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Books > Science & Mathematics > Chemistry > Analytical chemistry
This title includes a number of Open Access chapters. This
collection presents a broad selection of recent research on
analytical chemistry, including methods of determination and
analysis as applied to plants, pharmaceuticals, foods, proteins,
and more. Analytical chemistry is the study of what chemicals are
present and in what amount in natural and artificial materials.
Because these understandings are fundamental in just about every
chemical inquiry, analytical chemistry is used to obtain
information, ensure safety, and solve problems in many different
chemical areas, and is essential in both theoretical and applied
chemistry. Analytical chemistry is driven by new and improved
instrumentation.
The book gives a complete overview on today's research, development
and industrialization of fine chemicals from acetylene. The author
provides a comprehensive methodology by covering derivatives from
acetylene reacting with formaldehyde, alcohol, ketone, halogen and
acetic acid. The book offers extensive and practical reference work
for chemists and chemical engineers as well as university teachers
and students.
Organic Structure Determination Using 2-D NMR Spectroscopy: A
Problem-Based Approach, Second Edition, is a primary text for a
course in two-dimensional (2-D) nuclear magnetic resonance (NMR)
techniques, with the goal to learn to identify organic molecular
structure. It presents strategies for assigning resonances to known
structures and for deducing structures of unknown organic molecules
based on their NMR spectra. The book begins with a discussion of
the NMR technique, while subsequent chapters cover instrumental
considerations; data collection, processing, and plotting; chemical
shifts; symmetry and topicity; through-bond effects; and
through-space effects. The book also covers molecular dynamics;
strategies for assigning resonances to atoms within a molecule;
strategies for elucidating unknown molecular structures; simple and
complex assignment problems; and simple and complex unknown
problems. Each chapter includes problems that will enable readers
to test their understanding of the material discussed. The book
contains 30 known and 30 unknown structure determination problems.
It also features a supporting website from which instructors can
download the structures of the unknowns in selected chapters,
digital versions of all figures, and raw data sets for processing.
This book will stand as a single source to which instructors and
students can go to obtain a comprehensive compendium of NMR
problems of varying difficulty.
Oligonucleotides represent one of the most significant
pharmaceutical breakthroughs in recent years, showing great promise
as diagnostic and therapeutic agents for malignant tumors,
cardiovascular disease, diabetes, viral infections, and many other
degenerative disorders. The Handbook of Analysis of
Oligonucleotides and Related Products is an essential reference
manual on the practical application of modern and emerging
analytical techniques for the analysis of this unique class of
compounds. A strong collaboration among thirty leading analytical
scientists from around the world, the book provides readers with a
comprehensive overview of the most commonly used analytical
techniques and their advantages and limitations in assuring the
identity, purity, quality, and strength of an oligonucleotide
intended for therapeutic use. Topics discussed include: Strategies
for enzymatic or chemical degradation of chemically modified
oligonucleotides toward mass spectrometric sequencing Purity
analysis by chromatographic or electrophoretic methods, including
RP-HPLC, AX-HPLC, HILIC, SEC, and CGE Characterization of
sequence-related impurities in oligonucleotides by mass
spectrometry and chromatography Structure elucidation by
spectroscopic methods (IR, NMR, MS) as well as base composition and
thermal melt analysis (Tm) Approaches for the accurate
determination of molar extinction coefficient of oligonucleotides
Accurate determination of assay values Assessment of the overall
quality of oligonucleotides, including microbial analysis and
determination of residual solvents and heavy metals Strategies for
determining the chemical stability of oligonucleotides The use of
hybridization techniques for supporting pharmacokinetics and drug
metabolism studies in preclinical and clinical development Guidance
for the presentation of relevant analytical information towards
meeting current regulatory expectations for oligonucleotide
therapeutics This resource provides a practical guide for applying
state-of-the-art analytical techniques in research, development,
and manufacturing settings.
This book provides basic coverage of the fundamentals and
principles of green chemistry as it applies to chemical analysis.
The main goal of "Green Analytical Chemistry" is to avoid or reduce
the undesirable environmental side effects of chemical analysis,
while preserving the classic analytical parameters of accuracy,
sensitivity, selectivity, and precision. The authors review the
main strategies for greening analytical methods, concentrating on
minimizing sample preparation and handling, reducing solvent and
reagent consumption, reducing energy consumption, minimizing of
waste, operator safety and the economic savings that this approach
offers.
Suggestions are made to educators and editors to standardize
terminology in order to facilitate the identification of analytical
studies on green alternatives in the literature because there is
not a wide and generalized use of a common term that can group
efforts to prevent waste, avoid the use of potentially toxic
reagents or solvents and those involving the decontamination of
wastes.
provides environmentally-friendly alternatives to established
analytical practicefocuses on the cost-saving opportunities
offeredemphasis on laboratory personnel safety
This book focuses on the characterization of the amorphous phase of
polymers, whether they are pure amorphous or semi-crystalline ones,
above Tg or below Tg, by studying the relaxation of dipoles and
space charges naturally found in their structure after they have
been activated by the application of a voltage field. The
experimental deconvolution of the relaxation modes responsible for
internal motion in the amorphous phase is coupled with a
mathematical procedure (Thermal-Windowing Deconvolution-TWD) that
leads to the understanding of their coupling characteristics which,
it is shown, relate to the state of the material itself, for
instance its non-equilibrium state or its internal stress for
matter belonging to interfaces between aggregated or dispersed
phases. Describes quantitatively the Thermal Stimulated
Depolarization techniques of polymer characterization (TSD, TWD),
i.e. how to decouple the relaxation modes collectively interacting
(interactive coupling) and relate it to the thermodynamic
properties of the amorphous phase. Understands the results of
depolarization in terms of the new physics of polymer interactions:
the Dual-Phase model, here applied to the dipoles-space charge
dynamics. Provides a roaster of CASE STUDIES: practical
applications of the TSD and TWD characterization techniques to
describe coupled molecular motions in resins, medical tissues,
wood, blends and block copolymers interfaces, rubbers, can
coatings, internal stress in molded parts, etc
Pyrolysis of Organic Molecules with Applications to Health and
Environmental Issues, the 28th volume in the Techniques and
Instrumentation in Analytical Chemistry series, gives a systematic
and comprehensive description of pyrolysis of non-polymeric organic
molecules. Pyrolysis is involved in many practical applications as
well as in many common human activities, but harmful compounds can
be generated in the process. The study of pyrolysis and of the
formation of undesirable compounds as a result of pyrolytic
processes is of considerable interest to chemists, chemical
engineers, and toxicologists.
Pyrolysis results for compounds not previously studied or
reported. Updated information from a large body of results
published on pyrolysis of individual compounds or classes of
compounds. Information on mechanisms and kinetics of numerous
pyrolytic processes.
Electron paramagnetic resonance (EPR) applications remain highly
significant in modern analytical science and this volume compiles
critical coverage of developments in the recent literature. The
topics covered in this volume describe contrasting types of EPR
application, including rapid scan EPR, using the EPR toolkit to
investigate the structural dynamics of membrane proteins and pulse
dipolar EPR spectroscopy for investigating biomolecular binding
events. An additional chapter reviewing the PARACAT collaboration
from the EU has also been included. Providing a snapshot of the
area by a handpicked group of researchers at the cutting-edge of
the field, this book is a useful addition to any library supporting
this research.
Chapters collected from "The Virtual Conference on Chemistry and
its Applications (VCCA-2021) - Research and Innovations in Chemical
Sciences: Paving the Way Forward". This conference was held in
August 2021 and organized by the Computational Chemistry Group of
the University of Mauritius. These peer-reviewed chapters offer
insights into research on fundamental and applied chemistry with
interdisciplinary subject matter.
Chapters collected from "The Virtual Conference on Chemistry and
its Applications (VCCA-2021) - Research and Innovations in Chemical
Sciences: Paving the Way Forward". This conference was held in
August 2021 and organized by the Computational Chemistry Group of
the University of Mauritius. These peer-reviewed chapters offer
insights into research on fundamental and applied chemistry with
interdisciplinary subject matter.
This book crosses the boundary from exploration- and
production-related chemistry to refining, from upstream through
downstream. It discusses the composition of petroleum through the
use of "petroleum molecular composition continuity model." .
ReAction gives a scientist's and artist's response to the dark and
bright sides of chemistry found in 140 films, most of them
contemporary Hollywood feature films but also a few documentaries,
shorts, silents, and international films.
Even though there are some examples of screen chemistry between the
actors and of behind-the-scenes special effects, this book is
really about the chemistry when it is part of the narrative. It is
about the dualities of Dr. Jekyll vs. inventor chemists, the
invisible man vs. forensic chemists, chemical weapons vs. classroom
chemistry, chemical companies that knowingly pollute the
environment vs. altruistic research chemists trying to make the
world a better place to live, and, finally, about people who choose
to experiment with mind-altering drugs vs. the drug discovery
process.
Little did Jekyll know when he brought the Hyde formula to his lips
that his personality split would provide the central metaphor that
would come to describe chemistry in the movies. This book explores
the two movie faces of this supposedly neutral science. Watching
films with chemical eyes, Dr. Jekyll is recast as a chemist engaged
in psychopharmaceutical research but who becomes addicted to his
own formula. He is balanced by the often wacky inventor chemists
who make their discoveries by trial-and-error.
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