β Scribed by Professor Maria Dolores Luque de Castro, Professor Dr. Miguel ValcΓ‘rcel, Dr. Maria Teresa Tena (auth.)
No coin nor oath required. For personal study only.
Recent advances in analytical chemistry have turned it into a virtually unrecognizable science compared to a few decades ago, when it lagged behind other sciences and techniques. However, advances in analytical science have been far from universal: while innovations in instrumentation and data acquisition and processing systems have reached unprecedented levels thanks to parallel breakthroughs in computer science and chemoΒ metrics, progress in preliminary operations has been much slower despite their importance to analytical results. Thus, such clear trends in analytical process development as automation and miniaturization have not reached preliminary operations to the same extent, even though this area is proΒ bably in the greatest need. Improvement in preliminary operations is thus an urgent goal of analytical chemistry on the verge of the twenty first century. Increased R&D endeavours and manufacture of commercially available automatic equipment for implementation of the wide variety of operations that separate the uncollected, unmeasured, untreated sample from the signal measuring step are thus crucial on account of the wide variability of such operations, which precludes development of all-purpose equipment, and the complexity of some, particularly relating to solid samples. Supercritical fluid extraction opens up interesting prospects in this context and is no doubt an effective approach to automatioI1 and miniΒ aturization in the preliminary steps of the analytical process. The dramatic developments achieved in its short life are atypical in many respects.
Front Matter....Pages I-X
Preliminary Operations of the Analytical Process....Pages 1-31
Physico β Chemical Properties of Supercritical Fluids....Pages 32-78
Theoretical and Practical Aspects of Supercritical Fluid Extraction....Pages 79-168
The Analytical-Scale Supercritical Fluid Extractor....Pages 169-243
Analytical Applications of Supercritical Fluid Extraction....Pages 244-312
Back Matter....Pages 313-323
Analytical Chemistry; Food Science; Biochemistry, general
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