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98428 - Tabersky et al_Development and characterization.pdf (545.93 kB)

Development and characterization of custom-engineered and compacted nanoparticles as calibration materials for quantification using LA-ICP-MS

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posted on 2023-05-18, 07:24 authored by Tabersky, D, Luechinger, NA, Rossier, M, Reusser, E, Hametner, K, Aeschlimann, B, Frick, DA, Halim, SC, Thompson, J, Leonid Danyushevsky, Gunther, D
The flame spray technique was used to produce a nano-material with a customized composition. Liquid organic precursors of Si, Ca, Ti, Mg, Fe, and Al in a concentration similar to the matrix of the well-known NIST SRM 610 glass standard were mixed with a selection of rare earth elements (Ce, Gd, Ho, and Tb), precious metals (Ag, Au, Pd, Pt, Rh, and Ru) and Pb at concentrations of approx. 400–500 mg kg−1. The liquid precursor mixture was sprayed and collected as nanopowder, compacted to pellets and analyzed by solution and laser-ablation inductively coupled plasma mass spectrometry. The bulk composition of the material was determined in several aliquots of the powder, either 25 mg or 50 mg. Electron microprobe analyses were carried out to further characterize the major element composition of the pressed nano-material. The pellet was ablated using different laser ablation systems with an aim of assessing the micro-scale homogeneity of the produced material. The manufactured material is homogeneous for major elements and REE's similar to the NIST glass (<5% RSD). However, the distribution of the PGE's showed some larger spatial variation in the order of <7.5%. In addition it is shown that contamination during production leads to heterogeneous distribution of Pb and Ag. Based on the results achieved for Ru, Rh, Pd, Au, Pt, Mg, Ti, and Fe, which are either absent or not available in sufficient concentration levels in NIST glass, it is demonstrated that flame spray synthesis allows production of suitable customized matrix-matched calibration materials for micro-analytical techniques.

Funding

Australian Research Council

AMIRA International Ltd

ARC C of E Industry Partner $ to be allocated

Anglo American Exploration Philippines Inc

AngloGold Ashanti Australia Limited

Australian National University

BHP Billiton Ltd

Barrick (Australia Pacific) PTY Limited

CSIRO Earth Science & Resource Engineering

Mineral Resources Tasmania

Minerals Council of Australia

Newcrest Mining Limited

Newmont Australia Ltd

Oz Minerals Australia Limited

Rio Tinto Exploration

St Barbara Limited

Teck Cominco Limited

University of Melbourne

University of Queensland

Zinifex Australia Ltd

History

Publication title

Journal of Analytical Atomic Spectrometry

Volume

29

Issue

6

Pagination

955-962

ISSN

0267-9477

Department/School

School of Natural Sciences

Publisher

Royal Soc Chemistry

Place of publication

Thomas Graham House, Science Park, Milton Rd, Cambridge, England, Cambs, Cb4 0Wf

Rights statement

Copyright 2014 Royal Society of Chemistry

Repository Status

  • Open

Socio-economic Objectives

Expanding knowledge in the earth sciences

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    University Of Tasmania

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