Zoekresultaten - 151 results

Quantitative characterization of agglomerates and aggregates of pyrogenic and precipitated amorphous silica nanomaterials by transmission electron microscopy.

and agglomerates. A method based on transmission electron microscopy (TEM), to visualize the NM and on image analysis, to measure detected features quantitatively, was assessed for its capacity to ...

Potential impact of fertilization practices on human dietary intake of dioxins in Belgium.

stage, including crop fertilization. Therefore, we developed a simple method for estimating the introduction of dioxins in the food chain according to various fertilization practices. Using dioxin’s ...

Development and inter-laboratory validation study of an improved new real-time PCR assay with internal control for detection and laboratory diagnosis of African swine fever virus.

Marie-Frédérique; Bishop, Richard P; Arias, Marisa; F. Koenen Source: J Virol Methods, Volume 178, Issue 1-2, p.161-70 (2011) Keywords: Actins African Swine Fever African Swine Fever Virus Animals Capsid Proteins ...

Cross-reactivity of some commercially available deoxynivalenol (DON) and zearalenone (ZEN) immunoaffinity columns to DON- and ZEN-conjugated forms and metabolites.

a semi-quantitative multi-mycotoxin ultra-performance liquid chromatography-tandem mass spectrometry method. The DON IAC s showed cross-reactivity for nearly all DON derivatives tested. The ZEN IAC s showed limited ...

Methodologies for Salmonella enterica subsp. enterica subtyping: gold standards and alternatives.

Bacterial Typing Techniques Epidemiologic Methods Humans Salmonella enterica Salmonella Infections Salmonella Infections, Animal Abstract: For more than 80 years, subtyping of Salmonella enterica has been ...

Nucleotide polymorphism-based single-tube test for robust molecular identification of all currently described Brucella species.

methods described during the last 20 years to identify Brucella, multiplexed amplification methods offer the cheapest and simplest technical solution for molecular identification. However, one disadvantage ...

Heterozygous inactivation of the Na/Ca exchanger increases glucose-induced insulin release, β-cell proliferation, and mass.

NCX1. RESEARCH DESIGN AND METHODS: Biologic and morphologic methods (Ca(2+) imaging, Ca(2+) uptake, glucose metabolism, insulin release, and point counting morphometry) were used to assess β-cell function ...

Occurrence and diversity of free-living protozoa on butterhead lettuce.

middle leaves estimated by the Most Probable Number method ranged from 9.3 × 10(2) MPN /g to 2.4 × 10(5) MPN /g leaf, with flagellates (92 MPN /g to 2.4 ×10(5) MPN /g) being more abundant than amoebae ...

Deoxynivalenol loads in matched pair wheat samples in Belgium: comparison of ELISA VERATOX kit against liquid chromatography.

methods (LC- MS / MS and HPLC- UV) used by two other laboratories was carried out using biometrical and sum of ranking differences (SRD) procedures. The Lin’s Concordance correlation coefficients, the ...

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