Application of a novel LIBS prototype as an analytical grade tool for Li quantification in pegmatite samples

• Type: Article in International Conference Proceedings Book
• Date: 2019-10-03

Authors

Cátia Dias (Collaborator) FCUP; Diana Guimarães (Author) Other; Miguel Ferreira (Collaborator) Other; Ricardo Ribeiro (Collaborator) Other; Alexandre Lima (Collaborator) FCUP; Rui Martins (Collaborator) Other; Pedro Jorge (Collaborator) FCUP

Conference proceedings International

Title: FOURTH INTERNATIONAL CONFERENCE ON APPLICATIONS OF OPTICS AND PHOTONICS

4th International Conference on Applications of Optics and Photonics (AOP)

Univ Lisbon, Lisbon, PORTUGAL, MAY 31-JUN 04, 2019

Indexing

ISI Web of Knowledge - 3 Citations

Scopus - 4 Citations

Other information

Authenticus ID: P-00R-894

DOI: 10.1117/12.2527978

Abstract (EN): A high-resolution advanced laser induced breakdown spectroscopy prototype was used to quantify lithium (Li) in lithiniferous rocks. Samples were collected from Barroso's mine (Portugal), claimed as Western Europe's largest spodumene Li discovery. 51 samples from a reverse circulation drill were collected, one for each meter interval, dried, milled, pressed into pellets and further analyzed by laser induced breakdown spectroscopy. Quantification was attempted using either linear models based on the intensity of selected Li spectral lines or advanced chemometrics methods. The latter was very successful, with correlation coefficients of 0.97 against certified laboratory results.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6