Portable laser-induced fluorescence spectrum device for metal ions detection

Xinqi Zhu; Pei Zhang; Baodui Wang; Panpan Sun; Guanghui Wang; Kun Du; Huijie Huang

doi:10.1117/12.2606750

24 November 2021 Portable laser-induced fluorescence spectrum device for metal ions detection

Xinqi Zhu, Pei Zhang, Baodui Wang, Panpan Sun, Guanghui Wang, Kun Du, Huijie Huang

Proceedings Volume 12065, AOPC 2021: Optical Sensing and Imaging Technology; 120652T (2021) https://doi.org/10.1117/12.2606750
Event: Applied Optics and Photonics China 2021, 2021, Beijing, China

Abstract

A portable and sensitive laser-induced fluorescence device combined with specific probes is developed for detecting the concentration of metal ions in solution. A 405nm laser diode is applied as an excitation light source to excite the fluorescence of the experimental materials, which is coupled into an optical fiber through a collimating and focusing lens group and then introduced into the spectrometer. Sterile water, alcohol and blue fluorescent microspheres are used to evaluate the detection capability of the device. We compared the fluorescence spectrum of probe solution mixed zinc ions with different concentrations from our device and a commercial fluorescence spectrophotometer. The detection sensitivity of our device is the same as the commercial spectrophotometer, and because of its small size, it can be used for on-site heavy metal detection.

Citation Download Citation

Xinqi Zhu, Pei Zhang, Baodui Wang, Panpan Sun, Guanghui Wang, Kun Du, and Huijie Huang "Portable laser-induced fluorescence spectrum device for metal ions detection", Proc. SPIE 12065, AOPC 2021: Optical Sensing and Imaging Technology, 120652T (24 November 2021); https://doi.org/10.1117/12.2606750

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