Sensitive and selective electrochemiluminescent detection of nitrite using dual-stabilizer-capped CdTe quantum dots

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• 作者：Xunxun Yin ; Qiongfang Chen ; Honglei Song ; Miao Yang ; Haiyan Wang
• 关键词：CdTe QDs ; GSH-TGA ; Electrochemiluminescence ; Nitrite
• 刊名：Electrochemistry Communications
• 出版年：2013
• 出版时间：September, 2013
• 年：2013
• 卷：34
• 期：Complete
• 页码：81-85
• 全文大小：579 K

文摘

Dual-stabilizer-capped CdTe quantum dots (QDs) were prepared by a one-pot strategy with glutathione (GSH) and thioglycolic acid (TGA) as stabilizers (denoted as GSH-TGA-CdTe). Due to the presence of dual stabilizer, the as-prepared CdTe QDs not only displayed strong anodic electrochemiluminescence (ECL), but also showed sensitive and selective ECL response to nitrite. A linear range from 4.2 to 207 nM and a detection limit of 1.4 nM (S/N = 3) were obtained for the detection of nitrite.