Zoekresultaten - 69 results

Estimation of the Uncertainties Related to the Measurement of the Size and Quantities of Individual Silver Nanoparticles in Confectionery.

Single particle ICP-MS Abstract: E174 (silver) is a food additive that may contain silver nanoparticles (AgNP). Validated methods are needed to size and quantify these particles in a regulatory context. ...

Simultaneous determination of parabens, bisphenols and alkylphenols in human placenta by ultra-high performance liquid chromatography-tandem mass spectrometry

liquid chromatography – tandem mass spectrometry (UHPLC- MS / MS) method for the simultaneous determination of four parabens (methyl-, ethyl-, propyl-, and butyl-paraben (MeP, EtP, PrP, BuP), four ...

Development and performance assessment of a luminex xMAP® direct hybridization assay for the detection and identification of indoor air fungal contamination.

identified with the classical method were also detected with the xMAP® assay, however in a shorter time frame. These results demonstrate that the Luminex xMAP® fungal assay developed in this study could ...

Molecular Subtyping of Salmonella Typhimurium with Multiplex Oligonucleotide Ligation-PCR (MOL-PCR).

Publication Type: Peer reviewed scientific article Authors: Wuyts, Véronique; Wesley Mattheus; Nancy Roosens; Marchal, Kathleen; Sophie Bertrand; Sigrid De Keersmaecker Source: Methods Mol Biol, ...

Model-Based Classification for Digital PCR: Your Umbrella for Rain.

reduces accuracy, the uncertainty of this classification is typically ignored. We introduce a model-based clustering method to estimate the probability that the target is present (absent) in a partition ...

Discrimination of three genetically close Aspergillus species by using high resolution melting analysis applied to indoor air as case study.

important. To avoid problems linked to culture-dependent protocols, molecular methods are increasingly being proposed as an alternative. Among these molecular methods, the polymerase chain reaction (PCR) and ...

Matrix-Assisted Laser Desorption Ionization-Time of Flight Mass Spectrometry for Combined Species Identification and Drug Sensitivity Testing in Mycobacteria.

results to current gold-standard methods. Drug susceptibility was tested for rifampin, isoniazid, linezolid, and ethambutol (M. tuberculosis, n = 39), and clarithromycin and rifabutin (NTM, n = 33). ...

Genetic elements associated with antimicrobial resistance among avian pathogenic Escherichia coli.

determinants implicated in antimicrobial resistance among APEC isolated from different broiler farms in Egypt. METHODS: A total of 116 APEC were investigated by serotyping, antimicrobial resistance patterns to ...

Nicotine Dependence and Urinary Nicotine, Cotinine and Hydroxycotinine Levels in Daily Smokers.

cigarettes per day among biomarker concentrations and individual FTND  items. METHODS: Urine samples and questionnaire data of 239 daily smokers were obtained. Nicotine, cotinine and hydroxycotinine urinary ...

Development of a Luminex xTAG® assay for cost-effective multiplex detection of β-lactamases in Gram-negative bacteria.

Gram-Negative Bacteria Humans Multiplex Polymerase Chain Reaction RNA, Ribosomal, 16S Abstract: OBJECTIVES: The objective of this study was to design and validate a genotyping method for multiplex identification ...

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