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Books > Science & Mathematics > Chemistry > Analytical chemistry
Determination of Metals in Natural Waters, Sediments and Soils
provides analytic labs with a comprehensive overview of the various
methods available for analysis of metals and serves as a manual to
determine metal concentrations in different media such as natural
waters, waste waters, sediments and soils. The book begins with a
discussion of sampling techniques and preservation and then covers
metals in rivers, surface ground and mineral waters and metals in
aqueous precipitation. It concludes with detailed information on
analysis of metals in sediments. Determination of Metals in Natural
Waters, Sediments and Soils provides a foundation for informed
action by environmental interest groups and regulators and a
starting point for further study by graduate students,
professionals, and researchers.
How will chemists of the future balance competing concerns of
environmental stewardship and innovative, cost-effective product
development? For chemists to accept the idea that environmental
quality and economic prosperity can be intertwined, the concept of
the food-energy-water nexus must first be integrated into
underlying thought processes. Food, Energy and Water: The Chemistry
Connection provides today's scientists with the background
information necessary to fully understand the inextricable link
between food, energy and water and how this conceptual framework
should form the basis for all contemporary research and development
in chemistry in particular, and the sciences in general.
Advanced fiber materials have been developed for various superior
applications because of their higher mechanical flexibility,
high-temperature resistance, and outstanding chemical stability.
This book presents an overview of the current development of
advanced fiber materials, fabrication methods, and applications.
Applications covered include pollution control, environment,
energy, information storage technology, optical and photonic,
photocatalysis, textile, drug delivery, tumor therapy, corrosion
protection applications, and a state of art of advanced fiber
materials.
Metrology is part of the essential but largely hidden
infrastructure of the modern world. This book concentrates on the
infrastructure aspects of metrology. It introduces the underlying
concepts: International system of units, traceability and
uncertainty; and describes the concepts that are implemented to
assure the comparability, reliability and quantifiable trust of
measurement results. It is shown what benefits the traditional
metrological principles have in fields as medicine or in the
evaluation of cyber physical systems.
"Flow Analysis: A Practical Guide "reviews flow techniques for
automating chemical analysis with the goal of increasing efficiency
and producing better analytical results. Various applications for
flow techniques are reviewed including industrial process
monitoring (for example, foods and beverages, drugs and
pharmaceuticals); as well as agricultural, life science,
radioactivity, and environmental analysis with an emphasis on the
latter.
This book is a valuable resource for young scientists or
graduate-level students who want to learn how to introduce flow
techniques into their experiments, and for experts who need
specific and technical details to develop complete experimental
systems.
Includes descriptions of the theoretical and technical bases of the
most important flow techniquesFocuses on new trends in the field
such as using flow techniques for radioactivity and environmental
applicationsFeatures instructions for coupling different types of
detectors online with flow systems
"Laboratory Statistics: Handbook of Formulas and Terms" presents
common strategies for comparing and evaluating numerical laboratory
data. In particular, the text deals with the type of data and
problems thatlaboratory scientists and students in analytical
chemistry, clinical chemistry, epidemiology, and clinical research
face on a daily basis. This book takes the mystery out of
statistics and provides simple, hands-on instructions in the format
of everyday formulas. As far as possible, spreadsheet shortcuts and
functions are included, along with many simple worked examples.
This book isa must-have guide to applied statistics in the lab that
will result in improved experimental design and analysis.
Comprehensive coverage of simple statistical concepts familiarizes
the reader with formatted statistical expressionSimple, worked
examples make formulas easy to use in real lifeSpreadsheet
functions demonstrate how to find immediate solutions to common
problemsIn-depth indexing and frequent use of synonyms facilitate
the quick location of appropriate procedures"
The issues related to food science and authentication are of
particular importance for researchers, consumers and regulatory
entities. The need to guarantee quality foodstuff - where the word
"quality" encompasses many different meanings, including e.g.
nutritional value, safety of use, absence of alteration and
adulterations, genuineness, typicalness, etc. - has led researchers
to look for increasingly effective tools to investigate and deal
with food chemistry problems. As even the simplest food is a
complex matrix, the way to investigate its chemistry cannot be
other than multivariate. Therefore, chemometrics is a necessary and
powerful tool for the field of food analysis and control.
For food science in general and food analysis and control in
particular, there are several problems for which chemometrics are
of utmost importance. Traceability, i.e. the possibility of
verifying the animal/botanical, geographical and/or productive
origin of a foodstuff, is, for instance, one area where the use of
chemometric techniques is not only recommended but essential:
indeed, at present no specific chemical and/or physico-chemical
markers have been identified that can be univocally linked to the
origin of a foodstuff and the only way of obtaining reliable
traceability is by means of multivariate classification applied to
experimental fingerprinting results.
Anotherarea where chemometrics is of particular importance is in
building the bridge between consumer preferences, sensory
attributes and molecular profiling of food: by identifying latent
structures among the data tables, bilinear modeling techniques
(such as PCA, MCR, PLS and its various evolutions) can provide an
interpretable and reliable connection among these domains. Other
problems include process control and monitoring, the possibility of
using RGB or hyperspectral imaging techniques to nondestructively
check food quality, calibration of multidimensional or hyphenated
instruments etc. "
The progress in nuclear magnetic resonance (NMR) spectroscopy
that took place during the last several decades is observed in both
experimental capabilities and theoretical approaches to study the
spectral parameters. The scope of NMR spectroscopy for studying a
large series of molecular problems has notably broadened. However,
at the same time, it requires specialists to fully use its
potentialities. This is a notorious problem and it is reflected in
the current literature where this spectroscopy is typically only
used in a routine way. Also, it is seldom used in several
disciplines in which it could be a powerful tool to study many
problems. The main aim of this book is to try to help reverse these
trends.
This book is divided in three parts dealing with 1)
high-resolution NMR parameters; 2) methods for understanding
high-resolution NMR parameters; and 3) some experimental aspects of
high-resolution NMR parameters for studying molecular structures.
Each part is divided into chapters written by different specialists
who use different methodologies in their work. In turn, each
chapter is divided into sections. Some features of the different
sections are highlighted: it is expected that part of the
readership will be interested only in the basic aspects of some
chapters, while other readers will be interested in deepening their
understanding of the subject dealt with in them.
Shows how NMR parameters are useful for structure assignment as
well as to obtain insight on electronic structuresEmphasis on
conceptual aspects
Contributions by specialists who use the discussed methodologies
in their everyday work
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.
Biopharmaceuticals are a unique class of compounds due to their
extreme structural complexity. The current text puts together a
variety of the state-of-the art approaches that use mass
spectrometry to evaluate various aspects of biopharmaceutical
products ranging from monitoring stress-related structural changes
to their quantitation in pharmacokinetic studies.
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.
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