Calcium fluoride as a dominating matrix for quantitative analysis by laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS): A feasibility study

Calcium fluoride as a dominating matrix for quantitative analysis by laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS): A feasibility study

TitleCalcium fluoride as a dominating matrix for quantitative analysis by laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS): A feasibility study
Publication TypeJournal Article
Year of Publication2020
AuthorsYanbei Zhu, Jhanis J Gonzalez, Xinyan Yang, George C-Y Chan, Xin He, Robert Kostecki, Xianglei Mao, Richard E Russo, Vassilia Zorba
JournalAnalytica Chimica Acta
Volume1129
Pagination24 - 30
Date Published07/2020
ISSN00032670
Abstract

Calcium fluoride formed by the reaction between ammonium bifluoride and calcium chloride was investigated as a dominating matrix for quantitative analysis by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). Transformation from a solid sample to the calcium fluoride-based matrix permitted quantitative analysis based on calibration standards made from elemental standards. A low abundance stable calcium isotope, i.e. 44Ca+, was monitored as the internal standard for quantitative analysis by LA-ICP-MS. Correlation coefficient factors for multiple elements were obtained with values over 0.999. The results for multiple elements in a certified reference material of soil (NIST SRM 2710a) agreed with the certified values in the range of expanded uncertainty, indicating the present method was valid for quantitation of elements in solid samples.

DOI10.1016/j.aca.2020.07.002
Short TitleAnalytica Chimica Acta
Refereed DesignationRefereed