Alternative Applicator for MW-LIBS

Laser-induced breakdown spectroscopy (LIBS) is a fast and reliable technology to detect different elements using optical emission spectrum by radiation emitted from an ablation plasma, which is distinctive for each element.

The technology is a potential solution for a variety of industries such as food or mining. Microwave power is injected into the plasma using a near-field applicator to enhance the sensitivity. However, normally the applicator's material is silver-plated copper steel, suspected to create false signals due to contamination from copper and silver in the antenna's tip. In this research, we used platinum as an alternative material for the applicator.

The results show that using the new platinum applicator eliminated the copper and silver contamination in the signal produced.

Future energy and resources


Chemical Engineering and Advanced Materials

Abu Farhan Abu Kasim
Khuyen Lac Bao

vote for this project: FE83

Back to project list