Publications Office of the EU
Certification of reference materials of cotton seed powder with different mass fractions of the cotton event GHB119 certified reference materials ERM-BF428 (ERM-BF428a, ERM-BF428b, ERM-BF428c)
DisplayCustomHeader
MyPortal
suomi
BasketSummary
Web Content Display (Global)
Publication Detail Actions Portlet

Näytönluku

Publication Detail Actions Portlet
 Käyttäjän arvosana
custom-survey-notification
Publication Detail Portlet

Publication detail

Home

Certification of reference materials of cotton seed powder with different mass fractions of the cotton event GHB119 certified reference materials ERM-BF428 (ERM-BF428a, ERM-BF428b, ERM-BF428c)

Julkaisun metatiedot

This report describes the processing and certification of three cotton seed powder Certified Reference Materials (CRMs) containing different mass fractions of genetically modified (GM) GHB119 cotton (ERM-BF428a, b, c). The materials were processed and certified in 2008/2009 by the European Commission, Joint Research Centre, Institute for Reference Materials and Measurements (IRMM, Geel, Belgium), according to the principles of ISO Guide 34. The three CRMs have been accepted as European Reference Material (ERM) after peer evaluation by the partners of the European Reference Materials consortium. GM seeds of GHB119 cotton and of a non-GM cotton variety were dried and ground to obtain GM and non-GM base powders. A non-GM pure material was prepared. Gravimetric mixtures of non-GM and GM cotton powder were prepared by dry-mixing, a first material by mixing non-GM and GM cotton powder and a second one by further dilution of the mixture with non-GM cotton powder. The certified values of these CRMs were calculated from the gravimetric preparations, taking into account the purity of the base materials and their water mass fraction. The certified values were confirmed by event-specific real-time PCR as independent verification method (measurements within the scope of accreditation to ISO/IEC 17025). The CRMs are intended for the quality control or calibration of methods for the quantification of GHB119 cotton in food and feed. The CRMs are available in glass vials containing 1 g of dried cotton seed powder closed under argon atmosphere. The minimum amount of sample to be used is 500 mg.
Näytä lisää
Näytä vähemmän
ISSN 1018-5593
ISBN 978-92-79-14553-7
DOI 10.2787/1992
Luettelonumero LA-NA-24110-EN-C
PDF
ISSN 1018-5593 ISBN 978-92-79-14553-7 DOI 10.2787/1992 Luettelonumero LA-NA-24110-EN-C
  • Released on EU publications website:
Publication Viewer

Tiedoston katseluohjelma

Pop up window annotations