Manual Infrared and Raman Spectroscopy in Forensic Science

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This book will provide a survey of the major areas in which information derived from vibrational spectroscopy investigations and studies have contributed to the.
Table of contents

The system includes a CCD camera with x pixel resolution and a 14x zoom lens, capable of 10 minute integration times and employs all available optical techniques - fluorescence, reflection, absorption, and transmission imaging. The Leica DMC comparison microscope is ideally equipped for forensic examination; allowing similarities and differences between two bullets or cartridges to be compared.

Kundrecensioner

Split-image and superimposed image comparisons are possible, with the microscope being equipped with a CCD camera for photography and video documentation. A key feature of the microscope is that the light is focused through the objective, dramatically increasing definition of surface features visible to the eye.

Infrared and Raman Spectroscopy in Forensic Science

The end magnification ranges from 4x to 80x, corresponding to object field sizes of 50mm to 2. A large variability of clamping and mounts for different objects are available. Leica Fibre comparison Microscope enables trace evidence comparisons in forensic science laboratories. Comparison bridge integrates tilting binocular tube that promotes ease of reach with natural body position.

Forensic suite

Automation and motorization of comparison bridge allow one-button activation of comparison methods and movement of image splitting line. The fragments of glass are crushed and placed on a glass microscope slide.


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A few drops of a special type of silicon oil is placed on the crushed glass fragments and then the slide is placed in a heated chamber, known as a hot stage which is placed under a microscope. This resulting image from the microscope is fed via a camera attachment, to a computer. The silicon oil on the slide is heated up slowly by the hot stage which alters the refractive index of the oil. When its refractive index is equal to that of the glass, the glass fragments become invisible! The computer can determine better then the human eye at which point the glass becomes invisible and records the optimum match temperature.

Infrared and Raman Spectroscopy in Forensic Science

The refractive index is then calculated from two match temperatures made by the computer. Using advanced LED technology, Foster Freeman have created a range of compact, battery powered, high-intensity forensic light sources for locating evidence at the scene of a crime. VMD West Technology is a powerful forensic technique that uses the sequential vacuum deposition of gold and zinc to develop latent fingerprints. VMD can be used on a wide range of non-porous and semiporous exhibits including flexible plastic packaging, plastic bottles, glass, fabrics, firearms and glossy paper or magazines.

Infrared spectroscopy and spectroscopic imaging in forensic science - Analyst (RSC Publishing)

The developed prints can be photographed immediately. The sensitive imaging process reacts to sites of microscopic damages to fibres at the surface of a document, which have been created by abrasive interaction with overlying surfaces during the act of handwriting.


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  7. Supported by GLP software. Set up like a city apartment, this new facility provides the students with an interactive and more realistic view in analysing the modern crime scene. Set up like a city apartment, the lab provides students with practical experience in crime scene investigations. Responsibility [edited by] John M. Chalmers, Howell G.

    Raman Spectroscopy in Forensic Science: Igor Lednev

    Edwards, Michael D. Physical description 1 online resource 1 v. Online Available online.

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    More options. Find it at other libraries via WorldCat Limited preview. Contributor Chalmers, John M. Edwards, Howell G.

    Wiley InterScience Online service. Bibliography Includes bibliographical references and index. Summary 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. 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 developments.

    Subject Forensic sciences. Infrared spectroscopy. Raman spectroscopy.