RT Journal Article
T1 Application of an activated carbon-based support for magnetic solid phase extraction followed by spectrophotometric determination of tartrazine in commercial beverages
A1 Rodríguez, Jose A.
A1 Escamilla Lara, Karen A.
A1 Guevara Lara, Alfredo
A1 Miranda López, José Manuel
A1 Páez Hernández, María Elena
K1 Tartrazine
AB A method is presented for magnetic solid phase extraction of tartrazine from nonalcoholic beverages. The method involvesthe extraction and clean-up by activated carbon covered with magnetite dispersed in the sample, followed by the magneticisolation and desorption of the analyte by basified methanol. The tartrazine eluted from the magnetic support was determinedby spectrophotometry. Under optimal conditions, the linear range of the calibration curve ranges from 3 to 30 mg L−1, with a limitof detection of 1 mg L−1. The method was validated by comparing the results with those obtained by HPLC. A precision of <5.0%was obtained in all cases and no significant differences were observed (𝑃 < 0.05)
PB Hindawi
SN 1687-8760
YR 2015
FD 2015
LK http://hdl.handle.net/10347/22049
UL http://hdl.handle.net/10347/22049
LA eng
NO Rodríguez, J. A., Escamilla Lara, K. A., Guevara Lara, A., Miranda López, J. M. & Páez Hernández, E. (2015). Application of an activated carbon-based support for magnetic solid phase extraction followed by spectrophotometric determination of tartrazine in commercial beverages. International journal of analytical chemistry, vol. 2015 (ID 291827), 8
NO The authors wish to thank CONACyT (Project INFR-2014- 227999) and Consejería de Cultura, Educacion e Ordenación Universitaria, and Xunta de Galicia (Project EM 2012/153) forthe financial support
DS Minerva
RD 24 abr 2026