2,879 research outputs found
ANY 4. Architetture femminili: lavoro di raccolta (dialogo con Gisella Bassanini e Rossella Gotti)
No full textIntroduction [a English Historical Linguistics 2006 vol II: Lexical and Semantic change]
No full textIntroduction [a English Historical Linguistics 2006. Volume III: Geo-historical Variation in English]
No full textCapillary electrophoresis of phytochemical substances in herbal drugs and medicinal plants
No full textThis paper reviews the applications of electromigration methods in analysis of phytochemical substances
in herbal drugs and medicinal plants.
A short description of the basic principles of capillary electrophoretic techniques is firstly given, then
the overview deals with the applications of selected methods published in the period 2005–2010.
The phytochemical substances have been classified according to their chemical nature (e.g. alkaloids,
polyphenols, carbohydrates, lipids, terpenes) and the applied CE approaches, namely CZE, NACE, MEKC,
MEEKC and CEC, together with the different detection methods, are critically discussed for each of the considered classes of natural compounds
Journal of Pharmaceutical Biomedica Analysis
No full textThis journal is an international medium directed towards the needs of academic, clinical, government and industrial analysis by publishing original research reports and critical reviews on pharmaceutical and biomedical analysis. It covers the interdisciplinary aspects of analysis in the pharmaceutical, biomedical and clinical sciences, including developments in analytical methodology, instrumentation, computation and interpretation
Metodi elettrochimici di analisi
No full textI metodi elettrochimici di analisi costituiscono un'ampia famiglia di tecniche analitiche di vasta applicabilità, basati sulle proprietà elettriche degli analiti in soluzione. Si tratta di metodi in continua evoluzione: i metodi elettrochimici più classici, come la potenziometria, si basano sull'uso di celle elettrochimiche per ottenere informazioni di tipo analitico anziché produrre energia elettrica. Nelle applicazioni più moderne la cella elettrochimica classica è sostituita da dispositivi con microelettrodi o elettrodi a membrana ionoselettiva
Linguistic and stylistic features of 18th-century English advertisements
No full textThis volume is a tribute to Domenico Pezzini and to his long and outstanding career as a Professor of English at the Catholic University of Milan, then at the University of Sassari and finally at the University of Verona
Analysis of alkaloids by capillary electrophoresis
No full textCapillary electrophoresis (CE) is a useful tool in phytochemical analysis and it meets the requirements for the quality control of herbal drugs because of its versatility and high separation power. The wide opportunity for selectivity tuning allows the analysis of molecules with a wide range of polarity and molecular weight, in addition like high performance liquid chromatography (HPLC), the method is suitable for hyphenation with mass spectrometry (MS).
In the chapter it is given an overview on the most relevant aspects of the analysis of alkaloids by electromigration methods, namely capillary zone electrophoresis (CZE), nonaqueous capillary electrophoresis (NACE), micellar electrokinetic chromatography (MEKC), microemulsion electrokinetic chromatography (MEEKC) and capillary electrochromatography (CEC). Selected recent applications of CE in analysis of alkaloids are summarized in a table following the classification according to the chemical nature of the considered compounds
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