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A Facile Hg2+‐related Quenching Photoluminescence Sensor Based on Nitrogen‐doped Graphene Quantum Dots
Bulletin of the Korean Chemical Society ( IF 2.3 ) Pub Date : 2020-09-03 , DOI: 10.1002/bkcs.12095 Shi‐Man Du 1 , Bing‐Bing Shang 1 , Xiao‐Ru Zhang 2 , Fu Feng 1 , Sheng‐Hui Zhang 1 , Bao‐Ping Qi 1
Bulletin of the Korean Chemical Society ( IF 2.3 ) Pub Date : 2020-09-03 , DOI: 10.1002/bkcs.12095 Shi‐Man Du 1 , Bing‐Bing Shang 1 , Xiao‐Ru Zhang 2 , Fu Feng 1 , Sheng‐Hui Zhang 1 , Bao‐Ping Qi 1
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A Hg2+‐related quenching photoluminescence (PL) sensor was fabricated based on nitrogen‐doped graphene quantum dots (N‐GQDs) as the luminescent agent and glutathione as the masking agent to detect Hg2+ in tap water. The addition of Hg2+ significantly reduced the PL intensity of N‐GQDs, which was attributed to coordination reaction inducing the aggregation of N‐GQDs. The Hg2+‐related quenching PL sensor with glutathione as the masking agent has good selectivity and accuracy. The sensor showed a linear relationship ranging from 0.5 to 110 nM with the detection limit 0.08 nM (S/N = 3). The proposed method was applied to the determination of Hg2+ in tap water, and the results were consistent with atomic absorption spectroscopy (AAS).
中文翻译：
基于氮掺杂石墨烯量子点的与Hg2 +相关的淬灭猝灭光致发光传感器
基于氮掺杂的石墨烯量子点（N-GQDs）作为发光剂和谷胱甘肽作为掩蔽剂制备了Hg 2+相关的猝灭光致发光（PL）传感器，以检测自来水中的Hg 2+。Hg 2+的添加显着降低了N-GQD的PL强度，这归因于配位反应诱导N-GQD的聚集。以谷胱甘肽为掩蔽剂的Hg 2+相关猝灭PL传感器具有良好的选择性和准确性。传感器显示出从0.5到110 nM的线性关系，检测极限为0.08 nM（S / N = 3）。该方法可用于Hg 2+的测定。 在自来水中，结果与原子吸收光谱法（AAS）一致。
更新日期：2020-09-20
中文翻译：
基于氮掺杂石墨烯量子点的与Hg2 +相关的淬灭猝灭光致发光传感器
基于氮掺杂的石墨烯量子点（N-GQDs）作为发光剂和谷胱甘肽作为掩蔽剂制备了Hg 2+相关的猝灭光致发光（PL）传感器，以检测自来水中的Hg 2+。Hg 2+的添加显着降低了N-GQD的PL强度，这归因于配位反应诱导N-GQD的聚集。以谷胱甘肽为掩蔽剂的Hg 2+相关猝灭PL传感器具有良好的选择性和准确性。传感器显示出从0.5到110 nM的线性关系，检测极限为0.08 nM（S / N = 3）。该方法可用于Hg 2+的测定。 在自来水中，结果与原子吸收光谱法（AAS）一致。
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