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oai:uvadoc.uva.es:10324/242272021-06-23T11:49:04Zcom_10324_1185com_10324_931com_10324_894col_10324_1346

2017-07-06T10:02:53Z urn:hdl:10324/24227 Determination of Allura Red and Tartrazine in Food Samples by Sequential Injection Analysis Combined with Voltammetric Detection at Antimony Film Electrode Rodríguez, José Antonio Juárez, María Guadalupe Galán Vidal, Carlos Miranda, Jose María Barrado Esteban, Enrique An antimony film electrode prepared on-line and installed as part of a sequential injection system, was used as an electrochemical detector to determine azo dyes in food samples.The influence of several flow varia-bles were evaluated using a centra lcomposite design.In optimal conditions, the linear range of the calibration curve varied from 1–5 mM, with a limit of detection limit of 0.3 mM. The relative standard deviation of analytical repeatability was < 5.0 %.The method was validated by comparing the results obtained with those provided by HPLC; no significant difference were seen. 2017-07-06T10:02:53Z 2017-07-06T10:02:53Z 2015 info:eu-repo/semantics/article Electroanalysis, Vol. 27, p. 2329-2334 1521-4109 http://uvadoc.uva.es/handle/10324/24227 10.1002/elan.201500295 2329 2334 Electroanalysis 27 eng info:eu-repo/semantics/openAccess Wiley_VCH Wiley_VCH