Zoekresultaten - 176 results

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

sample, the uncertainty related to sample preparation increased to 6.8%. The expanded measurement uncertainty related to the concentration determination was 25-45% in these complex samples, without a clear ...

A systematic evaluation of Flow Field Flow Fractionation and single-particle ICP-MS to obtain the size distribution of organo-mineral iron oxyhydroxide colloids.

study was set up to determine the size of environmentally relevant FeOx colloids with new methods, i.e. Flow Field Flow Fractionation (FlFFF- UV- ICP- MS) and single-particle ICP- MS / MS (sp- ICP- MS) ...

Determination of endocrine disrupting compounds in human placenta by UPLCESI-MS/MS

on Biological Monitoring in Occupational and Environmental Health (ISBM-11) (2019) Keywords: endocrine disrupting compounds human placenta UPLCESI-MS/MS Abstract: Conclusions of the presentation given ...

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

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 bisphenols (BP) (BPA, ...

How can we monitor the impact of national health information systems? Results from a scoping review.

information (HI) systems provide data on population health, the determinants of health and health system performance within countries. The evaluation of these systems has traditionally focused on statistical ...

Determinants of unit nonresponse in multi-mode data collection: A multilevel analysis.

from the Belgian Health Interview Survey 2013 were used to identify determinants of nonresponse to self-administered questionnaire (n = 1,464) among those who had completed the face-to-face interview (n ...

Report on the 2018 Multimycotoxin Proficiency Test: Determining 12 mycotoxins in cornflakes

mycotoxins at the same time on oat flour and to compare their interlaboratory results. The PT allowed the determination of the following toxins: aflatoxin B1 (AfB1), aflatoxin B2 (AfB2), aflatoxin G1 (AfG1), ...

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