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Books > Science & Mathematics > Chemistry > Analytical chemistry
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
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.
Translational motion in solution, either diffusion or fluid flow,
is at the heart of chemical and biochemical reactivity. Nuclear
Magnetic Resonance (NMR) provides a powerful non-invasive technique
for studying the phenomena using magnetic field gradient methods.
Describing the physical basis of measurement techniques, with
particular emphasis on diffusion, balancing theory with
experimental observations and assuming little mathematical
knowledge, this is a strong, yet accessible, introduction to the
field. A detailed discussion of magnetic field gradient methods
applied to Magnetic Resonance Imaging (MRI) is included, alongside
extensive referencing throughout, providing a timely, definitive
book to the subject, ideal for researchers in the fields of
physics, chemistry and biology.
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.
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." .
Spectroscopic Properties of Inorganic and Organometallic Compounds:
Techniques, Materials and Applications provides a unique source of
information in an important area of chemistry. Since Volume 40 the
nature and ethos of this series have been altered to reflect a
change of emphasis towards 'Techniques, Materials and
Applications'. Researchers will now find up-to-date critical
reviews which provide in-depth analyses of the leading papers in
the field, with authors commenting of the quality and value of the
work in a wider context. Focus areas will include
structure-function relationships, photochemistry and spectroscopy
of inorganic complexes, and catalysis; materials such as ceramics,
cements, pigments, glasses and corrosion products; techniques such
as advanced laser spectroscopy and theoretical methods.
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.
The aim of this volume is to present the basic mathematical aspects
of the ranking methods using a didactical approach and to explain
their use through examples of relevant applications in different
scientific fields. Ranking methods can be applied in several
different fileds, such as decision support, toxicology, EU priority
lists of toxic chemicals, environmental problems, proteomics and
genomics, analytical chemistry, food chemistry and QSAR.
. Covers a wide range of applications, from the environment and
toxicology to DNA sequencing
. Incorporates contributions from renowned experts in the
field
. Meets the increasing demand for literature concerned with ranking
methods and their applications
Surface-Enhanced Raman Scattering (SERS) was discovered in the
1970s and has since grown enormously in breadth, depth, and
understanding. One of the major characteristics of SERS is its
interdisciplinary nature: it lies at the boundary between physics,
chemistry, colloid science, plasmonics, nanotechnology, and
biology. By their very nature, it is impossible to find a textbook
that will summarize the principles needed for SERS of these rather
dissimilar and disconnected topics. Although a basic understanding
of these topics is necessary for research projects in SERS with all
its many aspects and applications, they are seldom touched upon as
a coherent unit during most undergraduate studies in physics or
chemistry. This book intends to fill this existing gap in the
literature. It provides an overview of the underlying principles of
SERS, from the fundamental understanding of the effect to its
potential applications. It is aimed primarily at newcomers to the
field, graduate student, researcher or scientist, attracted by the
many applications of SERS and plasmonics or its basic science. The
emphasis is on concepts and background material for SERS, such as
Raman spectroscopy, the physics of plasmons, or colloid science,
all of them introduced within the context of SERS, and from where
the more specialised literature can be followed.
* Represents one of very few books fully dedicated to the topic of
surface-enhanced Raman spectroscopy (SERS)
* Gives a comprehensive summary of the underlying physical concepts
around SERS
* Provides a detailed analysis of plasmons and plasmonics
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
A classical metastable state possesses a local free energy minimum
at infinite sizes, but not a global one. This concept is phase size
independent. We have studied a number of experimental results and
proposed a new concept that there exists a wide range of metastable
states in polymers on different length scales where their
metastability is critically determined by the phase size and
dimensionality. Metastable states are also observed in phase
transformations that are kinetically impeded on the pathway to
thermodynamic equilibrium. This was illustrated in structural and
morphological investigations of crystallization and mesophase
transitions, liquid-liquid phase separation, vitrification and gel
formation, as well as combinations of these transformation
processes. The phase behaviours in polymers are thus dominated by
interlinks of metastable states on different length scales. This
concept successfully explains many experimental observations and
provides a new way to connect different aspects of polymer physics.
* Written by a leading scholar and industry expert
* Presents new and cutting edge material encouraging innovation and
future research
* Connects hot topics and leading research in one concise volume
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