School of Control Engineering, Hebei Key Laboratory of Micro-Nano Precision Optical Sensing and Measurement Technology, Northeastern University at Qinhuangdao, Qinhuangdao 066004, China.
School of Control Engineering, Hebei Key Laboratory of Micro-Nano Precision Optical Sensing and Measurement Technology, Northeastern University at Qinhuangdao, Qinhuangdao 066004, China; College of Information Science and Engineering, Northeastern University, Shenyang 110819, China.
Spectrochim Acta A Mol Biomol Spectrosc. 2022 Oct 15;279:121399. doi: 10.1016/j.saa.2022.121399. Epub 2022 May 18.
A miniature luminol chemiluminescence system based on atmosphere microplasma is proposed for detection without any catalysts. In our research, atmosphere microplasma jet is employed to oxidize luminol and produce chemiluminescence instead of HO. The transport of OH radicals to the plasma-liquid interface and induce the chemiluminescence. The weight of the system is only 3.6 kg (including a 1.2 kg laptop), and the power consumption of the microplasma is only 0.045 W. The mechanism of luminol chemiluminiscence induced by microplasma jet and generation of microplasma jet are investigated in this study. A 1 mL sample solution is sufficient for trace 3-NPA determination within an analysis time of 6 min. In the range of 0.03-10 mg L, 3-NPA can be quantitatively analyzed along with a detection limit of 0.008 mg L. In addition, the proposed system is employed for real-world samples detection, including water samples, brown sugar and tainted sugarcane, which demonstrates the reliability and practical feasibility of the detection method.
提出了一种基于大气压微等离子体的微型鲁米诺化学发光体系，用于无催化剂检测。在我们的研究中，采用大气压微等离子体射流氧化鲁米诺并产生化学发光，而不是 HO。OH 自由基向等离子体-液体界面的传输并诱导化学发光。整个系统的重量仅为 3.6 千克（包括 1.2 千克的笔记本电脑），微等离子体的功耗仅为 0.045 瓦。本研究探讨了微等离子体射流诱导鲁米诺化学发光的机制和微等离子体射流的产生。在 6 分钟的分析时间内，仅需 1 毫升样品溶液即可对痕量 3-NPA 进行定量分析。在 0.03-10 毫克/升范围内，3-NPA 可定量分析，检测限为 0.008 毫克/升。此外，该系统还用于实际样品检测，包括水样、红糖和污染甘蔗，证明了该检测方法的可靠性和实际可行性。
