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Author : Robert D. Johnson
Publisher :
ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.:/5 (861 download)
Download or read book The LC/MS Quantification of Vardenafil (Levitra®) written by Robert D. Johnson and published by . This book was released on 2006 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robert D. Johnson
Publisher :
ISBN 13 :
Total Pages : 13 pages
Book Rating : 4.:/5 (227 download)
Download or read book The LC/MS Quantitation of Vardenafil (Levitra®) in Postmortem Biological Specimens written by Robert D. Johnson and published by . This book was released on 2006 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the investigation of aviation accidents, postmortem specimens from accident victims are submitted to the Federal Aviation Administration's Civil Aerospace Medical Institute (CAMI) for toxicological analysis. As new medications are introduced to the market and are subsequently used by aviation accident victims, CAMI's forensic toxicology laboratory is tasked with developing analytical methods for the determination of these compounds. This report presents a rapid and reliable method for the identification and quantitation of vardenafil (Levitra) in biological specimens. This procedure utilizes sildenafil-d8, which structurally is closely related to vardenafil, as an internal standard for more accurate and reliable quantitation. The method incorporates solid phase extraction and LC/MS/MS and MS/MS/MS utilizing an atmospheric pressure chemical ionization ion trap mass spectrometer in the positive chemical ionization mode. Solid-phase extraction proved to be exceptionally efficient providing recoveries that ranged from 94-97%. The limit of detection for vardenafil was determined to be 0.19 ng/mL. The linear dynamic range for this compound was 0.39 - 200 ng/mL. This method was successfully applied to postmortem fluid and tissue specimens obtained from an aviation accident victim. This novel analytical procedure proved to be simple, accurate, and robust for the identification and quantitation of vardenafil in postmortem specimens.
Author : Robert David Johnson
Publisher :
ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.:/5 (712 download)
Download or read book The LC/MS Quantitation of Vardenafil (Levitra®) in Postmortem Biological Specimens written by Robert David Johnson and published by . This book was released on 2006 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the investigation of aviation accidents, postmortem specimens from accident victims are submitted to the Federal Aviation Administration's Civil Aerospace Medical Institute (CAMI) for toxicological analysis. As new medications are introduced to the market and are subsequently used by aviation accident victims, CAMI's forensic toxicology laboratory is tasked with developing analytical methods for the determination of these compounds. This report presents a rapid and reliable method for the identification and quantitation of vardenafil (Levitra®) in biological specimens. This procedure utilizes sildenafil-d8, which structurally is closely related to vardenafil, as an internal standard for more accurate and reliable quantitation. The method incorporates solid phase extraction and LC/MS/MS and MS/MS/MS utilizing an atmospheric pressure chemical ionization ion trap mass spectrometer in the positive chemical ionization mode. Solid-phase extraction proved to be exceptionally efficient providing recoveries that ranged from 94-97%. The limit of detection for vardenafil was determined to be 0.19 ng/mL. The linear dynamic range for this compound was 0.39-200 ng/mL. This method was successfully applied to postmortem fluid and tissue specimens obtained from an aviation accident victim. This novel analytical procedure proved to be simple, accurate, and robust for the identification and quantitation of vardenafil in postmortem specimens.
Author :
Publisher :
ISBN 13 :
Total Pages : 13 pages
Book Rating : 4.:/5 (227 download)
Download or read book The LC/MS Quantitation of Vardenafil (Levitra) in Postmortem Biological Specimens written by and published by . This book was released on 2006 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the investigation of aviation accidents, postmortem specimens from accident victims are submitted to the Federal Aviation Administration's Civil Aerospace Medical Institute (CAMI) for toxicological analysis. As new medications are introduced to the market and are subsequently used by aviation accident victims, CAMI's forensic toxicology laboratory is tasked with developing analytical methods for the determination of these compounds. This report presents a rapid and reliable method for the identification and quantitation of vardenafil (Levitra) in biological specimens. This procedure utilizes sildenafil-d8, which structurally is closely related to vardenafil, as an internal standard for more accurate and reliable quantitation. The method incorporates solid phase extraction and LC/MS/MS and MS/MS/MS utilizing an atmospheric pressure chemical ionization ion trap mass spectrometer in the positive chemical ionization mode. Solid-phase extraction proved to be exceptionally efficient providing recoveries that ranged from 94-97%. The limit of detection for vardenafil was determined to be 0.19 ng/mL. The linear dynamic range for this compound was 0.39 - 200 ng/mL. This method was successfully applied to postmortem fluid and tissue specimens obtained from an aviation accident victim. This novel analytical procedure proved to be simple, accurate, and robust for the identification and quantitation of vardenafil in postmortem specimens.
Author : Harry G. Brittain
Publisher : Academic Press
ISBN 13 : 0128004010
Total Pages : 562 pages
Book Rating : 4.1/5 (28 download)
Download or read book Profiles of Drug Substances, Excipients and Related Methodology written by Harry G. Brittain and published by Academic Press. This book was released on 2014-05-01 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volumes in this widely revered series present comprehensive reviews of drug substances and additional materials, with critical review chapters that summarize information related to the characterization of drug substances and excipients. This organizational structure meets the needs of the pharmaceutical community and allows for the development of a timely vehicle for publishing review materials on this topic. The scope of the Profiles series encompasses review articles and database compilations that fall within one of the following six broad categories: Physical profiles of drug substances and excipients; Analytical profiles of drug substances and excipients; Drug metabolism and pharmacokinetic profiles of drug substances and excipients; Methodology related to the characterization of drug substances and excipients; Methods of chemical synthesis; and Reviews of the uses and applications for individual drug substances, classes of drug substances, or excipients. Contributions from leading authorities Informs and updates on all the latest developments in the field
Author : Wilfried M. A. Niessen
Publisher : John Wiley & Sons
ISBN 13 : 1119294258
Total Pages : 799 pages
Book Rating : 4.1/5 (192 download)
Download or read book Interpretation of MS-MS Mass Spectra of Drugs and Pesticides written by Wilfried M. A. Niessen and published by John Wiley & Sons. This book was released on 2017-01-09 with total page 799 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides comprehensive coverage of the interpretation of LC–MS–MS mass spectra of 1300 drugs and pesticides Provides a general discussion on the fragmentation of even-electron ions (protonated and deprotonated molecules) in both positive-ion and negative-ion modes This is the reference book for the interpretation of MS–MS mass spectra of small organic molecules Covers related therapeutic classes of compounds such as drugs for cardiovascular diseases, psychotropic compounds, drugs of abuse and designer drugs, antimicrobials, among many others Covers general fragmentation rule as well as specific fragmentation pathways for many chemical functional groups Gives an introduction to MS technology, mass spectral terminology, information contained in mass spectra, and to the identification strategies used for different types of unknowns
Author : Iwona Wawer
Publisher : Elsevier
ISBN 13 : 008095152X
Total Pages : 525 pages
Book Rating : 4.0/5 (89 download)
Download or read book NMR Spectroscopy in Pharmaceutical Analysis written by Iwona Wawer and published by Elsevier. This book was released on 2017-07-07 with total page 525 pages. Available in PDF, EPUB and Kindle. Book excerpt: For almost a decade, quantitative NMR spectroscopy (qNMR) has been established as valuable tool in drug analysis. In all disciplines, i. e. drug identification, impurity profiling and assay, qNMR can be utilized. Separation techniques such as high performance liquid chromatography, gas chromatography, super fluid chromatography and capillary electrophoresis techniques, govern the purity evaluation of drugs. However, these techniques are not always able to solve the analytical problems often resulting in insufficient methods. Nevertheless such methods find their way into international pharmacopoeias. Thus, the aim of the book is to describe the possibilities of qNMR in pharmaceutical analysis. Beside the introduction to the physical fundamentals and techniques the principles of the application in drug analysis are described: quality evaluation of drugs, polymer characterization, natural products and corresponding reference compounds, metabolism, and solid phase NMR spectroscopy for the characterization drug substances, e.g. the water content, polymorphism, and drug formulations, e.g. tablets, powders. This part is accompanied by more special chapters dealing with representative examples. They give more detailed information by means of concrete examples. Combines theory, techniques, and concrete applications—all of which closely resemble the laboratory experience Considers international pharmacopoeias, addressing the concern for licensing Features the work of academics and researchers, appealing to a broad readership
Author :
Publisher : ScholarlyEditions
ISBN 13 : 1490108475
Total Pages : 1164 pages
Book Rating : 4.4/5 (91 download)
Download or read book Issues in Analysis, Measurement, Monitoring, Imaging, and Remote Sensing Technology: 2013 Edition written by and published by ScholarlyEditions. This book was released on 2013-05-01 with total page 1164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issues in Analysis, Measurement, Monitoring, Imaging, and Remote Sensing Technology: 2013 Edition is a ScholarlyEditions™ book that delivers timely, authoritative, and comprehensive information about Analysis and Measurement. The editors have built Issues in Analysis, Measurement, Monitoring, Imaging, and Remote Sensing Technology: 2013 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Analysis and Measurement in this book to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Analysis, Measurement, Monitoring, Imaging, and Remote Sensing Technology: 2013 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Author : Omar Al Sayed Omar
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 3110528959
Total Pages : 501 pages
Book Rating : 4.1/5 (15 download)
Download or read book High Performance Liquid Chromatography written by Omar Al Sayed Omar and published by Walter de Gruyter GmbH & Co KG. This book was released on 2022-02-21 with total page 501 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the past decade, modern high-performance liquid chromatography (HPLC) utilization has expanded greatly, especially in the quality control of pharmaceutical products in drug quality control laboratories. This book provides an extensive collection of technical information about HPLC-Columns (physicochemical properties and chromatographic characteristics), from various manufacturers, and helps analysts to decide on the ideal approach for their analysis according to the requirements of drug manufacturers specifi cations and the desired Pharmacopeia. In addition, the authors give practical advice on how to prepare mobile phases, choose a suitable detector, and set up an HPLC analysis. This book is comprehensive for the average professional or technician who plans to work with modern HPLC. This book is useful for most Drug Quality Control Laboratories where modern HPLC is utilized. Following a hands-on approach, the book gives key insights into the pharmaceutical applications of HPLC and the latest requirements of the major regulatory agencies such as ICH, FDA, or USP.
Author : Gregory A. Broderick
Publisher : Springer Science & Business Media
ISBN 13 : 158829451X
Total Pages : 458 pages
Book Rating : 4.5/5 (882 download)
Download or read book Oral Pharmacotherapy for Male Sexual Dysfunction written by Gregory A. Broderick and published by Springer Science & Business Media. This book was released on 2005-02 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation Oral Drug Therapy of Male Sexual Dysfunction: A Guide to Clinical Management extensively reviews the physiology and pharmacology of male sexual dysfunction. In addition, it outlines current pharmacologic strategies in the management of erectile dysfunction as well as rapid ejaculation, and previews the next generation of phosphodiesterase inhibitors that are now pending final FDA review. Other areas of interest include the special risk factors that lead to ED and often impede or complicate its treatment, and the distinguishing of facts versus marketing of nutrition supplements in the management of ED.
Author : Institute of Medicine
Publisher : National Academies Press
ISBN 13 : 0309269393
Total Pages : 377 pages
Book Rating : 4.3/5 (92 download)
Download or read book Countering the Problem of Falsified and Substandard Drugs written by Institute of Medicine and published by National Academies Press. This book was released on 2013-06-20 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: The adulteration and fraudulent manufacture of medicines is an old problem, vastly aggravated by modern manufacturing and trade. In the last decade, impotent antimicrobial drugs have compromised the treatment of many deadly diseases in poor countries. More recently, negligent production at a Massachusetts compounding pharmacy sickened hundreds of Americans. While the national drugs regulatory authority (hereafter, the regulatory authority) is responsible for the safety of a country's drug supply, no single country can entirely guarantee this today. The once common use of the term counterfeit to describe any drug that is not what it claims to be is at the heart of the argument. In a narrow, legal sense a counterfeit drug is one that infringes on a registered trademark. The lay meaning is much broader, including any drug made with intentional deceit. Some generic drug companies and civil society groups object to calling bad medicines counterfeit, seeing it as the deliberate conflation of public health and intellectual property concerns. Countering the Problem of Falsified and Substandard Drugs accepts the narrow meaning of counterfeit, and, because the nuances of trademark infringement must be dealt with by courts, case by case, the report does not discuss the problem of counterfeit medicines.
Author : Ruben Vardanyan
Publisher : Academic Press
ISBN 13 : 0124115241
Total Pages : 870 pages
Book Rating : 4.1/5 (241 download)
Download or read book Synthesis of Best-Seller Drugs written by Ruben Vardanyan and published by Academic Press. This book was released on 2016-01-07 with total page 870 pages. Available in PDF, EPUB and Kindle. Book excerpt: Synthesis of Best-Seller Drugs is a key reference guide for all those involved with the design, development, and use of the best-selling drugs. Designed for ease of use, this book provides detailed information on the most popular drugs, using a practical layout arranged according to drug type. Each chapter reviews the main drugs in each of nearly 40 key therapeutic areas, also examining their classification, novel structural features, models of action, and synthesis. Of high interest to all those who work in the captivating areas of biologically active compounds and medicinal drug synthesis, in particular medicinal chemists, biochemists, and pharmacologists, the book aims to support current research efforts, while also encouraging future developments in this important field. Describes methods of synthesis, bioactivity and related drugs in key therapeutic areas Reviews the main drugs in each of nearly 40 key therapeutic areas, also examining their classification, novel structural features, models of action, and more Presents a practical layout designed for use as a quick reference tool by those working in drug design, development and implementation
Author : Sasikumar Dhanarasu
Publisher : BoD – Books on Demand
ISBN 13 : 9535103571
Total Pages : 214 pages
Book Rating : 4.5/5 (351 download)
Download or read book Chromatography and Its Applications written by Sasikumar Dhanarasu and published by BoD – Books on Demand. This book was released on 2012-03-16 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chromatography is a powerful separation tool that is used in all branches of science, and is often the only means of separating components from complex mixtures. The Russian botanist Mikhail Tswett coined the term chromatography in 1906. The first analytical use of chromatography was described by James and Martin in 1952, for the use of gas chromatography for the analysis of fatty acid mixtures. A wide range of chromatographic procedures makes use of differences in size, binding affinities, charge, and other properties. Many types of chromatography have been developed. These include Column chromatography, High performance liquid chromatography (HPLC), Gas chromatography, Size exclusion chromatography, Ion exchange chromatography etc. In this book contains more details about the applications of chromatography by various research findings. Each and every topics of this book have included lists of references at the end to provide students and researchers with starting points for independent chromatography explorations. I welcome comments, criticisms, and suggestions from students, faculty and researchers.
Author :
Publisher : ScholarlyEditions
ISBN 13 : 1464963622
Total Pages : 4876 pages
Book Rating : 4.4/5 (649 download)
Download or read book Issues in Environmental Research and Application: 2011 Edition written by and published by ScholarlyEditions. This book was released on 2012-01-09 with total page 4876 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issues in Environmental Research and Application: 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Environmental Research and Application. The editors have built Issues in Environmental Research and Application: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Environmental Research and Application in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Environmental Research and Application: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Author : John T. Cacioppo
Publisher : Cambridge University Press
ISBN 13 : 1139461931
Total Pages : 912 pages
Book Rating : 4.1/5 (394 download)
Download or read book Handbook of Psychophysiology written by John T. Cacioppo and published by Cambridge University Press. This book was released on 2007-03-05 with total page 912 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Handbook of Psychophysiology, 3rd Edition is an essential reference for students, researchers, and professionals in the behavioral, cognitive, and biological sciences. Psychophysiological methods, paradigms, and theories offer entry to a biological cosmos that does not stop at skin's edge, and this essential reference is designed as a road map for explorers of this cosmos. The scope and coverage in the Handbook have expanded to include both a context for and coverage of the biological bases of cognitive, affective, social, and developmental processes and behavior. In addition to updated coverage of the traditional areas of psychophysiology, coverage of the brain and central nervous system has been expanded to include functional neuroimaging, event related brain potentials, electrophysiological source dipole localization, lesion methods, and transcranial magnetic stimulation. It also includes a section on cellular and humoral systems with attention to the communication across and interactions among cellular, immunological, endocrinological, and neural processes.
Author : Jeremy R. Everett
Publisher : John Wiley & Sons
ISBN 13 : 1118660242
Total Pages : 504 pages
Book Rating : 4.1/5 (186 download)
Download or read book NMR in Pharmaceutical Science written by Jeremy R. Everett and published by John Wiley & Sons. This book was released on 2015-08-20 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: NMR in Pharmaceutical Sciences is intended to be a comprehensive source of information for the many individuals that utilize MR in studies of relevance to the pharmaceutical sector. The book is intended to educate and inform those who develop and apply MR approaches within the wider pharmaceutical environment, emphasizing the toolbox that is available to spectroscopists and radiologists. This book is structured on the key processes in drug discovery, development and manufacture, but underpinned by an understanding of fundamental NMR principles and the unique contribution that NMR (including MRI) can provide. After an introductory chapter, which constitutes an overview, the content is organised into five sections. The first section is on the basics of NMR theory and relevant experimental methods. The rest follow a sequence based on the chronology of drug discovery and development, firstly 'Idea to Lead' then 'Lead to Drug Candidate', followed by 'Clinical Development', and finally 'Drug Manufacture'. The thirty one chapters cover a vast range of topics from analytical chemistry, including aspects involved in regulatory matters and in the prevention of fraud, to clinical imaging studies. Whilst this comprehensive volume will be essential reading for many scientists based in pharmaceutical and related industries, it should also be of considerable value to a much wider range of academic scientists whose research is related to the various aspects of pharmaceutical R&D; for them it will supply vital understanding of pharmaceutical industrial concerns and the basis of key decision making processes. About eMagRes Handbooks eMagRes (formerly the Encyclopedia of Magnetic Resonance) publishes a wide range of online articles on all aspects of magnetic resonance in physics, chemistry, biology and medicine. The existence of this large number of articles, written by experts in various fields, is enabling the publication of a series of eMagRes Handbooks on specific areas of NMR and MRI. The chapters of each of these handbooks will comprise a carefully chosen selection of eMagRes articles. In consultation with the eMagRes Editorial Board, the eMagRes handbooks are coherently planned in advance by specially-selected Editors, and new articles are written to give appropriate complete coverage. The handbooks are intended to be of value and interest to research students, postdoctoral fellows and other researchers learning about the scientific area in question and undertaking relevant experiments, whether in academia or industry. Have the content of this handbook and the complete content of eMagRes at your fingertips! Visit: www.wileyonlinelibrary.com/ref/eMagRes
Author : Werner Dubitzky
Publisher : Springer Science & Business Media
ISBN 13 : 0387475095
Total Pages : 300 pages
Book Rating : 4.3/5 (874 download)
Download or read book Fundamentals of Data Mining in Genomics and Proteomics written by Werner Dubitzky and published by Springer Science & Business Media. This book was released on 2007-04-13 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents state-of-the-art analytical methods from statistics and data mining for the analysis of high-throughput data from genomics and proteomics. It adopts an approach focusing on concepts and applications and presents key analytical techniques for the analysis of genomics and proteomics data by detailing their underlying principles, merits and limitations.
