{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T21:28:23Z","timestamp":1777498103991,"version":"3.51.4"},"reference-count":36,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2018,6,12]],"date-time":"2018-06-12T00:00:00Z","timestamp":1528761600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>TiO2-reduced graphene oxide composite-modified glassy carbon electrodes (TiO2\u2013ErGO\u2013GCE) for the sensitive detection of tartrazine were prepared by drop casting followed by electrochemical reduction. The as-prepared material was characterized by transmission electron microscopy (TEM) and X-ray diffraction (XRD). Cyclic voltammetry and second-order derivative linear scan voltammetry were performed to analyze the electrochemical sensing of tartrazine on different electrodes. The determination conditions (including pH, accumulation potential, and accumulation time) were optimized systematically. The results showed that the TiO2\u2013ErGO composites increased the electrochemical active area of the electrode and enhanced the electrochemical responses to tartrazine significantly. Under the optimum detection conditions, the peak current was found to be linear for tartrazine concentrations in the range of 2.0 \u00d7 10\u22128\u20132.0 \u00d7 10\u22125 mol\/L, with a lower detection limit of 8.0 \u00d7 10\u22129 mol\/L (S\/N = 3). Finally, the proposed TiO2\u2013ErGO\u2013GCEs were successfully applied for the detection of trace tartrazine in carbonated beverage samples.<\/jats:p>","DOI":"10.3390\/s18061911","type":"journal-article","created":{"date-parts":[[2018,6,12]],"date-time":"2018-06-12T10:58:32Z","timestamp":1528801112000},"page":"1911","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":81,"title":["Sensitive and Selective Detection of Tartrazine Based on TiO2-Electrochemically Reduced Graphene Oxide Composite-Modified Electrodes"],"prefix":"10.3390","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9849-7953","authenticated-orcid":false,"given":"Quanguo","family":"He","sequence":"first","affiliation":[{"name":"School of Materials Science and Energy Engineering, Foshan University, Foshan 528000, China"},{"name":"Department of Chemistry and Material Science, Hengyang Normal University, Hengyang 421008, China"},{"name":"Hunan Key Laboratory of Biomedical Nanomaterials and Devices, College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jun","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Materials Science and Energy Engineering, Foshan University, Foshan 528000, China"},{"name":"Hunan Key Laboratory of Biomedical Nanomaterials and Devices, College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiaopeng","family":"Liu","sequence":"additional","affiliation":[{"name":"Department of Chemistry and Material Science, Hengyang Normal University, Hengyang 421008, China"},{"name":"Hunan Key Laboratory of Biomedical Nanomaterials and Devices, College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Guangli","family":"Li","sequence":"additional","affiliation":[{"name":"School of Materials Science and Energy Engineering, Foshan University, Foshan 528000, China"},{"name":"Hunan Key Laboratory of Biomedical Nanomaterials and Devices, College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peihong","family":"Deng","sequence":"additional","affiliation":[{"name":"Department of Chemistry and Material Science, Hengyang Normal University, Hengyang 421008, China"},{"name":"Hunan Key Laboratory of Biomedical Nanomaterials and Devices, College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jing","family":"Liang","sequence":"additional","affiliation":[{"name":"Department of Chemistry and Material Science, Hengyang Normal University, Hengyang 421008, China"},{"name":"Hunan Key Laboratory of Biomedical Nanomaterials and Devices, College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Dongchu","family":"Chen","sequence":"additional","affiliation":[{"name":"School of Materials Science and Energy Engineering, Foshan University, Foshan 528000, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2018,6,12]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"38","DOI":"10.1016\/j.aca.2009.10.001","article-title":"Second order advantage in the determination of amaranth, sunset yellow FCF and tartrazine by UV\u2013vis and multivariate curve resolution-alternating least squares","volume":"655","author":"Llamas","year":"2009","journal-title":"Anal. 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