Browsing Articles publicats (Química) by Subject "Química analítica"

Now showing items 1-4 of 4

    • Acylation of chiral alcohols: a simple procedure for chiral GC analysis 

      Oromí Farrús, Mireia; Torres i Grifo, Mercè; Canela i Garayoa, Ramon (Hindawi Publishing Corporation, 2012)
      The use of iodine as a catalyst and either acetic or trifluoroacetic acid as a derivatizing reagent for determining the enantiomeric composition of acyclic and cyclic aliphatic chiral alcohols was investigated. Optimal ...

    • Analytical tools for the analysis of carotenoids in diverse materials 

      Rivera Vélez, Sol Maiam; Canela i Garayoa, Ramon (Elsevier, 2012)
      High-performance liquid chromatography (HPLC) has become the method of choice for carotenoid analysis. Although a number of normal-phase columns have been reported, reverse-phase columns are the most widely used stationary ...

    • Dissolution Kinetics and Solubility of ZnO Nanoparticles Followed by AGNES 

      David, Calin; Galceran i Nogués, Josep; Rey Castro, Carlos; Puy Llorens, Jaume; Companys Ferran, Encarnació; Salvador, José; Monné Esquerda, Josep; Wallace, Rachel; Vakourov, Alex (American Chemical Society, 2012)
      There is a current debate on whether the toxicity of engineered ZnO nanoparticles (NPs) can be traced back to their nanoscale properties or rather to the simple fact of their relatively high solubility and consequent ...

    • Use of biobased crude glycerol, obtained biocatalytically, to obtain biofuel additives by catalytic acetalization of furfural using SAPO catalysts 

      Guerrero-Ruíz, Federico; Yara Varón, Edinson; González, María Dolores; Torres i Grifo, Mercè; Salagre, Pilar; Canela i Garayoa, Ramon; Cesteros, Yolanda (Elsevier, 2022)
      High-pure crude glycerol, obtained from the transesterification of coconut oil with ethanol using lipase enzyme- type as biocatalyst, has been used for the acetalization of furfural with several SAPO 5 and SAPO 34 catalysts. ...