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 H₂O₂. 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⁻¹, 3-NPA can be quantitatively analyzed along with a detection limit of 0.008 mg L⁻¹. 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微等离子体的微型鲁米诺化学发光系统，无需任何催化剂即可检测。在我们的研究中，大气微等离子射流被用来氧化鲁米诺并产生化学发光而不是H ₂ O ₂。OH 自由基传输到等离子体-液体界面并诱导化学发光。该系统的重量仅为3.6 kg（包括一台1.2 kg的笔记本电脑），微等离子体的功耗仅为0.045 W。本研究研究了微等离子体射流诱导鲁米诺化学发光和产生微等离子体射流的机理。1 mL 样品溶液足以在 6 分钟的分析时间内测定痕量 3-NPA。在 0.03–10 mg L ^-1范围内, 3-NPA 可以进行定量分析，检测限为 0.008 mg L ^-1。此外，所提出的系统用于真实世界的样品检测，包括水样、红糖和受污染的甘蔗，证明了该检测方法的可靠性和实用性。