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Accuracy and reproducibility of automated estradiol-17beta and progesterone assays using native serum samples: results obtained in the Belgian external assessment scheme.
frequently used in Belgium for estradiol-17beta (E(2)) and progesterone. Results obtained were compared with values determined by reference method, isotope dilution-gas chromatograph/mass spectrometry (ID- GC ...
Uncertainty of measurement for competitive and indirect ELISAs.
disease (FMD) ELISA s. Assay repeatability was determined by random effects analysis of variance, and the normality of the residuals was checked. The standard errors of the individual predicted values were ...
Selection of quinolone resistance in Streptococcus pneumoniae exposed in vitro to subinhibitory drug concentrations
pmrA and patA/patB was measured by real-time PCR and comparative RT- PCR, respectively. Target site mutations were detected by sequencing of the quinolone resistance determining regions in parC, parE and ...
Design and evaluation of analogues of the bacterial cell-wall peptidoglycan motif L-Lys-D-Ala-D-Ala for use in a vancomycin biosensor93
natural target of vancomycin in bacteria, EC (50) values of 6.3-8.0 x 10(-5)M (2a-b) and 7.1-9.3 x 10(-4)M (3a-b) were determined. Vancomycin:2b complex was characterized by MS Service: Quality of ...
Compounding of vitamin A, D3, E and K3 supplements for cystic fibrosis patients: formulation and stability study
(A, D(3) and E) or water-soluble grades (K(3)), which is favoured in CF patients as they fail to absorb oil-based products. The objective of this study was to determine stability of these raw materials ...
1199G> A and 2677G> T/A polymorphisms of ABCB1 independently affect tacrolimus concentration in hepatic tissue after liver transplantation.
polymorphisms in biotransformation enzymes or transporter proteins, such as CYP3A5 and P-glycoprotein (ABCB1), in donors and/or recipients, appear as important determinants of the Tac blood pharmacokinetics. ...
Target gene sequencing to characterize the penicillin G susceptibility of Neisseria meningitidis36789
isolates from 22 countries that spanned 60 years. Phenotyping, genotyping, and the determination of MIC s of penicillin G were also performed. A total of 139 different penA alleles were detected with 38 ...
In vitro determination of allergen-specific serum IgE. Comparative analysis of three methods118
Publication Type: Peer reviewed scientific article Authors: Libeer,J.C.; E. Van Hoeyveld; Kochuyt,A.M.; Weykamp,C.; Bossuyt,X. Source: Clin.Chem.Lab Med., Volume 45, Issue 3, Number 415, p.413- 415 (2007) Keywords: 0 Allergens analysi analysis Arachis hyp ...
The Determination of Chemical Elements in Food: Applications for Atomic and Mass Spectrometry
Publication Type: Scientific book or chapter Authors: Joris Van Loco; Caroli,S. Source: Wiley, Number 165, Rome, p.733 (2007) ISBN: 978-0-471-68784-9 Keywords: analysi analysis application applications food Food Analysis Mass Mass Spectrometry method Meth ...
External quality assessment in the measurement of haemoglobin by blood gas analysers in Belgium.
blood and were asked to determine the Hb concentration using both the conventional haematology analyser (HA) and all BGA s in the hospital. Ninety-seven hospital laboratories participated in the study and ...