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1.
  • Cavonius, Lillie, 1981, et al. (författare)
  • Fatty acid contaminations originating from commercially available solid phase-extraction columns
  • 2015
  • Ingår i: Chemical Science Review and Letters. - 2278-6783. ; 4:16, s. 1206-1209
  • Tidskriftsartikel (refereegranskat)abstract
    • It has been shown previously that commercially available solid phase extraction (SPE) columns release contaminants such as palmitic acid and stearic acid during separation of lipid classes. The presence of contaminating fatty acids in the fatty acid fraction is particularly troublesome. We here confirm that the overwhelming majority of the contaminants originate from the barrels, and have identified two contaminants as palmitic acid and stearic acid or their equivalents. We urge readers to take fatty acid contaminants into careful consideration when planning their experiments, and if necessary use sorbent packed in glass barrels instead of plastic such as polypropylene.
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2.
  • Sá, Jacinto, et al. (författare)
  • Synthesis, Characterization and Application to Catalysis of ZnO Nanocrystals
  • 2015
  • Ingår i: Chemical Science Review and Letters. - 2278-6783. ; 4:14, s. 735-745
  • Tidskriftsartikel (refereegranskat)abstract
    • Nano-metal oxides gained considerable importance due to theirdistinct catalytic activities in various organic transformations dueto the combination of high surface area and unusually reactivemorphologies. ZnO is an important semiconductor material, witha wide range of applications including: pigments, cosmetics,chemical sensors, solar cells and optoelectronics. Additionally,ZnO nanocrystals (NCs) are an eco-friendly, non-toxic,inexpensive and commercially available material, which isstarting to be exploited as a potentially economical and highlyefficient catalyst for a plethora of organic reactions. Herein, wereview fundamentals of ZnO NCs preparation and the recentdevelopments in reactions catalysed by ZnO NCs with specialfocus on solventless transformations.
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