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Carbon nanotubes as SPE sorbents for the extraction of salicylic acid from river water
Author(s) -
CaballeroDíaz Encarnación,
Valcárcel Miguel
Publication year - 2014
Publication title -
journal of separation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/jssc.201301204
Subject(s) - sorbent , carbon nanotube , salicylic acid , extraction (chemistry) , adsorption , activated carbon , analyte , solvent , chemistry , chromatography , solid phase extraction , carbon fibers , chemical engineering , materials science , nanotechnology , organic chemistry , composite material , composite number , biochemistry , engineering
This paper deals with the ability of different types of carbon nanotubes to adsorb salicylic acid in river water samples. The use of these nanoparticles as a sorbent in a SPE procedure prior to CE analysis is essential for improving the enrichment factor and the recovery values. Several experimental variables were optimized in order to maximize the extraction efficiency. The proposed analytical method is simple, fast, and entails low solvent consumption. Furthermore, salicylic acid could be extracted from river water providing good recovery values in the range from 76.2 to 102.0% (RSD<8.2%). The combination of the specific chemical properties of analyte and the unique physicochemical features of carbon nanotubes sheds new light on the use of these nanoparticles as excellent sorbent materials of pharmaceutical compounds in environmental matrices.