Journal
MICROCHIMICA ACTA
Volume 184, Issue 4, Pages 1069-1076Publisher
SPRINGER WIEN
DOI: 10.1007/s00604-017-2106-6
Keywords
Fractionation; Separation; Nanoparticle; Extraction; Ionic liquid; Toothpaste; Coconut milk Coconut syrup
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Funding
- Spanish Ministry of Innovation and Science [CTQ2014-52939R]
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The paper reports on a method for the detection of nanocellulose (NC) in consumer products by making use of a combination of (a) liquid-liquid extraction with an ionic liquid, and (b) size characterization by asymmetric flow field-flow fractionation (AF4) coupled to multi-angle light scattering (MALS) and refractive index (RI) detection. Both AF4 and MALS are viable tools for characterizing the size of the nanofibers. Sample preparation is easy, and the extraction efficiency of the method is 80.9 +/- 1.8% (n = 5). It was applied to the detection of NC in toothpaste and coconut foodstuff to verify the practicability of the method.
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