Detaild Report on the Second European Inter-Laboratory Comparison Study on the Determination of Acrylamide in Food. Acrylamide in Crispbread Samples.

Abstract not availableJRC.D-Institute for Reference Materials and Measurements (Geel

Analytical Approaches for Food Authentication.

Abstract not availableJRC.D-Institute for Reference Materials and Measurements (Geel

Reference Measurement Systems for Food Analysis. CCQM Focus Group Meeting (13.09.2004)

Abstract not availableJRC.D-Institute for Reference Materials and Measurements (Geel

Method Validation for Detection and Quantification of Cocoa Butter Equivalents in Cocoal Butter and Plain Chocolate.

Abstract not availableJRC.D-Institute for Reference Materials and Measurements (Geel

Reference Materials for the Monitoring of the Aquatic Environment. A Review with Special Emphasis on Organic Priority Pollutants.

Abstract not availableJRC.D-Institute for Reference Materials and Measurements (Geel

Need for Validated Methods and Reference Materials to Detect Peanut Allergens in Food Products.

Abstract not availableJRC.D-Institute for Reference Materials and Measurements (Geel

Detection and Quantification of Cocoa Butter Equivalents in Cocoa Butter and Plain Chocolate by GLC of Triglycerides.

Abstract not availableJRC.D-Institute for Reference Materials and Measurements (Geel

Aflatoxin M1 in Milk Powders: Processing, Homogeneity and Stability Testing of Certified Reference Materials.

Abstract not availableJRC.D-Institute for Reference Materials and Measurements (Geel

The Certification of the Mass Fraction of Aflatoxin M1 in Whole Milk Powders: BCR-282R (zero level), BCR-283R (low level), BCR-284R (high level).

Abstract not availableJRC.D-Institute for Reference Materials and Measurements (Geel

Report on the First Intercomparison

Ulberth, F. et al.The aim of the first intercomparison was twofold. Firstly, to select, stabilise and bottle suitable materials containing ca. 1 %, 5 % and 30 % total trans fatty acids (TFA) and demonstrate that packaging and storage does not affect oil composition, and secondly, to demonstrate that participating laboratories are able to achieve sufficient conformity of test results. Stabilising oil samples with tert. butylhydroquinone (250 mg/kg) and packaging in inert atmosphere in amber glass ampoules resulted in homogeneous and stable lots of preliminary test materials. Analytical precision of chromatographic methods to determine trans fatty acids (TFA) was acceptable (RSD(R) 1 g/100 g, but for levels 40 %). Misidentification of peaks and inconsistent peak integration practices are considered to be the major reasons for deviating results reported by the participants. Results obtained by chromatographic methods were in close agreement with those produced by spectroscopy (IR and NMR), thus proving that the applied chromatographic methods were not systematically biased. The intercomparison has to be repeated with new sets of samples. Special emphasis will be placed on the correct identification of trans polyenes in order to improve precision for low levels of TFA. To facilitate correct identification, the Co-ordinator will distribute equivalent chain length data for TFA.Contract no. SMT4-CT97-2144Peer Reviewe