
Elemental Analysis in Geochemistry
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Elemental Analysis in Geochemistry: A. Major Elements provides an introduction to basic classical and modern instrumental ""macro"" methods for geochemical research. The intention is to acquaint the beginning analyst or geochemist with the minimum of analytical methods required to satisfactorily perform a complex silicate or similar analysis. By combining classical and modern instrumental methods in one book, strong emphasis is put on the importance of the analyst's ability to grasp the general structure and relation of some of the most frequently used analytical techniques. The book begins with basic concepts such as the preparation and decomposition of samples; statistical evaluation; and methods of separation and analysis. It outlines the classical qualitative separation scheme, which is very useful in understanding the analytical problems of complex mixtures, especially when hydrogen sulfide group metals are present. It discusses analytical techniques such as the detection and quantitative gravimetric analysis of silicon; volumetric or titrimetric methods; emission photometric analysis; atomic absorption spectroscopy; nondestructive instrumental methods; methods in X-ray spectrochemistry; and developments in neutron activation analysis.
Table of Contents
Preface
Chapter 1. Introduction
Chapter 2. Preparation and Decomposition of Samples
Preparation of samples
Common types of samples and methods of sampling
Sample size
Diminution of samples
Contamination of samples during preparation
Storage and care of samples
Decomposition of samples
Undecomposed sample powders and their use
Solution techniques
Fluxing techniques
Special fluxing techniques
Contamination of samples during decomposition
Storage of decomposed samples
Chapter 3. Statistical Evaluation and Sampling
Chapter 4. Factors Influencing the Selection of Methods of Separation and Analysis
Separation of elements
Gravimetric "absolute" methods
Instrumental nondestructive methods
Volumetric methods
Colorimetric methods
Flame-photometric methods
Atomic absorption
Emission spectroscopy
Chapter 5. Some Methods of Extraction and Ion Exchange Separation
Separation by extraction
Separation methods by ion exchange resins
Procedure to determine the capacity of a resin
Ion exchange separation method for systematic analysis of silicate rocks by Shibata
Chapter 6. The Classical Qualitative Separation Scheme
Chapter 7. Classical Gravimetric and Other Methods
Silicon
Gravimetric determination as silica, SiO2
Aluminum
Gravimetric method
Determination of aluminum by the oxine method
Iron
Ferric or total iron, volumetric procedure
Ferrous iron, volumetric procedure
Calcium
Procedure
Magnesium
Gravimetric procedure
EDTA titration methods for calcium and magnesium
Sodium and potassium
Decomposition of sample
J. Lawrence Smith method
Potassium Perchlorate method
Potassium tetraphenylboron method
Sodium as uranyl zinc acetate
Titanium
Titanium as peroxide
Manganese
Separation and determination of manganese
Colorimetric determination of manganese
Phosphorus
Gravimetric determination
Ammonium phosphomolybdate method
Precipitation of magnesium ammonium phosphate hexahydrate
Carbon
Simplified method
Combination of classical acid decomposition and combustion methods
Hydrogen and water
Total water
The Penfield method
Fluorine
Decomposition and preparation of fluorine-bearing samples
Sulfur
Gravimetric determination as barium sulfate
Decomposition of sulfide samples by aqua regia and bromine
The zinc oxide-sodium carbonate fusion
Barium
Procedure
Chlorine
Sample decomposition
Gravimetric method for chlorine as silver chloride, AgCl
Zirconium
Decomposition of samples
Silica determination in zirconium-bearing materials
Zirconium as phosphate
Zirconium as mandelate
Chromium
Decomposition of samples
Boron
Decomposition of the sample
Titrimetric procedure
Gravimetric method
Lead
Decomposition of samples
Titrimetric method
Titration of the lead Chromate by ferrous ammonium sulfate
Nickel
Decomposition of samples
Copper
Electro-gravimetric procedure
Zinc
Gravimetric procedure for zinc in silicates
Titrimetric methods
Chapter 8. Classical Volumetric Methods
Normality and molarity
Procedure for total iron
Acid-base titrations
The silver reductor
The Jones reductor
Chapter 9. Emission Flame Spectrophotometry
Introduction
Instrumentation
Preparation of sample
Removal of interfering anions
Determination of sodium, potassium, calcium (and magnesium)
Beer's law
Chapter 10. Atomic Absorption Spectroscopy
Introduction
Instrumentation and methods
Methods
Determination of magnesium
Standards for atomic absorption
Chapter 11. Instrumental Nondestructive Analysis
Introduction
Electromagnetic radiation
Atom as a source of electromagnetic radiation
Separation, detection, and measurement of the electromagnetic radiation
Scintillation counters
Semiconductor detectors
Chapter 12. X-ray Emission Analysis
Introduction
Precision in X-ray emission analysis
Methods in X-ray spectrochemistry
Procedure for pelletizing
Chapter 13. Fast-Neutron Activation Analysis
Introduction
Fast-neutron generators
Laboratories shielded for fast-neutron activation analysis
Determination of oxygen by fast-neutron activation
Procedure
Determination of silicon by fast-neutron activation
Procedure
Appendix 1. Gravimetric Factors
Appendix 2. Analytical Quality Reagents for Stock Solutions in Atomic-Absorption and Emission-Flame Analysis
Bibliography
Index
Product details
- No. of pages: 388
- Language: English
- Copyright: © Elsevier 1969
- Published: January 1, 1969
- Imprint: Elsevier
- eBook ISBN: 9780444601513
About the Author
Alexis Volborth
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