More than one and a half decades have passed since the last book was published describing developments in the analytical chemistry of synthetic colorants. In the intervening period, the scope and technical capabilities of instrumentation for analysing dyes and pigments has significantly expanded. It is now possible to rapidly resolve a number of problems whose solutions were previously either unattainable or very difficult to achieve. For instance, the unambiguous assignment of all the signals in the proton NMR spectrum of a trisazo direct dye, and the confirmation of the molecular weight of involatile, and, in particular, sulphonated dyes, without derivatisation, are now routine analytical techniques in many laboratories today. In addition, it is now possible to record the NMR spectrum of a dye molecule on less than 1 mg of material, and we are no longer limited to solution spectra, since solid samples can now be routinely analysed in NMR experiments. Whilst not attempting to be all encompassing, this volume is intended to bridge the gap between what was covered in the earlier work edited by Professor Venkataraman and the developments which have since ensued in some key areas. It provides important updates in X-ray crystallography, proton NMR, IR spectroscopy and mass spectrometry, and additionally covers topics such as ESR, micro spectrophotometry and emission spectroscopy.
Rezensionen / Stimmen
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a very useful and informative text...As a concise reference text for bringing one up to date with developments in the analysis of colourants, this book is to be strongly recommended.
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Chemistry and Industry
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ISBN-13
978-94-011-1358-8 (9789401113588)
DOI
10.1007/978-94-011-1358-8
Schweitzer Klassifikation
1 X-ray powder diffraction of synthetic organic colorants.- 1.1 Introduction.- 1.2 X-ray powder diffraction data.- Acknowledgement.- References.- 2 Solid state NMR spectroscopy of synthetic dyes.- 2.1 Introduction.- 2.2 Basic principles of cross polarization/magic angle spinning measurements.- 2.3 Examples of solid state NMR spectra of dyes.- 2.4 Survey of published chemical shift data on the solid state.- 2.5 Conclusions.- Acknowledgement.- References.- 3 Near IR spectroscopy.- 3.1 Introduction.- 3.2 Chromophoric systems of NIR dyes.- 3.3 NIR spectra of dyes.- 3.4 Conclusion.- References.- 4 Mass spectroscopy.- 4.1 Introduction.- 4.2 Ionization methods.- 4.3 Conclusion.- References.- 5 Electron spin resonance spectroscopy.- 5.1 Introduction.- 5.2 Basic principles.- 5.3 Applications.- 5.4 Conclusion.- References.- 6 Microspectrophotometry.- 6.1 Introduction.- 6.2 Microdensitometry and microspectrophotometry.- 6.3 Microfluorometry.- 6.4 Conclusion.- References.- 7 Emission spectroscopy.- 7.1 Introduction.- 7.2 Principles.- 7.3 Techniques.- 7.4 Applications to fluorescent whitening 'dyes'.- Acknowledgements.- References.- 8 Identification and analysis of diarylide pigments by spectroscopic and chemical methods.- 8.1 Introduction.- 8.2 Analytical methodology of diarylide pigments.- 8.3 Analysis of diarylide pigments by infra-red spectroscopy.- 8.4 Analysis of diarylide pigments by visible spectroscopy.- 8.5 Thin layer chromatography in diarylide pigments.- 8.6 General scheme for the analysis in diarylide pigments.- 8.7 Identification of diarylide pigments by reduction.- 8.8 High performance liquid chromatography of aromatic amines in diarylide pigments.- 8.9 Gas chromatography of 3,3?-dichlorobiphenyl in diarylide pigments.- Acknowledgements.- References.
