1,720,979 research outputs found
Photoelectrochemical effect of the anodic deposit obtained on platinum from selenocyanate ammoniate.
No full textOttimizzazione del metodo delle aggiunte standard nella determinazione di tracce di metalli pesanti in acque naturali mediante voltammetria di ridissoluzione anodica.
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Analisi simultanea di Cd, Pb e Cu in acqua di mare mediante voltammetria di ridissoluzione anodica. Studio della contaminazione dei campioni nella filtrazione e conservazione.
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Studi elettroanalitici e reazioni chimiche accoppiate a processi elettrodici in tiocianati alcalini fusi.
No full textStudy of the quality of extra virgin olive oil stored in PET bottles
No full textA comparative evaluation of the extra virgin olive oil (EVOO) storage performance of PET bottles containing an oxygen scavenger and simple PET bottles was planned and carried out to assess the ability of active barrier PET bottles to preserve the quality of EVOO during its whole shelf life. Results of the 13-months experimental study indicate that the enclosure of the oxygen scavenger in the plastic matrix is able to better maintain the quality and authenticity attributes of the EVOO: a reduced flux of oxygen through the PET bottle keeps the level of primary and secondary oxidation products lower than that obtained in simple PET bottles stored under the same conditions. The active barrier reduces the EVOO antioxidant activity decline during storage. The chlorophylls content decay can only be prevented via the storage of the sample in the dark, while the active barrier is able to diminish the carotenes loss at the end of the shelf life. On the whole, the performance of the tested innovative packageing proved to better preserve the extra virgin characteristics of the oil during its shelf life
Electrolytic oxidation of thiocyanate and selenocyanate salts and photoelectrochemical effect.
No full textGoing Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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