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Zoekresultaten - 96 results
Fast and discriminative CoSYPS detection system of viable Salmonella spp. and Listeria spp. in carcass swab samples.
namely swab sample enrichment, SYBR ®Green qPCR detection of Salmonella spp. and Listeria spp., isolation and confirmation of the detected strain, was validated on beef carcass swabs. To perform the ...
Comparative study of seven commercial kits for human DNA extraction from urine samples suitable for DNA biomarker-based public health studies.
yield were also tested for the presence of PCR inhibitors. Further comparisons were performed regarding the sampling time and the storage conditions. Finally, as a proof-of-concept, an important gene ...
Validation of a sensitive DNA walking strategy to characterise unauthorised GMOs using model food matrices mimicking common rice products
characterising the transgene flanking regions, using DNA walking. Here, the DNA walking performance has been thoroughly tested for the first time, regarding the targeted DNA quality and quantity. Several assays, ...
The European COPHES/DEMOCOPHES project: towards transnational comparability and reliability of human biomonitoring results.
all over the world served as reference laboratories. Web conferences after each external quality assessment exercise functioned as a new and effective tool to improve analytical performance, to build ...
Determination of caramel colorants' by-products in liquid foods by ultra-high-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS).
liquid foods, an ultra-high-performance liquid chromatography-tandem mass spectrometry (UPLC- MS / MS) method was developed and sample preparation was divided into two analytical strategies depending on ...
Lessons learned from a textbook outbreak: EHEC-O157:H7 infections associated with the consumption of raw meat products, June 2012, Limburg, Belgium.
O157: H7 infections were reported to the public health authorities of Limburg. METHODS: We performed a case-control study, a trace back/forward investigation and compared strains isolated from human cases ...
Multi-dye residue analysis of triarylmethane, xanthene, phenothiazine and phenoxazine dyes in fish tissues by ultra-performance liquid chromatography-tandem mass spectrometry.
ultra-performance liquid chromatography-tandem mass spectrometry. Samples were extracted with acetonitrile, followed by an oxidation step using 2,3-dichloro-5,6-dicyanobenzoquinone. Further clean-up was performed by ...
Characterization of suspected illegal skin whitening cosmetics.
EU market. A newly developed screening method using ultra high performance liquid chromatography-time off flight-mass spectrometry allows routine analysis of suspected products. 163 suspected skin ...
An innovative and integrated approach based on DNA walking to identify unauthorised GMOs
GMO s containing a pCAMBIA family vector, frequently present in transgenic plants. This integrated approach is performed in two successive steps on Bt rice grains. First, the potential presence of ...
Dietary exposure of the Belgian adult population to non-dioxin-like PCBs.
A dietary exposure assessment was performed, combining ndl- PCB s levels found in food with data from the national food consumption survey of 2004. Fish and fish products were the dominating food group in ...