ISO-15753-2006.pdf
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1、 Reference number ISO 15753:2006(E) ISO 2006 INTERNATIONAL STANDARD ISO 15753 First edition 2006-09-01 Animal and vegetable fats and oils Determination of polycyclic aromatic hydrocarbons Corps gras dorigines animale et vgtale Dtermination des hydrocarbures aromatiques polycycliques Copyright Intern
2、ational Organization for Standardization Provided by IHS under license with ISO Licensee=Hong Kong Polytechnic Univ/9976803100 Not for Resale, 04/17/2007 09:44:56 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 15753:2006(E) PDF disclaimer This PDF file may contain embe
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5、were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO 2006 All rights reserved. Unless otherwise spec
6、ified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office C
7、ase postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2006 All rights reserved Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Hong Kong Polytechni
8、c Univ/9976803100 Not for Resale, 04/17/2007 09:44:56 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 15753:2006(E) ISO 2006 All rights reserved iii Contents Page Foreword iv 1 Scope . 1 2 Normative references. 1 3 Terms and definitions. 1 4 Principle. 2 5 Reagents and
9、materials . 2 6 Apparatus 3 7 Sampling 4 8 Sample preparation 5 9 Procedure for determination of PAHs from fats and oils: General method . 5 9.1 Preliminary remarks . 5 9.2 Blank 5 9.3 Determination of recovery values (without matrix). 5 9.4 Extraction (liquid/liquid extraction) 6 9.5 Purification o
10、n C18-bonded phase cartridge (solid/liquid extraction) 6 9.6 Purification on Florisil-bonded phase cartridge (solid/liquid extraction). 6 10 Procedure for determination of PAHs from fats and oils: Method specific for coconut oil . 7 10.1 First extraction (liquid/liquid extraction) 7 10.2 Second extr
11、action (liquid/liquid extraction). 8 10.3 Purification on C18-bonded phase cartridge (solid/liquid extraction) 8 10.4 Purification on Florisil-bonded phase cartridge (solid/liquid extraction). 8 11 High-performance liquid chromatography (HPLC) . 9 11.1 Operating conditions 9 11.2 Detection parameter
12、s. 10 11.3 Analysis of samples and standards 11 11.4 Confirmation of the presence of PAHs. 12 12 Expression of results . 12 13 Precision 12 13.1 Interlaboratory test. 12 13.2 Repeatability 13 13.3 Reproducibility 13 14 Test report . 13 Annex A (informative) Recovery values, flow charts, chromatogram
13、s and injection sequences. 14 Annex B (informative) Results of the interlaboratory test . 19 Bibliography. 22 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Hong Kong Polytechnic Univ/9976803100 Not for Resale, 04/17/2007 09:44:56 MDTNo repro
14、duction or networking permitted without license from IHS -,-,- ISO 15753:2006(E) iv ISO 2006 All rights reserved Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards
15、 is normally carried out through ISO technical committees. Each member body interested in a subject 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 p
16、art in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to
17、 prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility t
18、hat some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 15753 was prepared by Technical Committee ISO/TC 34, Food products, Subcommittee SC 11, Animal and vegetable fats and oils. Copyright In
19、ternational Organization for Standardization Provided by IHS under license with ISO Licensee=Hong Kong Polytechnic Univ/9976803100 Not for Resale, 04/17/2007 09:44:56 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISO 15753:2006(E) ISO 2006 All right
20、s reserved 1 Animal and vegetable fats and oils Determination of polycyclic aromatic hydrocarbons 1 Scope This International Standard describes two methods for the determination of 15 polycyclic aromatic hydrocarbons (PAHs) in animal and vegetable fats and oils: a general method, and a method specif
21、ic for coconut oil and vegetable oils with short-chain fatty acids. These methods are not quantitative for the very volatile compounds such as naphthalene, acenaphthene and fluorene. Due to interferences provided by the matrix itself, palm oil and olive pomace oil cannot be analysed using this metho
22、d. The quantification limit is 0,2 g/kg for almost all compounds analysed, except for fluoranthene and benzo(g,h,i)perylene where the quantification limit is 0,3 g/kg, and indeno(1,2,3-c,d)pyrene where the quantification limit is 1 g/kg. 2 Normative references The following referenced documents are
23、indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 661, Animal and vegetable fats and oils Preparation of test sample 3 Terms and defin
24、itions For the purposes of this document, the following terms and definitions apply. 3.1 polycyclic aromatic hydrocarbon PAH compound that contains two or more condensed (fused) aromatic hydrocarbon rings and the content of which can be determined according to the method specified in this Internatio
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