The purpose of this paper is to present a study on miniaturized instruments for analytical chemistry with a microplasma as the excitation source.,The atmospheric pressure glow microdischarge could be ignited inside a ceramic structure between a solid anode and a liquid cathode. As a result of the cathode sputtering of the solution, it was possible to determine its chemical composition by analyzing the emission spectra of the discharge. Cathodes with microfluidic channels and two types of anodes were constructed. Both types were tested through experimentation. Impact of the electrodes geometry on the discharge was established. A cathode aperture of various sizes and anodes made from different materials were used.,The spectroscopic properties of the discharge and its usefulness in the analysis depended on the ceramic structure. The surface area of the cathode aperture and the flow rate of the solution influence on the detection limits (DLs) of Zn and Cd.,Constructed ceramic structures were able to excite elements and their laboratory-size systems. During the experiments, Zn and Cd were detected with DLs 0.024 and 0.053 mg/L, respectively.

中文翻译：

---

基于微等离子体发生器的元素传感器

本文的目的是研究以微等离子体为激发源的小型化分析化学仪器。大气压辉光微放电可以在固体阳极和液体阴极之间的陶瓷结构内点燃。由于溶液的阴极溅射，可以通过分析放电的发射光谱来确定其化学成分。构建了具有微流体通道的阴极和两种类型的阳极。这两种类型都通过实验进行了测试。确定了电极几何形状对放电的影响。使用了各种尺寸的阴极孔和由不同材料制成的阳极。放电的光谱特性及其在分析中的有用性取决于陶瓷结构。阴极孔的表面积和溶液流速对锌和镉的检测限 (DL) 的影响。构建的陶瓷结构能够激发元素及其实验室规模的系统。在实验过程中，Zn 和 Cd 的检测限分别为 0.024 和 0.053 mg/L。