基于二芳基乙烯化学传感器的高选择性顺序识别锌和 HSO/HPO 的探针。
A highly selective sequential recognition probe for Zn and HSO/HPO based on a diarylethene chemosensor.
机构信息
Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, PR China.
Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, PR China.
出版信息
Spectrochim Acta A Mol Biomol Spectrosc. 2021 Feb 5;246:119052. doi: 10.1016/j.saa.2020.119052. Epub 2020 Oct 8.
A novel diarylethene derivative chemosensor DTP-o connected to Schiff base unit for fluorescent detection of Zn and relay-detection of HSO/HPO was designed and synthesized successfully. DTP-o displayed excellent photochromism and fluorometric sensing toward Zn to form DTP-o-Zn complex in acetonitrile with the detection limit of 5.62 × 10 M. And the form of DTP-o combined with Zn could further be verified by Job's plot titrations and mass spectrometry analysis. Furthermore, the complex of DTP-o-Zn showed an excellent characteristic of fluorescent relay-response toward HSO and HPO with high sensitivity and selectivity. The detection limits for HSO and HPO were as low as 3.04 × 10 M and 3.41 × 10 M, respectively. Moreover, the sensor DTP-o could also be applied to detect Zn on practical samples and test strips with high accuracy.
成功设计并合成了一种新型二噻吩乙烯衍生物化学传感器 DTP-o，其与席夫碱单元相连，用于荧光检测 Zn 和对 HSO/HPO 的接力检测。DTP-o 在乙腈中显示出优异的光致变色和荧光传感性能，可与 Zn 形成 DTP-o-Zn 配合物，检测限为 5.62×10^-7 M。并且，通过 Job 的滴定实验和质谱分析进一步验证了 DTP-o 与 Zn 结合的形式。此外，DTP-o-Zn 配合物对 HSO 和 HPO 具有出色的荧光接力响应特性，具有高灵敏度和选择性。对 HSO 和 HPO 的检测限分别低至 3.04×10^-7 M 和 3.41×10^-7 M。此外，该传感器 DTP-o 还可以用于实际样品和测试条中 Zn 的高准确度检测。
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