1,721,071 research outputs found
Cromatografia in Fase liquida ad alta risoluzione (HPLC) dei caroteni su colonna di allumina. Applicazioni all'analisi degli alimenti.
No full textCromatografia in fase liquida ad alta risoluzione (HPLC) delle vitamine liposolubili nei formaggi. Nuova metodica di analisi dell'attività biologica totale delle vitamine a ed E.
No full textComparison between straigh and reversed phase in the high-performance liquid chromatographic fractionation of retinol isomers.
No full textLagrangian Raylaigh-Bénard convection
No full textUsing passive tracers as sensors, we obtain Lagrangian measurements of tracers position, velocity and temperature in Rayleigh-Bénard convection at Ra ∼ 107 ÷ 109. We report on statistics of temperature, velocity, and heat transport (Nusselt number). We observe that the Nusselt number is characterized by a largely intermittent behavior, likely due to the interaction of temperature with turbulent velocity fluctuations
Aggiornamento merceologico sui coloranti alimentari: caratteristiche chimiche, impieghi,normativa comparata CEE - USA
No full textHigh-performance liquid chromatography of retinols, retinols (vitamin A1) and their dehydro-omolog (Vitamin A2). Improvements in resolution and spectroscopic characterization of the steroisomers.
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High-performance liquid chromatography of the unsaponificable from samples of marine an fresh water fishes: Fractionation and identification of retinol (Vitamin A1)and dehydroretinol (vitamin A2)
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