Download or read book Application de la spectrographie raman l analyse des essences min rals et de leurs produits de remplacements written by A. Andant and published by . This book was released on 1943 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Application de la spectrographie Raman l analyse des essences min rales et de leurs produits de remplacement written by Antonin Andant and published by . This book was released on 1943 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Application de la spectrographie Raman l analyse des essences min rales written by Antonin Andant and published by . This book was released on 1936 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Raman Spectroscopy for Chemical Analysis written by Richard L. McCreery and published by John Wiley & Sons. This book was released on 2005-02-25 with total page 451 pages. Available in PDF, EPUB and Kindle. Book excerpt: Minimaler Aufwand bei der Probenvorbereitung, hoher Informationsgehalt des Spektrums und die Möglichkeit, mit festen Proben zu arbeiten, machen die Raman-Spektroskopie zunehmend attraktiv. Wie man diese Methode mit modernster Ausrüstung effizient anwendet, zeigt Ihnen das vorliegende Buch. Im Mittelpunkt stehen neue Entwicklungen wie CCDs, Diodenlaser und Fourier-Transform-Techniken. Behandelt werden auch quantitative Analysen, die in der bisher vorhandenen Literatur häufig zu kurz kamen. (08/00)
Download or read book Raman Spectroscopy written by Herman Szymanski and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: Raman Spectroscopy, Volume 1, was conceived to provide integrated and comprehensive coverage of all aspects of the field by a group of specialists. However, in the three years since the first volume was published much important work has been done. Since Volume 1 was very well received, this second volume has been prepared in the belief that an extension of the coverage it offers will satisfy a real need in this rapidly changing and extremely interesting field. Any pretension to comprehensive coverage, however, had to be abandoned. In order to keep the material in a work of this nature up to date, a cutoff date has to be set. Inevitably one or two of the planned articles fail to materialize by this deadline, and other interesting topics may come into focus too late to permit the preparation of a worthwhile discussion by the target date. Still, in fairness to those authors who kept to the schedule, the cutoff date has to be enforced, even though this means sacrificing breadth of coverage to timeliness. I wish to thank all the contributors to this volume for their effort, their cooperation, and their punctuality, and it is my hope that the policy I have followed will result in the presentation of current thought on a series of interesting aspects of the subject of Raman spectroscopy. May 1970 H.A.S. Contents Chapter 1 Vibrational Rules of Selection and Polarization: Their Practical Uses and Limitations .................... .
Download or read book Application de la spectographie Raman l analyse des essences min rales written by Antonin Andant and published by . This book was released on 1936 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Practical Raman Spectroscopy written by Heather J. Bowley and published by Springer. This book was released on 1989-04-21 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book provides a practical guide to important and frequently encountered techniques in Raman spectroscopy. It comprises a valuable working reference as well as a useful introduction to the technique; emphasis throughout the book is on advice from experienced workers in the subject. The theoretical content of the book has been kept to a minimum and chapters dealing with instumentation, sample handling, data aquisition and analysis, calibration, and microscopy are treated to emphasise the practical aspects of the various branches of the subject. Tables of useful data are included.
Download or read book Analytical Applications of Raman Spectroscopy written by Michael J. Pelletier and published by Wiley-Blackwell. This book was released on 1999-05-04 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is written for chemists, chemical engineers and chemical technologists who are not expert users of Raman spectroscopy technology. The background to the technique is covered along with its analytical applications. A brief introduction to Raman spectroscopy and instrumentation in general is included, along with detailed explanations of the advantages of Raman over other techniques. Emphasis is placed on the way it has been used to solve a range of analytical problems in the chemical and allied industries.
Download or read book La spectroscopie Raman comme outil d identification des mati res premi res usage pharmaceutique written by Marion Halimi and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Selon les Bonnes Pratiques de Fabrication, le contenu de chaque récipient de Matière Première à Usage Pharmaceutique (MPUP) réceptionné sur un site de production doit, avant toute utilisation, être identifié. La réalisation de ce contrôle d'identification, dont les spécifications sont détaillées au sein des Pharmacopées (Européenne, Japonaise) et/ou de l'USP (Etats-Unis), implique un échantillonnage de chaque récipient, soit une perte directe de matière utilisable en production, et une analyse en laboratoire, monopolisant souvent les automates plusieurs heures. La spectroscopie Raman est une technique d'identification de la matière, reconnue par les Pharmacopées et l'USP, se basant sur la diffusion inélastique d'un rayonnement Laser par un échantillon de matière. La différence d'énergie entre les rayons incidents et diffusés est spécifique des liaisons moléculaires et permet ainsi d'identifier précisement un produit dans un temps très court (de l'ordre de la minute). Cette méthode d'analyse non destructive, très sensible et reproductive est particulièrement adaptée à l'identification des matières premières en raison de ses nombreux avantages, comme la possibilité d'analyser les produits directement à travers leurs conditionnements, s'ils sont transparents, supprimant ainsi l'étape délicate de prélèvement. En 2011, l'entreprise pharmaceutique allemande Rotexmedica GmbH a choisi de mettre en place la spectroscopie Raman comme méthode d'identification des matières premières. Cette thèse a pour objectif d'exposer les différentes étapes de qualification (conception, installation, opérationnelle et performance) d'un spectromètre Raman portable, le TruScan Analyser®.
Download or read book Raman Spectroscopy in Cultural Heritage Preservation written by Howell G. M. Edwards and published by Springer. This book was released on 2022-11-17 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses the application of Raman spectroscopic techniques to a range of diverse problems which arise in the study, conservation and restoration of artefacts and sites closely related to our cultural heritage as well as in authentication. These themes are naturally wider than what at first might be considered as artworks and archaeological artefacts and the topics include pigments, paintings, ceramics, glass, sculpture and patination / corrosion, textiles, industrial archaeology, the degradation and preservation of biomaterials, mummies and human skeletal remains. An interesting feature is the inclusion of modern case studies which describe specific problems and approaches to the Raman spectral analysis of items important to our cultural heritage. The text is prefaced with an introduction to the important parameters used in nondestructive Raman measurements and also highlights some future applications based upon novel miniaturised instrumentation for in-field studies and potential screening work which will identify specimens which would repay further studies in the laboratory. An attempt is made to give a snapshot of the state-of-the-art evolution since the beginning of the technique (1970s) and to point out potential further development. The book is co-edited by three international experts with many years' experience in the application of Raman spectroscopy to artworks, archaeological artefacts and in the investigation of materials and sites for cultural heritage preservation and each editor has undertaken to write individual chapters and different topics personally. The adopted approach is designed to convey the sort of information which has become available from the adoption of analytical Raman spectroscopy to different problems in the field of cultural heritage preservation through the spectral interrogation of artefacts and how the interpretation of the spectral data can assist museum curators, archaeologists and cultural heritage historians in the preservation and conservation of ancient materials and sites : a particular advantage in this respect is the ability of Raman spectroscopy to determine –generally in a strictly noninvasive procedure - at the laboratory or on-site with mobile instruments, the presence of both organic and inorganic components in a particular specimen together nondestructively without any chemical and mechanical pretreatment being undertaken, which is an essential requirement for rare and valuable samples . An important aside from this work is the means of spectral identification of ongoing biodeterioration and biological colonisation in specimens in storage and the effects of environmental deterioration such as humidity and temperature upon their integrity.
Download or read book Modern Techniques in Raman Spectroscopy written by J. J. Laserna and published by John Wiley & Sons. This book was released on 1996-09-10 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Raman spectroscopy is now well established as one of the most versatile techniques for the chemical analysis of molecular species. Major advances have been made in a number of areas in the field in recent years which enable the researcher and practising analytical scientist to solve the complex chemical problems of today. The ten chapters in Modern Techniques in Raman Spectroscopy cover some of the most exciting fields of research in modern Raman techniques, and illustrate the power of modern Raman spectroscopy for molecular analysis in both theoretical and practical problems. The volume opens with chapters on signal expressions and instrumentation in Raman spectroscopy, and then goes on to discuss in detail Fourier and Hadamard Transform Raman spectroscopies, micro-Raman spectroscopy, surface-enhanced Raman spectroscopy, Raman optical activity, coherent and time-resolved techniques and the use of optical fibres in Raman spectroscopy. The chapters are written by leading researchers from a broad range of disciplines. Throughout, applications of the various techniques are discussed. Modern Techniques in Raman Spectroscopy will be of great interest to all those involved in molecular spectroscopy, in both industry and academia. The inclusion of a wide range of modern techniques in a single volume will make this a particularly valuable work to researchers across the whole field of Raman spectroscopy.
Download or read book Application of in Situ One dimensional Raman Spectroscopy for Mass Transport Analysis During Drying Processes at Elevated Pressure Conditions written by Jaypee Quiño and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Application de techniques de s paration de sources la spectroscopie Raman et la spectroscopie de fluorescence written by Cyril Gobinet and published by . This book was released on 2006 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les techniques de spectroscopies optiques fournissent des informations moléculaires sur un échantillon. Leur séparation est nécessaire pour identifier les espèces présentes et analyser leur distribution spatiale. La modélisation des données et l'analyse de leurs propriétés nous permettent de désigner des techniques de séparation de sources propres à chaque spectroscopie. La positivité et la forme à variations lentes des spectres suggèrent l'utilisation de la Factorisation en Matrices Non-négatives (FMN) pour séparer les informations. Son efficacité est illustrée sur des grains de blé et d'orge dont les acides phénoliques principaux sont identifiés par la FMN. L'acide férulique, constituant principal de la couche à aleurone qui est indicatrice de la qualité d'une farine, peut être utilisé comme un indicateur de la contamination d'une farine par les sons. Ensuite, une méthode de déparaffinage numérique basée sur l'association de la spectroscopie Raman et de l'Analyse en Composantes Indépendantes (ACI) est proposée. La propriété d'indépendance chimique entre les espèces constitutives d'un échantillon et les propriétés de parcimonie et de décorrélation de leurs spectres Raman suffisent à admettre leur indépendance mutuelle. L'application de l'ACI permet d'estimer les spectres de la paraffine, de la fluorine et du tissu sous-jacent. Lors de l'application de cette procédure sur des échantillons paraffinés de peau, la paraffine est prouvée comme modélisable par trois sources indépendantes, et les spectres d'épidermes de mélanome et de naevus sont isolés. La mise en évidence de descripteurs moléculaires rend possible la discrimination entre ces deux types de pathologies.
Download or read book APPLICATION DE LA SPECTROSCOPIE RAMAN A L ETUDE THERMODYNAMIQUE ET STRUCTURALE DE LA VAPEUR DE SOUFRE A HAUTE TEMPERATURE written by PASCALE.. LENAIN and published by . This book was released on 1985 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: ETUDE DES ESPECES SI (2 OU= I
Download or read book Physically based Models for the Analysis of Raman Spectra written by Peter Beumers and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Application de la spectroscopie Raman haute pression et haute temp rature l tude des propri t s thermodynamiques et des m canismes de transformation des silicates et leurs analogues written by Fouzia Takir and published by . This book was released on 1995 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: La stabilité, Les propriétés thermodynamiques et les transitions de phase de minéraux majeurs du manteau terrestre et de leurs analogues ont été étudiés expérimentalement par spectroscopie Raman In-Situ à haute pression (HP) et haute température (HT). Une analyse détaillée des modes vibrationnels par la théorie des groupes et des spectres Raman des composés étudiés a permis la construction des modèles de densité d'états vibrationnels et le calcul des propriétés thermodynamiques. Les spectres Raman HP-HT ont permis de quantifier les effets anharmoniques dans la phase spinelle modifié MG#2SIO#4. Ses propriétés thermodynamiques ont été ensuite calculées en introduisant des corrections anharmoniques. La même démarche de quantification a été appliquée aux phases Olivine et Spinelle modifie dans le système analogue MN#2GEO#4 et Olivine et Spinelle de MG#2GEO#4. Les résultats montrent que les différences d'anharmonicité entre les phases olivines et spinelle-modifié ou spinelle ont une faible influence sur les diagrammes de phases à haute pression. Enfin, les spectres raman HP-HT de différents composés de strutureE ilménite ont été utilisés pour déterminer les relations entre cristallochimie et anharmonicité et les conditions d'apparition d'une transition ordre-désordre. La deuxième partie de cette étude a été consacrée aux mécanismes de transformation entre olivines et spinelles. L'étude par spectroscopie Raman à haute pression et température ambiante d'une olivine analogue MN#2GEO#4 et à haute température de la transformation spinelle-modifié->Olivine de MG#2SIO#4, suggèrent qu'un mécanisme de type martensitique peut être favorisé par des conditions loin de l'équilibre thermodynamique, typiques des zones de subduction
Download or read book Application de la spectrom trie Raman l tude des sels de graphite written by Bachir Iskander and published by . This book was released on 1980 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
