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The production of oxygen\u2010containing reactant intermediates (O<jats:sub>2<\/jats:sub><jats:sup>\u2022\u2212<\/jats:sup> and OH<jats:sup>\u2022<\/jats:sup>) in the present CL system was verified by CL. The possible CL mechanism was discussed in detail. Furthermore, theophylline (THP) was determined based on its enhancement of the CL intensity of the CdTe QDs\u2013luminol\u2013potassium periodate system coupled with a flow\u2010injection technique. Under these optimized conditions, the linear range was found to be from 1.0\u00a0\u00d7\u00a010<jats:sup>\u22128<\/jats:sup> to 1.0\u00a0\u00d7\u00a010<jats:sup>\u22125<\/jats:sup>\u00a0g\/mL with a detection limit of 2.8\u00a0\u00d7\u00a010<jats:sup>\u22129<\/jats:sup>\u00a0g\/mL (3\u03c3). The recoveries for the determination of THP in tablets were from 98.2 to 99.6%.<\/jats:p>","DOI":"10.1002\/bio.3652","type":"journal-article","created":{"date-parts":[[2019,6,3]],"date-time":"2019-06-03T04:12:57Z","timestamp":1559535177000},"page":"673-679","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Flow\u2010injection chemiluminescence of the luminol\u2013potassium periodate system enhanced by TGA\u2013capped CdTe quantum dots for the determination of theophylline"],"prefix":"10.1002","volume":"34","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3012-1439","authenticated-orcid":false,"given":"Min","family":"Zhou","sequence":"first","affiliation":[{"name":"Key Laboratory of Bioelectrochemistry &amp; Environmental Analysis of Gansu Province, Key Laboratory of Eco\u2010Environment\u2010Related Polymer Materials Ministry of Education, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering Northwest Normal University  Lanzhou China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qiqi","family":"Chen","sequence":"additional","affiliation":[{"name":"Key Laboratory of Bioelectrochemistry &amp; 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