ISO/TS TECHNICAL SPECIFICATION 13278 Second edition 2017-11-15 Nanotechnologies Determination of elemental impurities in samples of carbon nanotubes using inductively coupled plasma mass spectrometry Nanotechnologies Dosage des impuretés dans les nanotubes en carbone (CNTs) par spectroscopie de masse a plasma induit (ICP-MS) Reference number A ISO/TS13278:2017(E) ISO @ IS0 2017 IS0/TS 13278:2017(E) COPYRIGHT PROTECTED DOCUMENT @ IS0 2017, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. IsO copyright office Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org ii @ IS0 2017 - All rights reserved IS0/TS 13278:2017(E) Contents Page Foreword V Introduction. .vi 1 Scope. 1 2 Normative references. .1 3 Terms, definitions, symbols and abbreviations 1 3.1 Terms and definitions. 3.2 Symbols and abbreviations. 2 4 Samples and reagents 3 4.1 General 3 4.2 Samples. 3 4.3 Reagents. 3 4.3.1 General 3 4.3.2 Purity of acids 3 4.3.3 Purity of reagents. 3 4.3.4 Purity of water. 3 4.4 Stock solutions. 3 4.4.1 General 3 4.4.2 ICP-MS calibration standard stock solution No. 1 3 4.4.3 ICP-MS calibration standard stock solution No. 2 4 4.4.4 ICP-MS calibration standard stock solution No. 3. 4 4.5 Stock spike solutions 4 4.5.1 General. 4 4.5.2 Stock spike solution No. 1 4 4.5.3 Stock spike solution No. 2 4 4.6 Stock internal standard solutions. 4 4.6.1 General 4.6.2 Internal standard No. 1 4 4.6.3 Internal standard No. 2 4 4.6.4 Internal standard No. 3 4 4.6.5 Internal standard No. 4 4 4.6.6 Internal standard No.5 5 4.7 Stock standard tuning solutions. 5 4.7.1 General. 5 4.7.2 Standard tuning solution No. 1 5 4.7.3 Standard tuning solution No. 2 5 4.7.4 Standard tuning solution No. 3 5 4.7.5 Standard tuning solution No. 4 5 4.7.6 Standard tuning solution No. 5. 5 5 Apparatus. .5 6 Sample pretreatment. 5 6.1 Sample preparation for ICP-MS analysis 5 6.2 Wet digestion under high pressure 6 6.3 Combined dry ashing and acid digestion 7 6.4 Microwave-assisted digestion. 7 7 Experimental procedures .8 7.1 Instrumental settings for ICP-MS .8 7.2 Interferences in ICP-MS. 8 7.3 Isotope selection. 9 7.4 Standard calibration curve 9 7.5 Method recovery evaluation using standard addition .9 7.6 The use of internal standards in ICP-MS. .9 @ IS0 2017 - All rights reserved ii