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Zoekresultaten - 8 results
Validation of single particle ICP-MS for routine sizing and quantification of the fraction of silver nanoparticles in E174 food addititves and confectionery products
the size distribution compared to the size distribution obtained from transmission electron microscopy. Depending on the sample and the background silver concentration, particles with an equivalent ...
Physicochemical Characterisation of the E171 Food Additive
http://www.rafa2019.eu/pdf/RAFA2019_BoA_web.pdf Keywords: E171 particle size distribution Single particle ICP-MS titanium dioxide transmission electron microscopy Abstract: The application of E171 (titanium dioxide) as a food additive has been an ...
Screening for nanoparticles in complex matrices within a regulatory framework: are we there yet?
samples of E174 and ten food items containing E174 were investigated for their number-based size distribution of Ag particles. The food items were as well investigated for their total Ag content. Single ...
Measurement equivalence of the Belgian health interview auto-questionnaire: paper-based versus web-based mode.
Epidemiological Methods for Implementation Research, Issue Nederlandse Epidemiologie Vereniging (2017) Keywords: Adult Belgium Female health surveys Humans Internet Male Paper Sample Size Self Administration ...
A validated ultra high pressure liquid chromatographic method for qualification and quantification of folic acid in pharmaceutical preparations
method ON organic parameters ph Pharmaceutical Preparations Pressure profile Quantification Reproducibility response result results Sample Samples separation Size Statistical Still System Test time ...
High prevalence of vitamin D deficiency in pregnant women: a national cross-sectional survey
determinants of vitamin D status in the first and third trimester of pregnancy. The women were selected via a multi-stage proportionate-to-size sampling design. Blood samples were collected and a questionnaire ...
Iodine deficiency among Belgian pregnant women not fully corrected by iodine-containing multivitamins: a national cross-sectional study
introduction of bread fortification with iodised salt.Methods: Women in the first and third trimester of pregnancy were selected according to a multi-stage proportionate-to-size stratified sampling design. Urine ...
A novel approach to model 4 decades of marine chemical data
missing essential metadata, sample analysis on different grain size fractions,… Therefore, existing time trend modelling approaches could not be applied within the 4Demon project. An alternative approach, ...