, 2013 The objectives of the review are the collection, concise description and evaluation of the various chromatographic technologies applied for the separation and quantitative determination of macro- and microcomponents present in ...
Cserháti, Tibor, Szőgyi, Mária
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Journal of the Brazilian Chemical Society, 2000 A flow system for copper on-line preconcentration, employing a tannin resin prepared from Eucalyptus Saligna Sm, with determination by flame atomic absorption spectrometry is proposed.
Miranda Carlos E. S. +3 more
doaj
Trans unsaturated fatty acids : a study of methodology and levels in New Zealand food fats including milkfat : a thesis presented in partial fulfilment of the requirements for the degree of Masters of Science in Biochemistry at Massey University, New Zealand [PDF]
, 1997 Trans fatty acids (TFAs) occur naturally in small amounts in foods such as milk, butter and tallow as a result of biohydrogenation by ruminant gut microflora. They are formed in much larger quantities during chemical hydrogenation of fats and oils.
Fong, Bertram Ian Yin
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Synthesis and characterization of a new nanosorbent based on functionalized magnetic nanoparticles and its use in the determination of mercury by FI-CV-ETAAS [PDF]
, 2015 In this work, a new chelating sorbent which employs 1,5-bis(di-2-pyridil)methylene thiocarbohydrazide as the functional group and magnetic nanoparticles (MNPs) as its support (DPTH-MNP) was synthetized and characterized.
Cano-Pavón, José Manuel +3 more
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Mercury preconcentration on gold coated mica column and investigation of preconcentration condition
, 2004 DC ABSTRACT MERCURY PRECONCENTRATION ON GOLD COATED MICA COLUMN AND INVESTIGATION OF PRECONCENTRATION CONDITIONS GURAY, Ahmet MSc Thesis in Chemistry Supervisor: Prof. Dr. Hüseyin TURAL September 2004, 52 pages Cold Vapor AAS technique is a kind of sensitive mercury determination techniques.
openaire +2 more sources
Journal of the Brazilian Chemical Society, 2006 Silica gel with a specific area of 382 m² g-1 and an average pore diameter of 60 Å was chemically modified with 2-amino-1,3,4-thiadiazole, for the purpose of selective adsorption of heavy metals ions and possible use as a chemically modified carbon paste
Dias Filho Newton L. +3 more
doaj
Mechanisms of deterioration of nutrients [PDF]
Methods for improving the quality of freeze-dried foods were investigated. Areas discussed include: (1) microstructure of freeze-dried systems, (2) structural changes in freeze-dried systems, (3) artificial food matrices, and (4) osmotic preconcentration
Flink, J. M., Karel, M.
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Determination of Copper in Cachaça Samples Preconcentrated on Filter Paper by Portable EDXRF. [PDF]
ACS OmegaAraújo RO +5 more
europepmc +1 more source
Measurement of tropospheric carbonyl sulfide by microwave spectrometry [PDF]
Microwave rotational spectrometry is used to measure tropospheric carbonyl sulfide.
Hofmann, D. J., Rinehart, E. A.
core +1 more source
A Novel 3D-Printed Flow Cell Design for <i>In Operando</i> Disposable Printed Electrode Replacement: Improving Continuous Methylene Blue Determination. [PDF]
Micromachines (Basel)Boček Ž +5 more
europepmc +1 more source