Résultats de la recherche - 9 results

Development of strain-level shotgun metagenomics approaches to detect and characterize microbiological contaminants in the context of food safety

Ultimately, a validation of the method is still necessary in order to obtain a precise limit of detection based on the analysis of a large dataset of samples. Moreover, other technologies can still be ...

A Summer of Cyanobacterial Blooms in Belgian Waterbodies: Microcystin Quantification and Molecular Characterizations

sequencing. The cyanobacterial diversity for two water samples was characterized with amplicon sequencing. Microcystins were detected above limit of quantification (LOQ) in 68 water samples, and the World ...

In utero exposure to parabens and early childhood BMI z-scores – Associations between placental ethyl paraben, longitudinal BMI trajectories and cord blood metabolic biomarkers

annotated to GGT and longitudinal measurements of BMI z-scores were investigated with adjusted linear mixed models. Results: The geometric means of placental MeP, EtP, PrP, and BuP levels above the limit of ...

A systematic evaluation of Flow Field Flow Fractionation and single-particle ICP-MS to obtain the size distribution of organo-mineral iron oxyhydroxide colloids.

detection limit for FeOx of about 32-47 nm. The distribution of hydrodynamic diameters of goethite particles detected with FlFFF, NTA and DLS were similar but the values were twice as large as the Fe cores of ...

Evaluation of a TEM based Approach for Size Measurement of Particulate (Nano)materials.

study included an assessment of the limit of detection, working range, selectivity, precision, trueness, robustness, and ruggedness. An uncertainty that was associated to intermediate precision in the ...

Evaluation of a TEM based Approach for Size Measurement of Particulate (Nano)materials

agglomeration state. The measurement of the median value of the minimal external particle diameter distribution was intra-laboratory validated. The validation study included an assessment of the limit of ...

A molecular approach for the rapid, selective and sensitive detection of Exophiala jeanselmei in environmental samples: development and performance assessment of a real-time PCR assay

selectivity (100 %), PCR efficiency (95.5 %), dynamic range and repeatability of this qPCR assay were subsequently evaluated. The limit of detection for this qPCR assay was determined to be 1 copy of genomic ...

Scientific opinion on the risk for public and animal health related to the presence of sterigmatocystin in food and feed

Dietary exposure Dna effect effects European European Commission exposure exposure assessment fat feed food Food Chain Food Safety health Human human health IS Kidney Less Limit of Detection Liver Lung ...

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