Comprehensive Chemometrics

Comprehensive Chemometrics
Author: Steven Brown
Publsiher: Elsevier
Total Pages: 2896
Release: 2009-03-09
ISBN: 044452701X
Category: Science
Language: EN, FR, DE, ES & NL

Comprehensive Chemometrics Book Excerpt:

Designed to serve as the first point of reference on the subject, Comprehensive Chemometrics presents an integrated summary of the present state of chemical and biochemical data analysis and manipulation. The work covers all major areas ranging from statistics to data acquisition, analysis, and applications. This major reference work provides broad-ranging, validated summaries of the major topics in chemometrics—with chapter introductions and advanced reviews for each area. The level of material is appropriate for graduate students as well as active researchers seeking a ready reference on obtaining and analyzing scientific data. Features the contributions of leading experts from 21 countries, under the guidance of the Editors-in-Chief and a team of specialist Section Editors: L. Buydens; D. Coomans; P. Van Espen; A. De Juan; J.H. Kalivas; B.K. Lavine; R. Leardi; R. Phan-Tan-Luu; L.A. Sarabia; and J. Trygg Examines the merits and limitations of each technique through practical examples and extensive visuals: 368 tables and more than 1,300 illustrations (750 in full color) Integrates coverage of chemical and biological methods, allowing readers to consider and test a range of techniques Consists of 2,200 pages and more than 90 review articles, making it the most comprehensive work of its kind Offers print and online purchase options, the latter of which delivers flexibility, accessibility, and usability through the search tools and other productivity-enhancing features of ScienceDirect

Comprehensive Chemometrics

Comprehensive Chemometrics
Author: Steven Brown,Roma Tauler,Beata Walczak
Publsiher: Elsevier
Total Pages: 2944
Release: 2020-05-26
ISBN: 0444641661
Category: Science
Language: EN, FR, DE, ES & NL

Comprehensive Chemometrics Book Excerpt:

Comprehensive Chemometrics, Second Edition features expanded and updated coverage, along with new content that covers advances in the field since the previous edition published in 2009. Subject of note include updates in the fields of multidimensional and megavariate data analysis, omics data analysis, big chemical and biochemical data analysis, data fusion and sparse methods. The book follows a similar structure to the previous edition, using the same section titles to frame articles. Many chapters from the previous edition are updated, but there are also many new chapters on the latest developments. Presents integrated reviews of each chemical and biological method, examining their merits and limitations through practical examples and extensive visuals Bridges a gap in knowledge, covering developments in the field since the first edition published in 2009 Meticulously organized, with articles split into 4 sections and 12 sub-sections on key topics to allow students, researchers and professionals to find relevant information quickly and easily Written by academics and practitioners from various fields and regions to ensure that the knowledge within is easily understood and applicable to a large audience Presents integrated reviews of each chemical and biological method, examining their merits and limitations through practical examples and extensive visuals Bridges a gap in knowledge, covering developments in the field since the first edition published in 2009 Meticulously organized, with articles split into 4 sections and 12 sub-sections on key topics to allow students, researchers and professionals to find relevant information quickly and easily Written by academics and practitioners from various fields and regions to ensure that the knowledge within is easily understood and applicable to a large audience

Chemometrics in Chromatography

Chemometrics in Chromatography
Author: Łukasz Komsta,Yvan Vander Heyden,Joseph Sherma
Publsiher: CRC Press
Total Pages: 506
Release: 2018-02-02
ISBN: 1498772544
Category: Science
Language: EN, FR, DE, ES & NL

Chemometrics in Chromatography Book Excerpt:

Chemometrics uses advanced mathematical and statistical algorithms to provide maximum chemical information by analyzing chemical data, and obtain knowledge of chemical systems. Chemometrics significantly extends the possibilities of chromatography and with the technological advances of the personal computer and continuous development of open-source software, many laboratories are interested in incorporating chemometrics into their chromatographic methods. This book is an up-to-date reference that presents the most important information about each area of chemometrics used in chromatography, demonstrating its effective use when applied to a chromatographic separation.

Chemometrics in Food Chemistry

Chemometrics in Food Chemistry
Author: Ivana Stanimirova,Michał Daszykowski,Beata Walczak
Publsiher: Elsevier Inc. Chapters
Total Pages: 512
Release: 2013-06-08
ISBN: 0128083298
Category: Science
Language: EN, FR, DE, ES & NL

Chemometrics in Food Chemistry Book Excerpt:

In this chapter, foundations of robust statistics are introduced, including classic and robust estimators as well as their statistical properties (breakdown point, efficiency, influence function and equivariance property). Then, some robust methods that have gained popularity in recent years are presented. The major benefit of using robust methods stems from the fact that they help providing stable estimates for data containing outliers (food samples that have considerably different compositions in comparison with the majority of samples). Regardless of reasons for their uniqueness, outliers strongly affect data interpretation when any method with the least-squares cost function is used. Therefore, robust methods are more suitable to explore and model data containing natural samples when outliers are expected. In addition to exploration and modeling of multivariate data, processing of incomplete multivariate data that contain outliers is also discussed.

Chemometrics

Chemometrics
Author: Richard G. Brereton
Publsiher: John Wiley & Sons
Total Pages: 464
Release: 2018-05-29
ISBN: 1118904664
Category: Science
Language: EN, FR, DE, ES & NL

Chemometrics Book Excerpt:

A new, full-color, completely updated edition of the key practical guide to chemometrics This new edition of this practical guide on chemometrics, emphasizes the principles and applications behind the main ideas in the field using numerical and graphical examples, which can then be applied to a wide variety of problems in chemistry, biology, chemical engineering, and allied disciplines. Presented in full color, it features expansion of the principal component analysis, classification, multivariate evolutionary signal and statistical distributions sections, and new case studies in metabolomics, as well as extensive updates throughout. Aimed at the large number of users of chemometrics, it includes extensive worked problems and chapters explaining how to analyze datasets, in addition to updated descriptions of how to apply Excel and Matlab for chemometrics. Chemometrics: Data Driven Extraction for Science, Second Edition offers chapters covering: experimental design, signal processing, pattern recognition, calibration, and evolutionary data. The pattern recognition chapter from the first edition is divided into two separate ones: Principal Component Analysis/Cluster Analysis, and Classification. It also includes new descriptions of Alternating Least Squares (ALS) and Iterative Target Transformation Factor Analysis (ITTFA). Updated descriptions of wavelets and Bayesian methods are included. Includes updated chapters of the classic chemometric methods (e.g. experimental design, signal processing, etc.) Introduces metabolomics-type examples alongside those from analytical chemistry Features problems at the end of each chapter to illustrate the broad applicability of the methods in different fields Supplemented with data sets and solutions to the problems on a dedicated website Chemometrics: Data Driven Extraction for Science, Second Edition is recommended for post-graduate students of chemometrics as well as applied scientists (e.g. chemists, biochemists, engineers, statisticians) working in all areas of data analysis.

Advances in Chromatography

Advances in Chromatography
Author: Eli Grushka,Nelu Grinberg
Publsiher: CRC Press
Total Pages: 465
Release: 2012-01-27
ISBN: 1439858446
Category: Medical
Language: EN, FR, DE, ES & NL

Advances in Chromatography Book Excerpt:

For more than four decades, scientists and researchers have relied on the Advances in Chromatography series for the most up-to-date information on a wide range of developments in chromatographic methods and applications. For Volume 50, the series editors have invited established, well-known chemists from across the globe to offer cutting-edge reviews on their areas of expertise. The clear presentation of topics and vivid illustrations for which this series has become known makes the material accessible and engaging to analytical, biochemical, organic, polymer, and pharmaceutical chemists at all levels of technical skill.

Chemometrics in Food Chemistry

Chemometrics in Food Chemistry
Author: Anonim
Publsiher: Newnes
Total Pages: 512
Release: 2013-06-08
ISBN: 0444595295
Category: Science
Language: EN, FR, DE, ES & NL

Chemometrics in Food Chemistry Book Excerpt:

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. Another area 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.

Chemometrics in Food Chemistry

Chemometrics in Food Chemistry
Author: Mario Li Vigni,Caterina Durante,Marina Cocchi
Publsiher: Elsevier Inc. Chapters
Total Pages: 512
Release: 2013-06-08
ISBN: 0128083247
Category: Science
Language: EN, FR, DE, ES & NL

Chemometrics in Food Chemistry Book Excerpt:

In the food research and production field, system complexity is increasing and several new challenges are emerging every day. This implies an urgent necessity to extract information and obtain models capable of inferring the underlying relationships that link all the variability sources which characterize food or its production process (e.g. compositional profile, processing conditions) to very general end properties of foodstuff, such as the healthiness, the consumer perception, the link to a territory and the effect of the production chain itself on food. This makes a ‘deductive’ theory-driven research approach inefficient, as it is often difficult to formulate hypotheses. Explorative multivariate data analysis methods, together with the most recent analytical instrumentation, offer the possibility to come back to an ‘inductive’ data-driven attitude with a minimum of a priori hypotheses, instead helping in formulating new ones from the direct observation of data. The aim of this chapter is to offer the reader an overview of the most significant tools that can be used in a preliminary, exploratory phase, ranging from the most classical descriptive statistics methods, to multivariate analysis methods, with particular attention to projection methods. For all techniques, examples are given so that the main advantage of these techniques, which is a direct, graphical representation of data and their characteristics, can be immediately experienced by the reader.

Chemometrics

Chemometrics
Author: Matthias Otto
Publsiher: John Wiley & Sons
Total Pages: 400
Release: 2016-09-30
ISBN: 3527699368
Category: Science
Language: EN, FR, DE, ES & NL

Chemometrics Book Excerpt:

The third edition of this long-selling introductory textbook and ready reference covers all pertinent topics, from basic statistics via modeling and databases right up to the latest regulatory issues. The experienced and internationally recognized author, Matthias Otto, introduces the statistical-mathematical evaluation of chemical measurements, especially analytical ones, going on to provide a modern approach to signal processing, designing and optimizing experiments, pattern recognition and classification, as well as modeling simple and nonlinear relationships. Analytical databases are equally covered as are applications of multiway analysis, artificial intelligence, fuzzy theory, neural networks, and genetic algorithms. The new edition has 10% new content to cover such recent developments as orthogonal signal correction and new data exchange formats, tree based classification and regression, independent component analysis, ensemble methods and neuro-fuzzy systems. It still retains, however, the proven features from previous editions: worked examples, questions and problems, additional information and brief explanations in the margin.

Chemometrics and Cheminformatics in Aquatic Toxicology

Chemometrics and Cheminformatics in Aquatic Toxicology
Author: Kunal Roy
Publsiher: John Wiley & Sons
Total Pages: 592
Release: 2022-01-06
ISBN: 1119681596
Category: Science
Language: EN, FR, DE, ES & NL

Chemometrics and Cheminformatics in Aquatic Toxicology Book Excerpt:

Explore chemometric and cheminformatic techniques and tools in aquatic toxicology Chemometrics and Cheminformatics in Aquatic Toxicology delivers an exploration of the existing and emerging problems of contamination of the aquatic environment through various metal and organic pollutants, including industrial chemicals, pharmaceuticals, cosmetics, biocides, nanomaterials, pesticides, surfactants, dyes, and more. The book discusses different chemometric and cheminformatic tools for non-experts and their application to the analysis and modeling of toxicity data of chemicals to various aquatic organisms. You’ll learn about a variety of aquatic toxicity databases and chemometric software tools and webservers as well as practical examples of model development, including illustrations. You’ll also find case studies and literature reports to round out your understanding of the subject. Finally, you’ll learn about tools and protocols including machine learning, data mining, and QSAR and ligand-based chemical design methods. Readers will also benefit from the inclusion of: A thorough introduction to chemometric and cheminformatic tools and techniques, including machine learning and data mining An exploration of aquatic toxicity databases, chemometric software tools, and webservers Practical examples and case studies to highlight and illustrate the concepts contained within the book A concise treatment of chemometric and cheminformatic tools and their application to the analysis and modeling of toxicity data Perfect for researchers and students in chemistry and the environmental and pharmaceutical sciences, Chemometrics and Cheminformatics in Aquatic Toxicology will also earn a place in the libraries of professionals in the chemical industry and regulators whose work involves chemometrics.

Resolving Spectral Mixtures

Resolving Spectral Mixtures
Author: Anonim
Publsiher: Elsevier
Total Pages: 674
Release: 2016-08-13
ISBN: 0444636447
Category: Science
Language: EN, FR, DE, ES & NL

Resolving Spectral Mixtures Book Excerpt:

Resolving Spectral Mixtures: With Applications from Ultrafast Time-Resolved Spectroscopy to Superresolution Imaging offers a comprehensive look into the most important models and frameworks essential to resolving the spectral unmixing problem—from multivariate curve resolution and multi-way analysis to Bayesian positive source separation and nonlinear unmixing. Unravelling total spectral data into the contributions from individual unknown components with limited prior information is a complex problem that has attracted continuous interest for almost four decades. Spectral unmixing is a topic of interest in statistics, chemometrics, signal processing, and image analysis. For decades, researchers from these fields were often unaware of the work in other disciplines due to their different scientific and technical backgrounds and interest in different objects or samples. This led to the development of quite different approaches to solving the same problem. This multi-authored book will bridge the gap between disciplines with contributions from a number of well-known and strongly active chemometric and signal processing research groups. Among chemists, multivariate curve resolution methods are preferred to extract information about the nature, amount, and location in time (process) and space (imaging and microscopy) of chemical constituents in complex samples. In signal processing, assumptions are usually around statistical independence of the extracted components. However, the chapters include the complexity of the spectral data to be unmixed as well as dimensionality and size of the data sets. Advanced spectroscopy is the key thread linking the different chapters. Applications cover a large part of the electromagnetic spectrum. Time-resolution ranges from femtosecond to second in process spectroscopy and spatial resolution covers the submicronic to macroscopic scale in hyperspectral imaging. Demonstrates how and why data analysis, signal processing, and chemometrics are essential to the spectral unmixing problem Guides the reader through the fundamentals and details of the different methods Presents extensive plots, graphical representations, and illustrations to help readers understand the features of different techniques and to interpret results Bridges the gap between disciplines with contributions from a number of well-known and highly active chemometric and signal processing research groups

State Estimation in Chemometrics

State Estimation in Chemometrics
Author: Pierre C. Thijssen,Sillas Hadjiloucas
Publsiher: Woodhead Publishing
Total Pages: 294
Release: 2020-08-15
ISBN: 0081026226
Category: Science
Language: EN, FR, DE, ES & NL

State Estimation in Chemometrics Book Excerpt:

This unique text blends together state estimation and chemometrics for the application of advanced data-processing techniques. State Estimation in Chemometrics, second edition describes the basic methods for chemical analysis—the multicomponent, calibration and titration systems—from a new perspective. It succinctly reviews the history of state estimation and chemometrics and provides examples of its many applications, including classical estimation, state estimation, nonlinear estimation, the multicomponent, calibration and titration systems and the Kalman filter. The concepts are introduced in a logical way and built up systematically to appeal to specialist post-graduates working in this area as well as professionals in other areas of chemistry and engineering. This new edition covers the latest research in chemometrics, appealing to readers in bio-engineering, food science, pharmacy, and the life sciences fostering cross-disciplinary research. Features a new chapter surveying the most up-to-date scientific literature on chemometrics, highlighting developments that have occurred since the first edition published Includes a new chapter devoted to new applications for state estimation in chemometrics Covers a new chapter entirely devoted to subspace identification methods Provides several new real-life examples of methods such as multiple modeling, principal component analysis, iterative target transformation factor analysis, and the generalized standard addition method

Chemometrics in Excel

Chemometrics in Excel
Author: Alexey L. Pomerantsev
Publsiher: John Wiley & Sons
Total Pages: 336
Release: 2014-05-19
ISBN: 1118605357
Category: Computers
Language: EN, FR, DE, ES & NL

Chemometrics in Excel Book Excerpt:

Providing an easy explanation of the fundamentals, methods, and applications of chemometrics • Acts as a practical guide to multivariate data analysis techniques • Explains the methods used in Chemometrics and teaches the reader to perform all relevant calculations • Presents the basic chemometric methods as worksheet functions in Excel • Includes Chemometrics Add In for download which uses Microsoft Excel® for chemometrics training • Online downloads includes workbooks with examples

Chemometrics in Food Chemistry

Chemometrics in Food Chemistry
Author: Marta Bevilacqua,Remo Bucci,Andrea D. Magrì,Antonio L. Magrì,Riccardo Nescatelli,Federico Marini
Publsiher: Elsevier Inc. Chapters
Total Pages: 512
Release: 2013-06-08
ISBN: 0128083263
Category: Science
Language: EN, FR, DE, ES & NL

Chemometrics in Food Chemistry Book Excerpt:

This chapter describes the basic theory about classification, starting from a general description of the different approaches to classification and then illustrating in detail the principal methods which are used in the framework of assessment of food quality. Examples of application of the methods to different data sets are also provided.

Fundamentals and Analytical Applications of Multiway Calibration

Fundamentals and Analytical Applications of Multiway Calibration
Author: Anonim
Publsiher: Elsevier
Total Pages: 618
Release: 2015-08-10
ISBN: 0444635378
Category: Science
Language: EN, FR, DE, ES & NL

Fundamentals and Analytical Applications of Multiway Calibration Book Excerpt:

Fundamentals and Analytical Applications of Multi-Way Calibration presents researchers with a set of effective tools they can use to obtain the maximum information from instrumental data. It includes the most advanced techniques, methods, and algorithms related to multi-way calibration and the ways they can be applied to solve actual analytical problems. This book provides a comprehensive coverage of the main aspects of multi-way analysis, including fundamentals and selected applications of chemometrics that can resolve complex analytical chemistry problems through the use of multi-way calibration. Includes the most advanced techniques, methods, and algorithms related to multi-way calibration and the ways they can be applied to solve actual analytical problems Presents researchers with a set of effective tools they can use to obtain the maximum information from instrumental data Provides comprehensive coverage of the main aspects of multi-way analysis, including fundamentals and selected applications of chemometrics

Chemometrics in Food Chemistry

Chemometrics in Food Chemistry
Author: Lucia Bertacchini,Marina Cocchi,Mario Li Vigni,Andrea Marchetti,Elisa Salvatore,Simona Sighinolfi,Michele Silvestri,Caterina Durante
Publsiher: Elsevier Inc. Chapters
Total Pages: 512
Release: 2013-06-08
ISBN: 012808331X
Category: Science
Language: EN, FR, DE, ES & NL

Chemometrics in Food Chemistry Book Excerpt:

In the last decades, mankind has become totally aware about the importance of food quality: nowadays authentication and traceability are words of general use. Food authentication verifies how much a food is in accordance with its label description and law and it could be considered a further guarantee for the quality and safety of a foodstuff. The traceability of food could be considered an essential element in ensuring safety and high quality of food. The synergistic use of instrumental analytical techniques and chemometrics represents a promising way to obtain trustworthy results in the development of authenticity and traceability models. This chapter deals with the potentialities of chemometrics tools in resolving some real issues related to food traceability and authenticity. Particular attention will be paid to the use of some exploratory, classification, and discrimination techniques. In the first part of this chapter, a briefly description of European regulations (Authenticity and Traceability: the European Union point of view), and traceability and authenticity markers (Authenticity and Traceability: a scientific point of view) is reported. The second part is split into two sections: namely Food Authenticity and Food Traceability applications, where the main features and advantages of some chemometrics approaches are presented.

Chemometrics in Food Chemistry

Chemometrics in Food Chemistry
Author: Francesco Savorani,Morten Arendt Rasmussen,Åsmund Rinnan,Søren Balling Engelsen
Publsiher: Elsevier Inc. Chapters
Total Pages: 512
Release: 2013-06-08
ISBN: 0128083336
Category: Science
Language: EN, FR, DE, ES & NL

Chemometrics in Food Chemistry Book Excerpt:

In classical empirical research a model requires that the number of variables must be less than the number of observations, but developments in chemometrics and modern analytical platforms have pushed people beyond the classical model. Typical “omics” data sets will include 100–1000 samples and often more than 10,000 variables and the advantage of using chemometrics to large data structures is the ability to efficiently deal with collinear data sets with many more variables than samples. However, the trend with ever more variables also pushes the chemometric tools to the limit as they will also increase the extent of spurious correlations and interferences. This chapter advocates for a systematic breakdown of the variable space in intervals in order to improve the interpretability and performance of chemometric methods. The term “i-chemometrics” is here introduced to encompass the whole class of interval-based chemometric methods. This chapter will describe the advantages of using the generic i-chemometric methods for data preprocessing, data exploration, regression, and sample classification/discrimination using examples from NMR foodomics. The main advantages are more parsimonious models, improved interpretability and, in many cases, improved performance.

Chemometrics in Electroanalysis

Chemometrics in Electroanalysis
Author: José Manuel Díaz-Cruz,Miquel Esteban,Cristina Ariño
Publsiher: Springer
Total Pages: 202
Release: 2019-08-05
ISBN: 3030213846
Category: Science
Language: EN, FR, DE, ES & NL

Chemometrics in Electroanalysis Book Excerpt:

This monograph covers the most relevant applications of chemometrics in electrochemistry with special emphasis on electroanalytical chemistry. It reviews the use of chemometric methods for exploratory data analysis, experimental design and optimization, calibration, model identification, and experts systems. The book also provides a brief introduction to the fundamentals of the main chemometric methods and offers examples of data treatment for calibration and model identification. Due to the comprehensive coverage, this book offers an invaluable resource for graduate and postgraduate students, as well as for researchers in academic and industrial laboratories working in the area of electroanalysis and electrochemical sensors.

Chemometrics in Food Chemistry

Chemometrics in Food Chemistry
Author: Frank Westad,Marta Bevilacqua,Federico Marini
Publsiher: Elsevier Inc. Chapters
Total Pages: 512
Release: 2013-06-08
ISBN: 0128083255
Category: Science
Language: EN, FR, DE, ES & NL

Chemometrics in Food Chemistry Book Excerpt:

In this chapter, a survey of the theory behind the main chemometric methods used for multivariate calibration is presented. Ordinary least squares, multiple linear regression, principal component regression, partial least squares regression and principal covariate regression are discussed in detail. Tools for model diagnostics and model interpretation are presented, together with strategies for variable selection.

Hyperspectral Imaging

Hyperspectral Imaging
Author: Anonim
Publsiher: Elsevier
Total Pages: 800
Release: 2019-09-29
ISBN: 0444639780
Category: Science
Language: EN, FR, DE, ES & NL

Hyperspectral Imaging Book Excerpt:

Hyperspectral Imaging, Volume 32, presents a comprehensive exploration of the different analytical methodologies applied on hyperspectral imaging and a state-of-the-art analysis of applications in different scientific and industrial areas. This book presents, for the first time, a comprehensive collection of the main multivariate algorithms used for hyperspectral image analysis in different fields of application. The benefits, drawbacks and suitability of each are fully discussed, along with examples of their application. Users will find state-of-the art information on the machinery for hyperspectral image acquisition, along with a critical assessment of the usage of hyperspectral imaging in diverse scientific fields. Provides a comprehensive roadmap of hyperspectral image analysis, with benefits and considerations for each method discussed Covers state-of-the-art applications in different scientific fields Discusses the implementation of hyperspectral devices in different environments