H. Freiser – författare

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.

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.

Compendium of Analytical Nomenclature: Definitive Rules 1977 focuses on the recommended nomenclature and symbols to be used in various disciplines of analytical chemistry. The book first offers information on recommendations for the presentation of the results of chemical analysis; recommendations for terminology to be employed with precision balances; and recommendations on nomenclature for contamination phenomena in precipitation from aqueous solution. The text also takes a look at recommended nomenclature for automatic analysis and recommendations for nomenclature of thermal analysis and mass spectrometry, as well as recommended nomenclature for titrimetric analysis. The publication reviews the practical measurements of pH in amphiprotic and mixed solvents. Topics include operational pH scale; selection of a pH unit for amphiprotic solvents; and interpretation of the measured pH. The text also considers the recommendations on nomenclature and presentation of data in gas chromatography and recommendations on nomenclature for chromatography. The book is a valuable source of data for readers wanting to study analytical nomenclature.

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.

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.

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.

Equilibrium Constants of Liquid-Liquid Distribution Reactions, Part IV: Chelating Extractants is a compilation of liquid-liquid distribution equilibrium constants, with emphasis on extractants that form chelates. This tabulation includes all data published up to the end of 1972 for the major chelating extractants, and the given equilibrium parameters are supplemented by calculations (or recalculations) from experimental results. This monograph consists of 12 chapters and characterizes the homogeneous equilibria involving the acid dissociation of the extractant in the aqueous phase and adduct or mixed ligand complex formation in the organic phase. The information given for each system includes the chemical reactions, the equilibrium constant, the temperature, and the composition of the aqueous and organic phases. Compounds covered include dialkyldithiocarbamic acids (such as diethyldithiocarbamic acid and dibutyldithioarbamic acid), tropolones (beta-isopropyltropolone and gamma-isopropyltropolone), N-acylhydroxylamines, N-nitroso-N-arylhydroxylamines (cupferrons), alpha-dioximes, diarylthiocarbazones (dithizones), 8-hydroxyquinolines, 8-mercaptoquinolines, o-dimercaptobenzenes (toluene-3,4-dithiol), beta-diketones (such as acetylacetone and hexafluoroacetylacetone), 4-acylpyrazol-5-ones, and o-nitrosophenols (1-nitroso-2-naphthol and 2-nitroso-1-naphthol). This book will be of interest to 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.

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.

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.

Analytical Chemistry, Volume 38: Ion Exchange in Analytical Chemistry provides a broad survey of the important role that ion exchange can and should play in chemical analysis. This book focuses on the plate-equilibrium theory of chromatography, which is less difficult theoretically than the mass-transfer theory. Organized into 11 chapters, this volume begins with an overview of the earliest recorded application of ion exchange. This text then examines how high temperature affects ion-exchange resins. Other chapters consider the exchange of ions between a solid ion-exchanging material and a solution, which is a typically reversible reaction. This book describes as well the relatively simple separations and other applications of ion exchange to analytical chemistry. The final chapter deals with the interesting nature of the metal complexes formed within the exchanger and describe the use of ion-exchange distribution studies to determine the stability and nature of complexes existing in the solution. This book is a valuable resource for analytical chemists.

International Series of Monographs in Analytical Chemistry, Volume 50: N-Benzoylphenylhydroxylamine and its Analogues covers the analytical applications of the organic hydroxylamine derivatives. This book is composed of seven chapters, and starts with a brief historical account of the uses of organic reagents in inorganic analysis. The next chapter discusses some basic physico-chemical factors associated with the constitution of a good reagent, including some fundamental ideas about the type and nature of the principal reactive and other groupings in the ligand. A chapter deals with the inclusion of the methods of preparation and properties of N-benzoylphenylhydroxylamine (BPHA) and its analogues and derivatives, and their reactions with different metal ions. These topics are followed by descriptions of the various types of analytical applications of BPHA and its analogues, such as gravimetry, spectrophotometry, and solvent extraction, as well as their applications in titrimetry and paper chromatography. This book is of value to analytical and organic chemists.

International Series of Monographs in Analytical Chemistry, Volume 44: The Determination of Impurities in Nuclear Grade Sodium Metal (and Related Sodium Compounds) provides analytical chemical procedures for the determination of impurities in nuclear grade sodium metal. This book is composed of 25 chapters, and begins with a presentation of the methods for dissolving, bulk separation, sampling, and handling of sodium metal. The rest of the book describes the procedures for impurity determination in nuclear grade sodium metals, including aluminum, bismuth, boron, cadmium, calcium, magnesium, carbon, cesium, and chloride. Other impurities considered include chromium, cobalt, copper, hydrogen, iodine, iron, lead, lithium, manganese, nickel, oxide, oxygen, and phosphorus. The last chapters examine the procedures for determination of potassium, silicon, sulfur, and uranium impurities. This book is of value to analytical and inorganic chemists.

Applied Gamma-Ray Spectrometry covers real life application of the gamma-ray and the devices used in their experimental studies. This book is organized into 9 chapters, and starts with discussions of the various decay processes, the possible interaction mechanisms of gamma radiation with matter, and the intrinsic and extrinsic variables, which affect the observed gamma-ray and X-ray spectra. The subsequent chapters deal with the properties and fabrication of scintillation detectors, semiconductor detectors, and proportional gas counters. These chapters present some of the most widely utilized applications of these detectors, with a particular emphasis to the activation analysis. These topics are followed by reviews of the description of basic equipment, such as amplifiers, analyzers, special spectrometer arrangements, and detector shielding. Other chapters describe energy and time resolution and quantitative calibration. The quantitative and qualitative interpretation of the spectra is also explained, along with the calibration of the detectors. The last chapter considers the analytical applications of gamma-ray and X-ray spectrometry in tracer studies, activation analysis, fission product studies, and X-ray fluorescence analysis. This book will be of value to analytical chemists and analytical chemistry researchers.

International Series of Monographs in Analytical Chemistry, Volume 47: Analytical Chemistry of Molybdenum and Tungsten describes the chemical and instrumental methods of analysis of molybdenum and tungsten. This book is composed of 15 chapters that particularly consider detailed methods for determining these metals in typical samples and their alloys by both classical and modern techniques. The opening chapters discuss the history, occurrence, physico-chemical properties, and applications of molybdenum and tungsten. The succeeding chapters deal with the metals'' sampling, decomposition, separation, and qualitative detection. Considerable chapters are devoted to various chemical and instrumental methods for their analysis, including gravimetry, titrimetry, colorimetry, polarography, amperometry, coulometry, emission and atomic absorption spectroscopy, X-ray spectrophotometry, mass spectrometry, and radiochemical methods. The concluding chapter examines the determination of impurities and alloying elements. This book will prove useful to analytical and inorganic chemists, as well as analytical and inorganic chemistry students.