R. Belcher – författare

Organic Functional Group Analysis deals with versatile and reliable chemical methods for the analysis of most of the more common organic functional groups. The minimum number of methods required to solve the maximum number of problems is presented. The scope and known limitations of each method are discussed so that analytical chemists can decide whether the method under consideration can be applied to their particular problem. The methods are either titrimetric or colorimetric in nature. This volume is comprised of 11 chapters and begins with an overview of the analytical methods used for organic functional groups, including both titrimetric and colorimetric methods. The discussion then turns to the properties of acids and bases; selection of the best acid-base method for a particular purpose; and some of the more useful acid-base methods. Subsequent chapters explore methods for the determination of nitrogen compounds such as amines and amides; carbonyl compounds and derivatives; hydroxyl compounds such as tertiary alcohols; unsaturated compounds; 1,2-epoxy compounds; esters and peroxides; carboxylic acid anhydrides; and sulfur compounds. This book is intended for analytical chemists.

The Analysis of Explosives surveys the principles of the various analytical methods, describes how these methods are used for the analysis of explosives, and reviews the major analytical work carried out in this field. Organized into 15 chapters, this book begins with the classification of explosives. Subsequent chapters discuss the different methods for the analysis of explosives. The detection and identification of explosive residues and hidden explosives are also explained. This monograph will be useful as a reference book for chemists in analytical and forensic laboratories, as well as a textbook for graduate students in analytical chemistry and forensic sciences.

Analysis of Organoaluminum and Organozinc Compounds, Volume 31 presents information pertinent to the organo compound of aluminum and zinc. This book discusses the growing interest in organoaluminum compounds as intermediates in the manufacture of organic chemicals. Comprised of nine chapters, this volume begins with an overview of the methods for the determination of different functional groups and elements in organoaluminum compounds, viz. alkyle, alkozide, hydride, aluminum, halogens, amino and thio alkoxide groups. This text then explains the different solution methods of analysis of organoaluminum compounds, including various titrimetric procedures. Other chapters consider an iodometric titration method for analyzing organoaluminum compounds, which is particularly useful for rapid analysis of diluted samples. This book discusses as well the extensive work on the analysis of organoaluminum compounds by thermometric titrimetry with suitable reagents. The final chapter deals with the detailed procedures for carrying out different analyses. This book is a valuable resource for students of analytical chemistry.

Analytical Chemistry of the Actinide Elements presents a number of pertinent techniques for the analysis of actinides and provides sufficient information to guide the analyst in modifying procedures to meet special situations. The book begins with an introductory chapter on the discovery of elements 89-103, their oxidation state, and their electronic configuration. Information is provided on the safe handling of radioactive materials (all actinides are radioactive). The use of nuclear techniques in determining trace concentrations of actinides has led to the inclusion of chapters dealing with nuclear instrumentation and nuclear methods. Topics discussed include the preliminary treatment of samples; separations; emission spectroscopy and mass spectrometry; electrochemical, x-ray, and fluorimetric methods; isotopic analysis of uranium and some other actinides; and non-instrumental methods. Thus, the analytical chemist, if he is not already familiar with these techniques, is indoctrinated in a basic amount of nucleonics, to aid him in analyzing unusual materials with unusual techniques.

The Determination of Epoxide Groups describes the advantages and limitations of the methods for determination of 1,2-epoxide groups of various kinds. Chapter 1 examines the chemical reactivities of different epoxides under various conditions, which is of fundamental importance in the choice of the analytical method to be used. Chapter 2 explores most of the analytical work on epoxides involving ring-opening with HCl or HBr. Chapter 3 deals with the alternative techniques involving quantitative rearrangement of epoxides, or ring-opening under non-acidic conditions. This chapter also contains descriptions of various miscellaneous analytical techniques, including very sensitive methods, as well as the use of infrared spectroscopic techniques for analysis of epoxides and the study of their reactions, particularly the cure of epoxy resins. Chapter 4 summarizes the advantages and limitations of the various methods, along with the main factors affecting choice of experimental. This book is of great value to analytical and organic chemists, researchers, and students.

Enzymatic Methods of Analysis attempts to cover all the aspects of modern enzymatic analysis. Enzymes possess a great potential usefulness in analytical chemistry. The specificity of enzymes can solve the primary problem of most analytical chemists—the analysis of one substance in the presence of many similar compounds that interfere in the analysis. The book begins with two introductory chapters devoted to general considerations of enzymes as reagents and methods of analysis of enzymatic reactions. The next four chapters deal with methods for the assay of specific enzymes, and substrate, activator, and inhibitor analysis using enzymes. In the last two chapters the immobilization of enzymes and the automation of enzymatic reactions are discussed. In addition, a listing of all commercially available enzymes is given in an appendix. It is hoped that the information presented will prove interesting and stimulating to all individuals engaged in research and development.

Monographs in Organic Functional Group Analysis, Volume 3: Determination of Carboxylic Functional Groups focuses on the quantitative determination of acid chlorides, esters, carboxylic acids, anhydrides, lactones, and amides. The monograph first takes a look at the determination of carboxylic acids. Countercurrent and electrophoretic separation of organic acids; polarography of organic acids; acid-base equilibrium in non-aqueous media; and titrimetric determination of acids are discussed. The book also examines the determination of acid anhydrides, chlorides, and esters. The characteristics and composition of acid chlorides and anhydrides, as well as the saponification and spectroscopic methods used in the identification of esters, are presented. The book also evaluates the methods and use of Grignard''s reagent in the determination of amides. The text also presents an analysis of binary and ternary mixtures. Mixtures of acids and acid chlorides, differentiation of acids, mixtures of acids and esters, and mixtures of acids and amides are discussed. The monograph is a vital reference for readers interested in the quantitative determination of acid chlorides, esters, carboxylic acids, and other related compounds.

Organic Polarographic Analysis deals with the applications of polarography in the analysis of organic compounds. The principles, techniques, and apparatus of organic polarography are discussed, and some selected examples of the applications of organic polarography in various fields of applied chemistry are presented. The direct methods in which the sample is simply dissolved in a suitable supporting electrolyte are also considered. This book consists of 11 chapters and opens with an overview of the basic principles of the polarographic method of analysis, as well as the different types of polarographic limiting currents and of electrode processes. The reader is then introduced to the instruments used in polarography, including the polarograph, dropping and reference electrodes, and electrolysis vessels. Experimental techniques in organic polarography are also described, along with some of its practical applications in fields such as pharmacy, medicine, and biochemistry. Subsequent chapters explore polarographic methods used in the analysis of organic substances, including direct and indirect methods of analysis; separation techniques; and the use of polarography in organic synthesis and isolation of natural products. This monograph is written primarily for organic and analytical chemists.

Photoelectron Spectroscopy provides an introduction to the principles of photoelectron spectroscopy, including its applications in structural and analytical chemistry. It deals with both X-ray and UV-photoelectron spectroscopy. This book begins with the basic principles of electron spectroscopy and describes the UV photoelectron spectrometers and X-ray photoelectron spectrometers. It then lists several factors influencing the appearance of the photoelectron spectra. This book concludes by describing other forms of electron spectroscopy and photoelectron techniques. Students and chemists who are looking for a readable introduction to photoelectron spectroscopy will find this book useful.

Trace Analysis of Semiconductor Materials is a guidebook concerned with procedures of ultra-trace analysis. This book discusses six distinct techniques of trace analysis. These techniques are the most common and can be applied to various problems compared to other methods. Each of the four chapters basically includes an introduction to the principles and general statements. The theoretical basis for the technique involved is then briefly discussed. Practical applications of the techniques and the different instrumentations are explained. Then, the applications to trace analysis as pertaining to semiconductor materials are discussed. Chapter 1 discusses radiochemical practice, the analysis of semiconductor materials, separation techniques, several qualitative radiochemical schemes, radiochemical purification procedures, and several earlier reported studies. Chapter 2 covers emission spectroscopy, including its potential for future applications. Discussions in Chapter 3 explain the benefits of each of the four mass spectrometric methods, namely, the isotope dilution method, complete thermal vaporization, vacuum spark technique, and the ion bombardment method. Chapter 4 focuses on the absorption, fluorescence, and polarographic methods used in general trace analysis, including examples of semiconductor material applications and other problems that result when certain impurities are introduced into the test sample. This monograph will be useful for researchers in ultra-trace analysis, nuclear physics, and analytical chemistry.

The Determination of Hydrazino-Hydrazide Groups discusses the analytical methods for the analysis of hydrazino, hydrazide, hydrazine, substituted hydrazines, and hydrazine derivatives. It also shows the usefulness of hydrazines and its derivatives as analytical reagents. The book presents a detailed examination of a variety of analytical methods used in determining hydrazines and hydrazides derivatives. These methods include oxidation, colorimetry and spectrophotometry, coulometry, polarography, and gasometric and acid-based methods. The book concludes by discussing the use of hydrazines as analytical reagents. The text is invaluable for everyone interested in hydrazides and hydrazines and their applications.

International Series of Monographs in Analytical Chemistry, Volume 37: Microanalysis by the Ring-Oven Technique, Second Edition focuses on the ring-oven method. The book first offers information on the characteristics and uses of ring-oven, gas generator, pipette, glass holder, and other accessories. The text focuses on qualitative analysis, including the systematic schemes for the analysis of metal ions; separations and reactions for acid radicals; and reactions for metal ions. The selection discusses spot colorimetry with the ring-oven method. Concerns include determination of iron and other metals, amplification reactions, removal of interfering ions, and determination of anions. The radiochemical applications of ring-oven method, including determination of inactive substances, identification of radionucleides, and separation procedures, are explained. The text also discusses the combination of ring-oven method with electrography, thin-layer chromatography, and solvent extraction. The book is a valuable source of information for readers interested in the ring-oven method.

International Series of Monographs on Analytical Chemistry, Volume 13: Controlled-Potential Analysis provides information pertinent to controlled-potential analysis involving the measurement of the quantity of electricity passed in the course of electrolysis. This book discusses the practical problems to be regarded in controlled-potential techniques, including the accurate maintenance of the desired potential. Organized into four chapters, this volume begins with an overview of the controlled-potential electrolysis methods that are particularly valuable to problems of chemical analysis as they provide a measure of concentration and a qualitative identification from the value and magnitude of the potential. This text then examines the classification of coulometric methods according to whether the total applied voltage of the working electrode is being controlled during electrolysis. Other chapters consider the basic function of a potentiostat to maintain the potential of a given electrode at a constant value. Chemists and analytical chemists will find this book extremely useful.

Analytical Applications of 1,10-Phenanthroline and Related Compounds, Volume 32 presents the significance of 1,10-phenanthroline in chemical analysis. This book discusses the varied other uses for 1,10-phenanthroline or of the distinctive advantages afforded by certain related compounds. Organized into eight chapters, this volume begins with an overview of the planar structure of 1,10-phenanthroline. This text then examines the relative inertness of phenanthroline towards chemical reaction other than chelation or salt-formation, which is an essential asset in its analytical applications. Other chapters consider the coordination chemistry of phenanthroline and bipyridine in detail. This book discusses as well the metal ions chelated, the features of the chelates, and the influence of substituent groups or other changes in the ligands on the properties of the chelates. The final chapter examines the scientific and commercial uses for 1,10-phenanthroline and related compounds, which have increased in number and importance. This book is a valuable resource for analytical chemists.

Oscillometry and Conductometry deals with oscillometry and conductometry and covers topics ranging from the conductivity and dielectric constant of a solution and their determination, to instruments used in carrying out conductometric and oscillometric measurements. Acid-base titrations and titrations based on precipitation, complex formation, and redox reactions are also discussed. A number of applications of conductometry and oscillometry are considered. This volume is comprised of 18 chapters and begins with an overview of the fundamentals of electrical conductivity, its theoretical interpretation, and how it is affected by temperature. The relation between ionic interaction and conductivity of solutions is also described, with emphasis on the Wien effect and the Debye effect. The theoretical fundamentals of the determination of conductivity using direct and alternating currents are then outlined. Subsequent chapters explore the principles and the devices used in determining dielectric constants; conductometric and oscillometric instruments; the titration of acids and bases; and acid-base titrations in aqueous and non-aqueous media. The final section is devoted to applications of conductometry and oscillometry, including kinetic studies and chromatographic analysis. This monograph will be of interest to analytical chemists.

Principles of Field Ionization and Field Desorption Mass Spectrometry delves deeper into field ionization and field desorption. The book covers the five main subareas of field ionization and field desorption mass spectrometry that has grown in importance. Coverage includes the theory of field ionization and field desorption; field ionization and field desorption techniques and sources; high field surface chemistry; kinetics and mechanisms of decompostion of field ions in the gas phase; and qualitative and mixture analysis with field ionization and field desorption mass spectrometry. The text is recommended for students, experts, and researchers in chemistry, especially those who wish to learn more or have an in-depth study about field ionization and field desorption, its principles, and its applications in chemistry.

Nuclear Techniques in Analytical Chemistry discusses highly sensitive nuclear techniques that determine the micro- and macro-amounts or trace elements of materials. With the increasingly frequent demand for the chemical determination of trace amounts of elements in materials, the analytical chemist had to search for more sensitive methods of analysis. This book accustoms analytical chemists with nuclear techniques that possess the desired sensitivity and applicability at trace levels. The topics covered include safe handling of radioactivity; measurement of natural radioactivity; and neutron activation analysis. The positive ion and gamma ray activation analysis; isotope dilution and tracer investigations of analytical techniques; and geo- and cosmochronology and miscellaneous nuclear techniques are also elaborated in this text. This publication is intended for analytical chemists, but is also valuable to students intending to acquire knowledge on nuclear techniques and analytical methods in chemistry.

History of Analytical Chemistry is a systematic account of the historical development of analytical chemistry spanning about 4,000 years. Many scientists who have helped to develop the methods of analytical chemistry are mentioned. Various methods of analysis are discussed, including electrogravimetry, optical methods, electrometric analysis, radiochemical analysis, and chromatography. This volume is comprised of 14 chapters and begins with an overview of analytical chemistry in ancient Greece, the origin of chemistry, and the earliest knowledge of analysis. The next chapter focuses on analytical chemistry during the Middle Ages, with emphasis on alchemy. Analytical knowledge during the period of iatrochemistry and the development of analytical chemistry during the phlogiston period are then examined. Subsequent chapters deal with the development of the fundamental laws of chemistry, including the principle of the indestructibility of matter; analytical chemistry during the period of Berzelius; and developments in qualitative and gravimetric analysis. Elementary organic analysis is also considered, along with the development of the theory of analytical chemistry. This book will be helpful to chemists as well as students and researchers in the field of analytical chemistry.

Thermometric Titrimetry covers the significant progress in the application of thermometric titrimetry to routine analysis and as a research tool in the investigations of the basic phenomena associated with chemical reactions. This book is composed of 10 chapters and starts with a brief presentation of the basic principles of the technique. The succeeding chapters deal with the apparatus and several reactions involved in thermometric titrimetry, including neutralization, oxidation-reduction, and precipitation. A chapter focuses on the advantages of the technique for the determination of important commercial chemical, such as water and various chemical systems. The remaining chapters examine the use of some solvents as indicators, the industrial application of thermometric titrimetry, and an investigation of complex formation. This book will be of great value to analytical and laboratory chemists.

Analytical Applications of EDTA and Related Compounds examines the analytical applications of ethylenediaminetetra-acetic acid (EDTA) and related compounds. This book also considers the "passive role of these substances, that is, their screening (masking) properties, which greatly improve the selectivity of the reactions in common use. This text consists of six chapters organized into two sections. The first part deals with the uses of EDTA and its derivatives in some fields of chemical analysis. After providing an overview of the history behind the development of EDTA as an analytical reagent, this book discusses to the nature of equilibria of complexes and the methods used in their investigation. The next chapter is dedicated to the reactions of "classical gravimetric analysis, including the precipitation reactions by means of organic reagents. The chapter on colorimetry includes a section on "colored complexing agents, which can be used also in colorimetric determinations of some elements. This text concludes by evaluating the use of EDTA as a masking agent in colorimetry. This book will be of interest to students and practitioners working in analytical chemistry and related disciplines, including polarography, chromatography, electrophoresis, flame photometry, and qualitative analysis.

Field Ionization Mass Spectrometry focuses on developments in field ionization (FI) mass spectrometry and describes its applications in physical chemistry, with emphasis on mass spectrometric problems. Physico-chemical problems as well as problems of chemical analysis are considered based on issues such as the probability of field ionization; field dissociation and charge distribution; kinetics of ion decomposition in high fields; negative ions; surface diffusion; activation of FI emitters; and elucidation of the structures of organic compounds. This book is comprised of four chapters and begins with a short review on some of the most important directions of research in FI mass spectrometry. Two main fields of research are discussed: physico-chemical investigations and quantitative analysis or structural determination of organic substances. The next chapter is devoted to focusing and non-focusing sources of FI and covers topics such as methods for production of FI tips and thin wires, together with the use of tips and carbon filaments as FI emitters. The last two chapters focus on the application of the FI mass spectrometer to physico-chemical problems and to quantitative analysis of homologous series of organic substances such as alkanes, alkenes, alkynes, amines, and alcohols. This monograph is intended primarily for chemists and mass spectrometrists.

Analytical Chemistry, Second Edition, Volume 6: Atomic-Absorption Spectrophotometry focuses on the use of atomic absorption spectrophotometry as an analytical technique. This book discusses the developments in the analytical fields of atomic-absorption spectrophotometry. Organized into seven chapters, this edition starts with an overview of the fundamental principles underlying atomic-absorption spectra. This book then describes the use of high-temperature fuel-rich flames that allow the determination of some elements that were not previously capable of being determined by atomic-absorption spectrophotometry. Other chapters explore the advantages of improved instrumentation and consider the atomic-absorption procedures that have been applied to a wide variety of samples from agricultural and biological materials. This book discusses as well the determination of specified elements by a direct examination of the sample solution. The final chapter provides a list of instruments that are commercially available, with emphasis on their characteristics. This book is a valuable resource for analysts, physicists, and chemists.

Monographs in Organic Functional Group Analysis, Volume 4: The Determination of Organic Peroxides focuses on the analytical chemistry of organic peroxides. The monograph first offers information on the compositions, properties, and reactions of lipid peroxides, polymers, and petrochemicals. The text then reviews the iodometric methods, including choice of solvents, reaction conditions, and titration with thiosulfate. The ferrous ion methods are also discussed. Considerations include choice of reagents and solvents and titration with titanous, dichromate, and mercurous ions. The book also focuses on titrimetric methods, including arsenious, stannous, and titanous methods, titration with anions, and sulfides and mercaptans. Numerical representations are provided. The text puts emphasis on colorimetric and polarographic methods. Polarographic techniques for peroxides; nature and concentration of peroxides; leuco base of methylene blue; and ferrous ions are described. The book also discusses paper, thin-layer, and gas chromatography. The monograph is an important guide for readers interested in the analytical chemistry of organic peroxides.

International Series of Monographs in Analytical Chemistry, Volume 54: Organic Reagents in Metal Analysis focuses on the factors determining the analytical selectivity of complexation reactions. This book consists of three chapters. Chapter 1 deals with the effects of stability and electronic structure of complexes and formation of mixed ligand complexes on analytical selectivity. The analytical procedures for the accomplishment of many metal analytical tasks are reviewed in Chapter 2. The last chapter provides a tabulated data that facilitates experimental work in the field of metal analysis. This volume is useful to practical analysts and researchers engaged with developments in the field of analytical chemistry and routine metal analyses.

Analytical Chemistry of Organic Halogen Compounds presents the procedures applied in the analysis of organic halogen compounds. This book is composed of eight chapters that discuss the methods involved in the production and application of organic halogen compounds and in overcoming contamination problems caused by these compounds. After briefly dealing with the preparation, characteristics, and reactions of organic halogen compounds, this book goes on discussing the fundamental concepts of methods for the detection of halogens in organic compounds, namely, chlorine, bromine, iodine, and fluorine. The following chapter describes the characteristic features, advantages, and disadvantages of ultramicro and submicro chemical methods. A chapter also examines the qualitative and quantitative studies of organic halogen compounds based on the thermal and chemical stability of these compounds. The concluding chapters discuss the interference or interfering effects of halogens and their elimination in the determination of other elements. A list of physical constants of organic halogen compounds of general pharmaceutical and industrial significance is provided. This book is an ideal source for analytical chemists and other workers who are interested in the theoretical bases of the methods.

Stationary Phases in Gas Chromatography is a four-chapter book that begins with a description of chromatographic column, including its retention parameters; mobile and stationary phases; optimization of its process; and types of column in gas chromatography. Subsequent chapter focuses on the retention data and thermodynamic variables in the technique. The last two chapters report the different types of stationary phases in gas chromatography, as well as their selectivity.

Periodate Oxidation of Diol and Other Functional Groups: Analytical and Structural Applications deals with the chemistry of organic periodate oxidations with special reference to the study of carbohydrates, along with their analytical and structural applications. This book explores the mechanistic aspects of the periodate reaction; its historical development; the nature of the so-called anomalous reactions; and some of the synthetic uses of periodate oxidation. This book is comprised of seven chapters and opens with a historical background on periodate oxidation, followed by a discussion on the preparation and properties of periodates. The reader is then introduced to the mechanism of periodate oxidation, with particular reference to 1,2-diols and 1,2-hydroxycarbonyl compounds as well as 1,2-diketones, 1,2-aminoalcohols, and active methylene groups. The remaining chapters consider the structure of carbohydrates and related materials; anomalous periodate oxidations; the analytical aspects and applications of periodate oxidation; and a number of tested and generally well-tried analytical procedures such as the Fleury-Lange method, Malaprade method, ion exchange, and spectrophotometric and polarographic techniques. This monograph will be a useful resource for organic chemists and advanced undergraduate students of chemistry.

International Series of Monographs in Analytical Chemistry, Volume 49: Isotope Dilution Analysis focuses on the method of isotope dilution analysis (IDA). The book first discusses the principles, types, and theory of IDA. Classification of the methods of IDA; precision, accuracy, and sensitivity of IDA; and types of IDA are described. The text also examines experimental techniques, separation, and mass determination. The separation of components, reagents and tracers, and amount of substance separated are underscored. The text takes a look at the inorganic applications of IDA, including determination of elements and selected procedures. The text examines the applications of IDA in organic chemistry and biochemistry, particularly in the analysis of alcohols and ethers, steroids, penicillin, proteins and amino acids, and insecticides. The book discusses IDA with stable isotopes. Methods for the determination of isotopic composition, fundamentals and technique, and practical applications are underscored. The text also emphasizes the special applications of isotope dilution. Determination of the content of isotopic carriers in radioactive preparations; determination of the coefficient of self-absorption and specific activity; and determination of radioactive contaminants are discussed. The text is a vital reference for readers interested in isotope dilution analysis.

Fluorescence and Phosphorescence Spectroscopy: Physicochemical Principles and Practice deals with the physicochemical principles and applications of fluorescence and phosphorescence spectroscopy in experimental biology and chemistry. Topics covered include the absorption of light by molecules; instrumentation for the measurement of fluorescence and phosphorescence; solvent and acidity effects on electronic spectra; and polarization of fluorescence and phosphorescence. Comprised of four chapters, this book begins with a discussion on photophysical processes in isolated molecules and molecules in solution, paying particular attention to thermal equilibration of electronically excited molecules, phototautomerism, and coordination by metal ions. The next chapter describes the instrumentation for measuring fluorescence and phosphorescence, which consists essentially of a light source to electronically excite the sample; a monochromator to separate the light of desired energy from the source; a sample compartment; a second monochromator to isolate the sample''s fluorescence energy from the excitation energy; a photodetector to translate the fluorescent light into an electrical signal; and a readout system such as a galvanometer or a recorder, coupled with an amplifier to determine the intensity of fluorescent light that is emitted. The final chapter is devoted to various applications of fluorescence and phosphorescence spectroscopy, including the analysis of organic and inorganic compounds. This monograph is written primarily for analytical chemists and biological scientists.