Publications

Measurement of δ34S by MC-ICP-MS in beer: Evaluation of the use of 30Si/29Si to correct for mass bias and matrix effects

This poster relates to work carried out under project I3 – Isotope ratio mass spectrometry to establish authenticity and origin of goods of the NMS Chemical and Biological Metrology programme.

The stable isotopic profile of a substance is acquired during its synthesis and it is unique to its history and origin. When two separate samples are chemically the same and have identical isotopic profiles, there is a high degree of certainty that both samples originate from the same source. With the increasing globalisation of brands available, rapid screening authenticity techniques to assist in brand protection and source identification would be beneficial to the food and beverage industry.

This poster describes the use of MC-ICP-MS for simultaneous measurement of sufur and silicon stable isotopes in a range of beer samples and was presented at the 14^th Biennial National Atomic Spectroscopy Symposium (BNASS) held at the University of Sussex on 7^th-9^th July, 2008.

To download this poster click on the link below (you must be logged in). For further information about topics covered by the poster, please contact the NMS helpdesk at LGC.