Design of spark pulse discharge aerosol excitation source

Yonglang Li; Zhankuo Wang

doi:10.1117/12.2639696

19 October 2022 Design of spark pulse discharge aerosol excitation source

Yonglang Li, Zhankuo Wang

Proceedings Volume 12294, 7th International Symposium on Advances in Electrical, Electronics, and Computer Engineering; 1229425 (2022) https://doi.org/10.1117/12.2639696
Event: 7th International Symposium on Advances in Electrical, Electronics and Computer Engineering (ISAEECE 2022), 2022, Xishuangbanna, China

Abstract

The spark ablation solid injection method has the advantages of direct determination of conductive samples, low price, good repeatability and accuracy, and simple operation. However, the use of high-voltage DC power supply, ablative spark temperature is low, is not conducive to the formation of aerosols. In this paper, a high-energy spark pulse aerosol excitation source for the formation of aerosols for spark ablation metal samples is proposed, and the excitation source uses highenergy spark pulse discharge to continuously ablate metal samples to produce micro and nano-scale aerosols, which can be directly used for ICP mass spectrometry or spectroscopy for elemental analysis. The spark pulse discharge electric aerosol excitation source pulse energy of 855mJ, the ablation time is up to 125us, the ablation point is uniform and has a good remelting effect, and the particle size of the aerosol particles formed is uniform, which proves that it has high stability and reliability.

Citation Download Citation

Yonglang Li and Zhankuo Wang "Design of spark pulse discharge aerosol excitation source", Proc. SPIE 12294, 7th International Symposium on Advances in Electrical, Electronics, and Computer Engineering, 1229425 (19 October 2022); https://doi.org/10.1117/12.2639696

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