Direct sector field ICP-MS determination of metal impurities in detonation nanodiamond |
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| Affiliation: | 1. Australian Centre for Research on Separation Science (ACROSS), School of Chemistry, University of Tasmania, Private Bag 75, Hobart, Tasmania 7001, Australia;2. Central Science Laboratory, University of Tasmania, Private Bag 74, Hobart, Tasmania 7001, Australia;1. Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany;2. TU Dresden, Institute of Power Engineering, 01069 Dresden, Germany;1. Institut Charles Gerhardt (ICG), UMR-5253, CNRS, UM, ENSCM, Ingénierie et Architectures Macromoléculaires (IAM), Matériaux Avancés pour la Catalyse et la Santé (MACS), Ecole Nationale Supérieure de Chimie de Montpellier, 8 rue de l’Ecole Normale, 34296 Montpellier Cedex 5, France;2. Institut de Chimie Séparative de Marcoule (ICSM), UMR-5257, CEA, CNRS, UM, ENSCM, Centre de Marcoule, BP 17171, 30207 Bagnols sur Cèze Cedex, France;3. Institut Européen des Membranes, UMR-5635, CNRS, ENSCM, UM, CC047, Université de Montpellier, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France;4. Department of Chemical Engineering, University of Cape Town, Private Bag X3, Rondebosch 7701, South Africa;5. Quantum Nanoscience, Kavli Institute of Nanoscience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, The Netherlands;6. Università di Messina, ERIC aisbl and CASPE/INSTM, Sect. Industrial Chemistry, V.le F. Stagno D’Alcontres 31, 98166 Messina, Italy;1. Department of Chemical Engineering, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada;2. Sheridan Institute of Technology, 1430 Trafalgar Road, Oakville, Ontario L6L2L1, Canada;1. Graduate Major in Nuclear Engineering, Tokyo Institute of Technology, Japan;2. Laboratory for Advanced Nuclear Energy, Institute of Innovative Research, Tokyo Institute of Technology, Japan |
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| Abstract: | A simple, rapid, sensitive and accurate method for the determination of metal impurities in detonation nanodiamond (DND), based upon the direct aspiration of aqueous suspensions of nanodiamond into a sector field inductively coupled plasma mass spectrometer (ICP-MS) is proposed. Quantitative release, atomisation and ionisation of the nanodiamond coated and encased elements, within the plasma, and their detection free from spectral interference, was confirmed by comparing results obtained from the direct ICP-MS analysis of aqueous suspensions with results from the ICP-MS analysis of the acidic digests of pre-ashed DND, obtained through DND combustion in air at 723 K for 48 h. The developed direct method was capable of the quantification of more than 30 elements at concentration levels of 10?8 wt.%, with acceptable levels of precision and accuracy, from an aqueous suspension of just 0.1 mg mL?1 DND. |
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