1.

Record Nr.

UNINA9910144115003321

Autore

Brennan Martin <1943->

Titolo

A practical approach to quantitative metal analysis of organic matrices / / Martin C. Brennan

Pubbl/distr/stampa

West Sussex, England : , : Wiley, , 2008

©2008

ISBN

1-281-94021-6

9786611940218

0-470-99828-8

0-470-99829-6

Descrizione fisica

1 online resource (278 p.)

Disciplina

543.52

543.6

Soggetti

Atomic emission spectroscopy

Metals - Analysis

Chemistry, Organic

Electronic books.

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Description based upon print version of record.

Nota di bibliografia

Includes bibliographical references and index.

Nota di contenuto

A Practical Approach to Quantitative Metal Analysis of Organic Matrices; Contents; Preface; Biography; Acknowledgements; 1 A Practical Approach to Quantitative Metal Analysis of Organic Matrices Using ICP-OES; 1.1 Introduction and Basic Overview; 1.2 Schematic Representation of the Energies Generated by Atomic Spectroscopic Methods; 1.3 Excitation Energy (Quantum Theory and Atomic Spectra); 1.4 Ionisation Energy and Number of Excited Atoms; 1.5 Width of Atomic Lines; 1.5.1 Natural Broadening; 1.5.2 Doppler Broadening; 1.5.3 Lorentzian Broadening or Pressure Broadening

1.5.4 Holtsmark Broadening or Resonance Broadening1.5.5 Field Broadening or Stark Broadening; 1.5.6 Self-Absorption and Self-Reversal Broadening; 1.6 Brief Summary of Atomic Spectroscopic Techniques Used for Elemental Analysis; 1.6.1 The Atomic Absorption Spectrophotometer; 1.6.2 Atomic Fluorescence Spectroscopy; 1.6.3 Direct Current Plasma Optical Emission Spectrometry (DCP-OES); 1.6.4



Microwave Induced Plasma (MIP); 1.6.5 Glow Discharge Optical Emission Spectrometry (GD-OES); 1.6.6 Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES)

1.7 Summary: Applications of Atomic SpectroscopyReferences; 2 Instrumentations Associated with Atomic Spectroscopy; 2.1 Instrumentation; 2.2 Types of Plasma Sources; 2.2.1 Direct Current Plasma Atomic Emission Spectrograph; 2.2.2 Microwave Induced Plasma; 2.2.3 Optical Emission Spectroscopy; 2.3 Sample Introduction Systems; 2.3.1 Mechanical Transfer of Sample/Standards Using Peristaltic Pump, Pressure Valves, Motorised Syringes, etc.; 2.3.2 Nebulisers; 2.3.3 Brief Outline of Atomic Spectroscopy Hyphenated Systems; 2.4 Spray Chambers; 2.5 ICP-OES Torches; 2.6 Optics; 2.6.1 Grating Orders

2.7 Signal Detectors2.7.1 Photomultiplier Tubes; 2.7.2 Charge Coupled Devices; References; 3 Methodologies of Metal Analysis of Organic Matrices Using ICP-OES; 3.1 Sample Preparation Techniques and Methods of Analysis; 3.2 Defining Goals; 3.3 Steps in Chemical Analytical Protocol; 3.4 Sampling and its Importance; 3.5 Sample Preparation Methods; 3.5.1 Direct Analysis of Organic Solutions; 3.5.2 Sample Dissolution; 3.5.3 Chemical Extraction of Metals from Organic Matrices; 3.5.4 Dry Ashing without Retaining Aids; 3.5.5 Dry Ashing with Retaining Aids; 3.5.6 Acid Digestion Using Microwave Oven

3.5.7 Oxygen Bomb Flask Combustion (Low Pressure)3.5.8 High Pressure Oxygen Combustion; 3.5.9 Sample Preparation Using Fusion Methods; 3.5.10 Analysis Using Slurry Solution Method; 3.5.11 Sample Preparation Using Leaching Method; 3.5.12 Sample Preparation Using a UV Digester; 3.6 Non-Spectral Corrections Using ICP-OES; 3.6.1 Effect of Solvents on ICP-OES; 3.6.2 Effect of Viscosity on Signal Response; 3.6.3 Comparison of Nebulisation Efficiency of Solvents Using ICP-OES; 3.6.4 Choice of Carrier Liquid; 3.7 Methodology of Measurement; 3.7.1 Choice of Standard Materials

3.7.2 Quantitative Analysis Using Calibration Graph Method

Sommario/riassunto

There has been significant expansion in the application of atomic spectrographic techniques in recent years, which has brought with it the need to provide more flexible methods to a wider range of samples, particularly non-aqueous samples. This book compares the traditional and improved methods in the analysis of non-aqueous samples for elemental analyses by atomic emission spectroscopic methods whilst describing procedures that will attempt to improve sample preparation methods.



2.

Record Nr.

UNINA9910727497903321

Autore

Schaffer, Ekkehart

Titolo

Die pythagoreische Tradition : Studien zu Platon, Kepler und Hegel / von Ekkehart Schaffer

Pubbl/distr/stampa

Koln [etc.], : Bohlau, 2004

ISBN

3412147036

Descrizione fisica

XII, 223 p. ; 24 cm

Collana

Collegium Hermeneuticum ; 10

Locazione

FLFBC

Collocazione

DFT A81 SCHE 01

Lingua di pubblicazione

Tedesco

Formato

Materiale a stampa

Livello bibliografico

Monografia