This document provides methods for the determination of residual elements other than carbon in samples of single-wall carbon nanotubes (SWCNTs) and multiwall carbon nanotubes (MWCNTs) using inductively coupled plasma mass spectrometry (ICP-MS).<\/p>\n
The purpose of this document is to provide optimized digestion and preparation procedures for SWCNT and MWCNT samples in order to enable accurate and quantitative determinations of elemental impurities using ICP-MS.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 2<\/td>\n | National foreword <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | Foreword <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | Introduction <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 1 Scope 2 Normative references 3 Terms, definitions, symbols and abbreviations 3.1 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 3.2 Symbols and abbreviations <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 4 Samples and reagents 4.1 General 4.2 Samples 4.3 Reagents 4.3.1 General 4.3.2 Purity of acids 4.3.3 Purity of reagents 4.3.4 Purity of water 4.4 Stock solutions 4.4.1 General 4.4.2 ICP-MS calibration standard stock solution No. 1 <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 4.4.3 ICP-MS calibration standard stock solution No. 2 4.4.4 ICP-MS calibration standard stock solution No. 3 4.5 Stock spike solutions 4.5.1 General 4.5.2 Stock spike solution No. 1 4.5.3 Stock spike solution No. 2 4.6 Stock internal standard solutions 4.6.1 General 4.6.2 Internal standard No. 1 4.6.3 Internal standard No. 2 4.6.4 Internal standard No. 3 4.6.5 Internal standard No. 4 <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 4.6.6 Internal standard No. 5 4.7 Stock standard tuning solutions 4.7.1 General 4.7.2 Standard tuning solution No. 1 4.7.3 Standard tuning solution No. 2 4.7.4 Standard tuning solution No. 3 4.7.5 Standard tuning solution No. 4 4.7.6 Standard tuning solution No. 5 5 Apparatus 6 Sample pretreatment 6.1 Sample preparation for ICP-MS analysis <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 6.2 Wet digestion under high pressure <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 6.3 Combined dry ashing and acid digestion 6.4 Microwave-assisted digestion <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 7 Experimental procedures 7.1 Instrumental settings for ICP-MS 7.2 Interferences in ICP-MS <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 7.3 Isotope selection 7.4 Standard calibration curve 7.5 Method recovery evaluation using standard addition 7.6 The use of internal standards in ICP-MS <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 8 Data analysis and interpretation of results 8.1 Calculation of elemental impurity mass fraction in test sample 8.2 Calculation of the spike (method) recovery 9 Uncertainty estimation <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | 10 Test report <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | Annex A (informative) Example of determination of elemental impurities in carbon nanotubes <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Nanotechnologies. Determination of elemental impurities in samples of carbon nanotubes using inductively coupled plasma mass spectrometry<\/b><\/p>\n |