Search results - 132 results
A simple multi-residue method for the determination of pesticides in fruits and vegetables using a methanolic extraction and ultra-high-performance liquid chromatography-tandem mass spectrometry: optimization and extension of scope.
guidelines. Two representative matrices, lettuce and orange, were selected and fortified at two concentration levels for these experiments. At the LOQ and ten times the LOQ, recoveries of the analytes were ...
Evaluation of whole genome sequencing for routine subtyping of Salmonella Typhimurium for surveillance and outbreak investigation
Electrophoresis epidemiology Evaluating EVALUATION Genome Genotype Human identify INFECTION Infectious Infectious diseases investigation IS LEVEL method national Next-generation sequencing NGS ORIGIN outbreak ...
Fast and discriminative CoSYPS detection system of viable Salmonella spp. and Listeria spp. in carcass swab samples.
spp. The results showed that the relative level of detection and the limit of detection of the complete workflow and ISO reference methods are in a range from 2 to 16 CFU /swab for both bacteria. The ...
An emetic Bacillus cereus outbreak in a kindergarten: detection and quantification of critical levels of cereulide toxin.
Cells Tandem Mass Spectrometry Vomiting Abstract: A Bacillus cereus-related emetic outbreak was reported in a Belgian kindergarten. High levels of emetic B. cereus (>1.5E+07 colony-forming units/g) ...
Parasite distribution and associated immune response during the acute phase of Toxoplasma gondii infection in sheep.
indicate that parasites enter the cranial small intestine the first days after infection and that after an increase the first two weeks after infection, the parasite DNA levels in the intestine drop below ...
Determination of caramel colorants' by-products in liquid foods by ultra-high-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS).
colours and are transferred to the processed food. These contaminants are known to have a toxicological profile that may pose health risks. Hence, to characterise THI, 2- and 4- MI and 5- HMF levels in ...
Protocol of the PSYCHOTSH study: association between neonatal thyroid stimulating hormone concentration and intellectual, psychomotor and psychosocial development at 4-5 year of age: a retrospective cohort study.
may affect the neurodevelopment of the offspring. In several studies, elevated TSH levels at birth were associated with suboptimal cognitive and psychomotor outcomes among young children. This paper ...
Multi-dye residue analysis of triarylmethane, xanthene, phenothiazine and phenoxazine dyes in fish tissues by ultra-performance liquid chromatography-tandem mass spectrometry.
background levels of the xanthene dyes, the two rhodamine dyes could only be determined above 0.75ngg(-1). For these dyes, the method can only be used for screening purposes. To show the applicability of the ...
Hair mercury and urinary cadmium levels in Belgian children and their mothers within the framework of the COPHES/DEMOCOPHES projects.
(≤ 45 years) living in urban or rural areas of Belgium. The geometric mean levels for mercury in hair were 0.383 μg/g and 0.204 μg/g for respectively mothers and children. Cadmium in mother’s and ...
SYBR®Green qPCR Salmonella detection system allowing discrimination at the genus, species and subspecies levels.
Sensitivity and Specificity Staining and Labeling Abstract: In this work, a three-level Salmonella detection system based on a combination of seven SYBR ®Green qPCR was developed. This detection system ...