raman spectroscopy involves the detection of scattered light at different frequencies. Infrared ir spectroscopy is currently widely used in the food industry for both qualitative and quantitative analysis of ingredients and finished foods. This book will provide a survey of the major areas in which information derived from vibrational spectroscopy.
Unlike many tests currently in use by crime investigators for species identification, raman spectroscopy doesnt destroy the samples used. Infrared microanalysis is ideal for drug and trace identification. After paint samples of a hit and run accident, between two vehicles, are received at a crime lab, how long does it take to analyze the samples. Infrared spectroscopy can be used to identify forged or altered documents by shining a beam of infrared light on the documents ink. Infrared and raman spectroscopy in forensic science wiley. The audience for this interactive course should mainly include graduate students and technicians who are newcomers to ir and raman spectroscopy. In forensic science, paint analysis can be used in a multitude of ways to help resolve a crime, and the evidence can come in many forms, including single layer or multilayered fragments, chips, smears, and small droplets. In a study published in the june 2002 issue of the journal of. Pittcon presenter, professor igor lednev, university of albany, discusses the different techniques used in the detection of bodily fluids in forensic science as well as the benefits of raman. Application of infrared and raman spectroscopy in paint trace examination. Raman spectroscopy of blood samples for forensic applications. Purchase infrared and raman spectroscopy 1st edition. Dry traces of body fluids were tested using raman microscope equipped with a computercontrolled stage for rapid mapping.
Infrared and raman spectroscopy in forensic science john. Forensic analysis of single fibers by raman spectroscopy jason v. Infrared and raman spectroscopy in forensic science. Presumptive field testing using portable raman spectroscopy.