Vaessen HAMG ,
Sahertian ET ,
Nieuwland RJA ,
Ooik A van ,
Terwel L
25 p
in Dutch
1993
Toon Nederlands
English Abstract Triggered by recent problems in Switzerland due to high
NDMA-levels in foreign beer, we analysed 25 beer samples for this compound
from Dutch retail outlets. Three beers were from Dutch breweries, all the
other beers were imported. The method of analysis applied was a
modification of SOP nr ARO/039 Revision 2. Quality assurance included
replicate analyses of 7 samples and recovery experiments for 7 samples at
the spiking level of 1 mug NDMA per kg of beer. Average recovery for these
experiments was 89% ; range 69-103%. Mean NDMA level found for beer in
this study was 0.3 mug/kg (N=25) ; range 0.02 - 1.5 mug/kg. NDMA level
of four beers from this study was in excess of the Swiss legal standard for
beer of 0.5 mug. NDMA per kg. These were three Mexican beers with
NDMA-levels of 1.2 to 1.5 mug/kg and a German beer with an NDMA content of
0.8 mug/kg. NDMA levels found in this study for foreign beer are very
similar to the NDMA levels found already in 1981 for 10 foreign beer
samples.
