BS ISO 20649-2015 Infant formula and adult nutritionals Determination of chromium selenium and molybdenum Inductively coupled plasma mass spectrometry (ICP-MS)《婴幼儿配方奶粉和成人营养品 铬 硒 钼的.pdf
《BS ISO 20649-2015 Infant formula and adult nutritionals Determination of chromium selenium and molybdenum Inductively coupled plasma mass spectrometry (ICP-MS)《婴幼儿配方奶粉和成人营养品 铬 硒 钼的.pdf》由会员分享,可在线阅读,更多相关《BS ISO 20649-2015 Infant formula and adult nutritionals Determination of chromium selenium and molybdenum Inductively coupled plasma mass spectrometry (ICP-MS)《婴幼儿配方奶粉和成人营养品 铬 硒 钼的.pdf(20页珍藏版)》请在麦多课文档分享上搜索。
1、BSI Standards PublicationBS ISO 20649:2015Infant formula and adultnutritionals Determinationof chromium, selenium andmolybdenum Inductivelycoupled plasma massspectrometry (ICP-MS)BS ISO 20649:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 20649:2015.The U
2、K participation in its preparation was entrusted to Technical Committee AW/5, Chemical analysis of milk and milk products.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a c
3、ontract. Users are responsible for its correct application. The British Standards Institution 2015. Published by BSI Standards Limited 2015ISBN 978 0 580 90426 4 ICS 67.050 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the
4、authority of the Standards Policy and Strategy Committee on 30 November 2015.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS ISO 20649:2015Infant formula and adult nutritionals Determination of chromium, selenium and molybdenum Inductively coupled plasma mass spectrometr
5、y (ICP-MS)Formules infantiles et produits nutritionnels pour adultes Dtermination de la teneur en chrome, slnium et molybdne Spectromtrie de masse avec plasma couplage inductif (ICP-SM)INTERNATIONAL STANDARDFirst edition2015-11-01Reference numbersISO 20649:2015(E)IDF 235:2015(E)ISO20649IDF235 ISO an
6、d IDF 2015BS ISO 20649:2015ISO 20649:2015(E)IDF 235:2015(E)ii ISO and IDF 2015 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO and IDF 2015, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or
7、 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 ISOs member body in the country of the requester.ISO copyright office International Dairy
8、FederationCh. de Blandonnet 8 CP 401 Silver Building Bd Auguste Reyers 70/B B-1030 BrusselsCH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11 Tel. + 32 2 325 67 40Fax +41 22 749 09 47 Fax + 32 2 325 67 41copyrightiso.org infofil-idf.orgwww.iso.org www.fil-idf.orgBS ISO 20649:2015ISO 20649:201
9、5(E)IDF 235:2015(E)Forewords .iv1 Scope . 12 Principle 13 Reagents and materials . 14 Apparatus . 25 Procedure. 25.1 Sample preparation 25.2 Preparation of the test solution 35.3 Determination . 36 Calculation 47 Method validation . 47.1 Linearity 47.2 Limit of quantification (LOQ) . 57.3 Matrix mat
10、ching with methanol. 57.4 Effects of easily ionizable elements (EIEs) . 57.5 Specificity 57.6 Accuracy 57.7 Precision . 57.8 Ruggedness and robustness 57.9 Reproducibility . 6Annex A (informative) Precision data . 7Bibliography 8 ISO and IDF 2015 All rights reserved iiiContents PageBS ISO 20649:2015
11、ISO 20649:2015(E)ForewordsISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subj
12、ect for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IE
13、C) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be n
14、oted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifyin
15、g any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience o
16、f users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supple
17、mentary informationThe committee responsible for this document is ISO/TC 34, Food products, Subcommittee SC 5, Milk and milk products and the International Dairy Federation (IDF), in collaboration with AOAC INTERNATIONAL. It is being published jointly by ISO and IDF and separately by AOAC INTERNATIO
18、NAL. The method described in this International Standard is equivalent to the AOAC Official Method 2011.19: Chromium, selenium, and molybdenum in infant formula and adult nutritional products, inductively coupled plasma-mass spectrometry.IDF 235:2015(E)iv ISO and IDF 2015 All rights reservedBS ISO 2
19、0649:2015ISO 20649:2015(E)IDF (the International Dairy Federation) is a non-profit private sector organization representing the interests of various stakeholders in dairying at the global level. IDF members are organized in National Committees, which are national associations composed of representat
20、ives of dairy-related national interest groups including dairy farmers, dairy processing industry, dairy suppliers, academics and governments/food control authorities.ISO and IDF collaborate closely on all matters of standardization relating to methods of analysis and sampling for milk and milk prod
21、ucts. Since 2001, ISO and IDF jointly publish their International Standards using the logos and reference numbers of both organizations.Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. IDF shall not be held responsible for identify
22、ing any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience
23、 of users and does not constitute and endorsement.ISO 20649 | IDF 235 was prepared by the IDF Standing Committee on Analytical Methods for Composition and the ISO Technical Committee ISO/TC 34, Food products, Subcommittee SC 5, Milk and milk products, in collaboration with AOAC INTERNATIONAL. It is
24、being published jointly by ISO and IDF, and separately by AOAC INTERNATIONAL. The method described in this International Standard is equivalent to the AOAC Official Method 2011.19: Chromium, selenium, and molybdenum in infant formula and adult nutritional products, inductively coupled plasma-mass sp
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