Issue 4, 2020

Determination of fluorine in copper ore using laser-induced breakdown spectroscopy assisted by the SrF molecular emission band

Abstract

The widely applied copper metal is mainly produced by smelting copper ore, in which fluorine (F) is one of the harmful elements. Therefore, the F content has become a mandatory test index for copper ore. The low excitation efficiency, complex and serious spectral interference makes it difficult to detect F element in copper ore using atomic emission spectroscopy of laser-induced breakdown spectroscopy (LIBS). To address this issue, SrF molecular emission bands were investigated to improve the analytical capabilities of LIBS for the determination of trace F in copper ore. The results demonstrated that the SrF molecular emission band produces a significantly accurate calibration model (R2 = 0.9933), with high detection sensitivity (5 ppm), high analytical accuracy (RMSECV = 0.0049 wt%), and high analytical precision (6.64 wt%) for detection of F in copper ore. SrF molecular emission bands in LIBS show great potential for F determination in the copper ore industry. Furthermore, the mechanism behind the emission spectrum for the SrF molecule was also discussed.

Graphical abstract: Determination of fluorine in copper ore using laser-induced breakdown spectroscopy assisted by the SrF molecular emission band

Associated articles

Article information

Article type
Paper
Submitted
01 Dec 2019
Accepted
14 Jan 2020
First published
15 Jan 2020

J. Anal. At. Spectrom., 2020,35, 754-761

Determination of fluorine in copper ore using laser-induced breakdown spectroscopy assisted by the SrF molecular emission band

Z. Tang, R. Zhou, Z. Hao, W. Zhang, Q. Li, Q. Zeng, X. Li, X. Zeng and Y. Lu, J. Anal. At. Spectrom., 2020, 35, 754 DOI: 10.1039/C9JA00407F

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements