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Zoekresultaten - 187 results

Predicting the severity of the grass pollen season and the effect of climate change in Northwest Europe

are major questions often posed by those with allergic rhinitis: How should I prepare for the forthcoming season? How will the season’s severity develop over the years? No country yet provides clear ...

Development of a “Freeze-Pour” Sample Preparation Method for the GC Analysis of Semivolatile Flavouring Chemicals Present in E-cigarette Refill Liquids

chromatography (HS- GC) analysis is presented as an excellent method for the analysis of high volatile components in e-liquids. For the analysis of semivolatile ingredients, an additional sample preparation step ...

Influence of reduced levels or suppression of sodium nitrite on the outgrowth and toxinogenesis of psychrotrophic Clostridium botulinum Group II type B in cooked ham.

Chloride Sodium Nitrite Vacuum Abstract: Outgrowth and toxinogenesis of Clostridium botulinum Group II (non-proteolytic) type B were studied in cooked ham prepared with different NaNO (ranging from 0 to ...

Bepaling van spoorelementen in diverse matrices met spectrometische technieken.

preparations were mineralized with HNO3 in microwave oven and the concentrations of As, Cd, Ni, Pb in the samples were analyzed with an ICP- MS. Hg in these samples was determined with the AMA. 2.textile samples ...

Agglomeration of titanium dioxide nanoparticles increases toxicological responses in vitro and in vivo

influence of NP agglomeration on their toxicity/biological responses in vitro and in vivo. Results: We tested two TiO2 NP s with different primary sizes (17 and 117 nm) and prepared ad-hoc suspensions ...

Characterization of Nanoparticles: Measurement Processes for Nanoparticles: Characterization of nanomaterials by transmission electron microscopy: Measurement procedures

Processes for Nanoparticles surveys this fast growing field, including established methods for the physical and chemical characterization of nanoparticles. The book focuses on sample preparation issues ...

Physicochemical Characterization of the Pristine E171 Food Additive by Standardized and Validated Methods.

spectrometry (spICP- MS). The evaluation of selected sample preparation protocols allowed identifying and optimizing the critical factors that determine the measurement of the particle size distribution by TEM. ...

Biological monitoring of exposure to pesticide residues among Belgian florists

during preparing bouquets and handling contaminated flowers. A study was conducted among volunteer Belgian florists in order to assess their total exposure by measuring concentrations of pesticides (parent ...

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