光漂白
荧光
量子产额
检出限
碳纤维
碳量子点
化学
量子点
选择性
甘氨酸
氮气
光化学
分析化学(期刊)
材料科学
色谱法
纳米技术
复合数
生物化学
有机化学
氨基酸
催化作用
复合材料
量子力学
物理
作者
Cunjin Wang,Huanxian Shi,Min Yang,Yujia Yan,Enzhou Liu,Zhen Ji,Jun Fan
标识
DOI:10.1016/j.jphotochem.2020.112374
摘要
Herein, a novel nitrogen-doped carbon quantum dots (N-CQDs) with bright blue fluorescence were prepared using glycine and urea by a facile solid-heat method. The prepared N-CQDs had a relatively high quantum yield (QY = 21.04 %), excellent photobleaching resistance, acid and alkali resistance. Moreover, it was used as fluorescent probe for the detection of dopamine (DA) with high selectivity and a low limit of detection (LOD = 0.0972 μM). Additionally, this fluorescent probe was successfully used to the determination of DA in human serum and rat serum with satisfactory recoveries (98.24 %–107.86 %), indicating this probe is was a promising biomolecular sensor for quantitation of DA in serum.
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