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The bright colour of haemoglobin has, from the very beginning, played a significant role in both the investigation of this compound as well as in the study of blood oxygen transport. Numerous optical methods have been developed for measuring haemoglobin concentration, oxygen satu...ration, and the principal dyshaemoglobins in vitro as well as in vivo. Modern applications include pulse oximeters, fibre optic oximeters, multiwavelength haemoglobin photometers ('co-oximeters') and instruments for near infrared spectroscopy in vivo. Knowledge of the light absorption spectra of the common haemoglobin derivatives is a prerequisite for the development and understanding of these techniques. In the 1960s a reference method based on the absorptivity of a single derivative (haemiglobincyanide; HiCN) at a single wavelength (540 nm) was established for measuring the total haemoglobin concentration. Thus an anchor value was provided on which the absorptivity spectra of all other haemoglobin derivatives could be based. This monograph presents absorption spectra and absorptivity data in the wavelength range of 480 to 1000 nm of the major haemoglobin derivatives for human adult and foetal haemoglobin and for haemoglobin of several animals (cow, dog, horse, pig, rat, and adult and foetal sheep). A detailed description of the methods used to acquire these data has been included to allow future investigators to reproduce and expand on the data. The second part of the monograph includes chapters on the principles and development, in historical perspective, of the principal methods for measuring total haemoglobin concentration for two, three, and multi-component analysis of haemoglobin derivatives, and for blood oxygen saturation measurement. Accurate quantitative data pertaining to haemoglobin in human blood are presented, together with a description of methods for measuring haemoglobin oxygen capacity and oxygen affinity. These chapters have been written with a view to foster
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Mass Spectrometry (MS) has rapidly become an indispensable tool in polymer analysis, and modern MS today complements in many ways the structural data provided by Nuclear Magnetic Resonance (NMR) and Infrared (IR) methods. Recent advances have sparked a growing interest in this fi...eld and established a need for a summary of progress made and results achieved. Mass Spectrometry of Polymers effectively fills this need. The discussion begins by introducing MS in detail, providing a historical perspective and a review of modern instrumentation and methods. The text then focuses on mathematical concepts and practical algorithms used in some of the major quantitative polymer applications of MS, providing a skillful prologue to polymer characterization techniques. Detailed chapters follow, describing the most relevant applications of MS to the analysis of polymers and the techniques currently employed. Authored by internationally recognized experts from academia and industry, Mass Spectrometry of Polymers is the only state-of-the-art work available that deals systematically with this rapidly emerging discipline, and will be useful to both novices and experienced practitioners in polymer MS.
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This volume presents a complete and thorough examination of advances in the instrumentation, evaluation, and implementation of UV technology for reliable and efficient data acquisition and analysis. It provides real-world applications in expanding fields such as chemical physics,... plasma science, photolithography, laser spectroscopy, astronomy and atmospheric science.
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