EN 15111:2007
(Main)Foodstuffs - Determination of trace elements - Determination of iodine by ICP-MS (inductively coupled plasma mass spectrometry)
Foodstuffs - Determination of trace elements - Determination of iodine by ICP-MS (inductively coupled plasma mass spectrometry)
This European Standard specifies an extraction method for the determination of iodine compounds in foodstuffs by inductively coupled plasma mass spectrometry (ICP-MS).
Lebensmittel - Bestimmung von Elementspuren - Bestimmung von Iod mit der ICP-MS (Massenspektrometrie mit induktiv gekoppeltem Plasma)
Produits alimentaires - Dosage des éléments traces - Dosage de l'iode par spectrométrie d'émission avec plasma induit par haute fréquence et spectromètre de masse (ICP-SM)
Živila - Določevanje elementov v sledovih - Določevanje joda v dietetični hrani z ICP-MS (masno spektrometrijo z induktivno sklopljeno plazmo)
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Foodstuffs - Determination of trace elements - Determination of iodine by ICP-MS (inductively coupled plasma mass spectrometry)Produits alimentaires - Dosage des éléments traces - Dosage de l'iode par spectrométrie d'émission avec plasma induit par haute fréquence et spectrometre de masse (ICP-SM)Lebensmittel - Bestimmung von Elementspuren - Bestimmung von Iod mit der ICP-MS (Massenspektrometrie mit induktiv gekoppeltem Plasma)Ta slovenski standard je istoveten z:EN 15111:2007SIST EN 15111:2007en;fr;de67.050Splošne preskusne in analizne metode za živilske proizvodeGeneral methods of tests and analysis for food productsICS:SIST-TS CEN/TS 15111:20051DGRPHãþDSLOVENSKI
STANDARDSIST EN 15111:200701-julij-2007
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 15111March 2007ICS 67.050Supersedes CEN/TS 15111:2005
English VersionFoodstuffs - Determination of trace elements - Determination ofiodine by ICP-MS (inductively coupled plasma massspectrometry)Produits alimentaires - Dosage des éléments traces -Dosage de l'iode par spectrométrie d'émission avec plasmainduit par haute fréquence et spectromètre de masse (ICP-SM)Lebensmittel - Bestimmung von Elementspuren -Bestimmung von Iod mit der ICP-MS(Massenspektrometrie mit induktiv gekoppeltem Plasma)This European Standard was approved by CEN on 21 January 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2007 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15111:2007: E
Results of the inter-laboratory test.11 Bibliography.12
un-dissolved components, the nebulized solution is atomized and ionized in an inductively coupled argon plasma. The ions are extracted from the plasma by a system of sampler and skimmer cones, separated in a mass spectrometer on the basis of their mass/charge ratio and determined using a pulse counting detector system. WARNING — The use of this European Standard may involve hazardous materials, operations and equipment. This European Standard does not purport to address all the safety problems associated with its use. It is the responsibility of the user of this European Standard to establish appropriate safety and health practices and determine the applicability or regulatory limitations prior to use. 4 Reagents 4.1 General The concentration of iodine in the reagents and water used shall be low enough not to affect the results of the determination, e.g. different qualities of TMAH are available. It is important to check, that the iodine content is low enough for the analysis. 4.2 Tetramethylammonium hydroxide (TMAH = (CH3)4N+OH-) solution,
mass concentration ρ = 250 g/l, (mass fraction w = 25 %), suitable for trace analysis with an iodine content of less than 1 µg/l. 4.3 Diluted tetramethylammonium hydroxide (TMAH) solution Dilute TMAH solution for preparing the zero member compensation and calibration solutions, with a concentration to suit that of the sample solution (see 7.3). Prepare a 0,5 % TMAH solution by diluting 1,0 ml of TMAH solution (4.2) to 50 ml with water. 4.4 Stock solutions 4.4.1 General Commercial stock solutions may be used as an alternative to the solutions described below.
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