Zoekresultaten - 97 results
A systematic evaluation of Flow Field Flow Fractionation and single-particle ICP-MS to obtain the size distribution of organo-mineral iron oxyhydroxide colloids.
particle size with high resolution in a 1 mM NHHCO (pH 8.3) background and can detect Fe- NOM complexes <5 nm and organo-mineral FeOx particles ranging 5-300 nm. The sp- ICP- MS method had a size ...
Physicochemical Characterisation of the E171 Food Additive
sample preparation protocols influencing particle dispersion (pH, probe sonication and centrifugation) were tested and optimized. In optimized conditions, representative TEM micrographs could be recorded, ...
A simple dilute-and-shoot method for screening and simultaneous quantification of nicotine and alkaloid impurities in electronic cigarette refills (e-liquids) by UHPLC-DAD
excluded. In addition, small changes to the column temperature, pH and molar concentration of the mobile phase buffer were deliberately introduced in order to assess the robustness of the method. Only ...
Sensitivity of African swine fever virus (ASFV) to heat, alkalinity and peroxide treatment in presence or absence of porcine plasma.
without peroxide (P). Time (T) dependent inactivation was evaluated in presence or absence of porcine plasma. HAPT-treatment at H = 48 °C, A = pH 10.2 and P = 20.6 or 102.9 mM HO during 10 min (T) ...
Chromatographic fingerprinting as a strategy to identify regulated plants in illegal herbal supplements.
Tribulus terrestris. The full factorial design demonstrated that for all three plant references a C8 column (250mm×4.6mm; 5µm particle size) is best suited; methanol and an ammonium formate buffer (pH 3) ...
Polyphosphates and Fulvates Enhance Environmental Stability of PO4-Bearing Colloidal Iron Oxyhydroxides.
or agricultural applications. Here, the stability of PO4-Fe- NP s (HFO /goethite) was determined across contrasting environmental conditions (pH, Ca concentration) and by using fulvates (FA) and ...
Pediatric diabetes centres rated parental responsibility and family support as most important determinants of HbA1c using a 17-item questionnaire: a pilot study
A wider set of factors scored highly with regard to PH. But parental responsibility and family support remained among the highest ranking contributors, together with adolescence. — When a known risk factor ...
Ontwikkeling van een HILIC-PDA methode voor de detectie van illegale polypeptiden
ammoniumformaat 80% acetonitrille (ACN) oplossing met pH 3 en een 10 mM ammoniumformaat 40% ACN oplossing met pH 3 aangewend. Aangezien humane insuline, runder- en varkensinsuline in een 80% ACN oplossing niet of ...
One Decade of Active Avian Influenza Wild Bird Surveillance in Belgium Showed a Higher Viroprevalence in Hunter-Harvested Than in Live-Ringed Birds.
Publication Type: Peer reviewed scientific article Authors: Mieke Steensels; Vangeluwe, D; Linden, A; Houdart, Ph; Thierry van den Berg; Bénédicte Lambrecht Source: Avian Dis, Volume 60, Issue ...
Collaborative study for the establishment of the WHO 3rd international standard for Endotoxin, the Ph. Eur. endotoxin biological reference preparation batch 5 and the USP Reference Standard for Endotoxin Lot H0K354
European global health healthcare Institute International International Standard IS IT Laboratories Long-term Medicine medicines method methods Objective observed organisation organization ph PRODUCTS ...