• Home
  • News
  • New method for determination of isotope dilution in foodstuffs

New method for determination of isotope dilution in foodstuffs

NMKL method No. 202, "Methylmercury: determination by isotope dilution GC-ICPMS in foodstuffs", describes the quantitative determination of mono-methylmercury (MMHg) (10-5000 µg/kg dry weight) in mainly marine biota samples. The principle of the method is that the sample is spiked with an appropriate amount of Hg isotope-enriched MMHg and extracted. After derivatisation the sample is analysed using GC-ICPMS. The GC separates the different mercury species before MMHg is atomised and ionised in the high temperature of the ICP. The ions are extracted from the plasma, and in a mass spectrometer the ions are separated by their mass/charge ratio.

Print

Info

NordVal International

NordVal International is an independent third party that evaluates the quality characteristics and applications of alternative chemical and microbiological methods in the analysis of food, water, feed and environmental samples.

Go to NordVal

Info

Subscriptions

NMKL offers different subscriptions; procedures and methods might be downloaded from this website or be forwarded as PDF-files by email. NMKL subscriptions can be paid by credit card or by invoice.

GO TO SUBSCRIPTIONS

Info

Webshop

The methods are in either Danish, Swedish or Norwegian combined with English. Most methods are also available in a Finnish/English version. All methods are in the PDF format and can be downloaded or forwarded by email. 

Go to webshop

Online subscriptions

Do you have questions or need more information about our products?

Contact information

Contact us by phone 
Call +45 4019 1472

Send us an email