background image
- Practical Guide -
Page 94 of 153
ANNEX II
Safety and quality of food contact materials
(
http://cpf.jrc.it/webpack/downloads/AIR%20941025%20Report-link%20from%20PG.doc
)
Part 1: Evaluation of analytical strategies to introduce migration measurement into
good manufacturing practice
A. Feigenbaum
a
, D. Scholler
a
, J. Bouquant
b
, G. Brigot
c
, D. Ferrier
d
, R. Franz
e
, L. Lillemark
f
,
A. M. Riquet
g
, J. H. Petersen
f
, B. Van Lierop
h
, N. Yagoubi
d
SUMMARY
Migration of packaging constituents into food can raise doubts about food safety. This paper
describes conclusions of a research project conducted in the framework of the EU AIR
research programme (AIR CT94-1025). It aims to facilitate introduction of migration control
into good manufacturing practice and into enforcement policies. Representative polymer
classes were defined, according to chemical structure, technological function, and importance
on the market and behaviour in migration. These classes can be characterised by analytical
methods. Analytical techniques were investigated for potential migrant identification. High
temperature gas chromatography is a powerful method and
1
H magnetic resonance provides a
convenient fingerprint of a plastic material.
Volatile compounds are characterised by head-space techniques. It is essential to differentiate
volatile compounds desorbed and those generated during the thermal desorption. For metal
trace analysis, the microwave mineralisation followed with Absorption Atomic technique
seems to be powerful. These different techniques are introduced in a testing scheme, which
can be adapted both for industrial control and for enforcement laboratories. Guidelines will
be proposed in the second part of this paper.