Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Marta Farková"'
Publikováno v:
Czech Chemical Society Symposium Series. 20:319-322
This paper is focused on study of the concentration of the basic catalyst in methanol on the yield of the derivatization transesterification reaction of triacyglycerols. Potassium hydroxide and sodium hydroxide solutions were used as basic catalysts.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d78fff014fdd7e292697e317120430c
https://doi.org/10.54779/ccsss20220319
https://doi.org/10.54779/ccsss20220319
Publikováno v:
Journal of Separation Science. 32:4247-4253
The relationship between gushing and antifungal peptides in barley and malt kernels was examined for five barley varieties produced in the Czech Republic with four conditions of infection and treatment. Proteome changes during pathogen-seed interacti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d068bb67716d7cde06d2a31698c15ab8
https://doi.org/10.1002/jssc.200900510
https://doi.org/10.1002/jssc.200900510
Publikováno v:
Analytica Chimica Acta. 638:191-197
The application of an internal standard in quantitative analysis is desirable in order to correct for variations in sample preparation and instrumental response. In mass spectrometry of organic compounds, the internal standard is preferably labelled
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::08d62eab346156c8ad85563705d1ba36
https://doi.org/10.1016/j.aca.2009.02.034
https://doi.org/10.1016/j.aca.2009.02.034
Publikováno v:
Food Chemistry. 112:1046-1052
This work demonstrates the possibility to use artificial neural networks (ANN) for the classification of white varietal wines. A multilayer perceptron technique using quick propagation and quasi-Newton propagation algorithms was the most successful.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b791f5e1c95150bd5b81424190c573be
https://doi.org/10.1016/j.foodchem.2008.06.047
https://doi.org/10.1016/j.foodchem.2008.06.047
Publikováno v:
Journal of Chromatography A. 1084:180-185
Solid-phase extraction (SPE) is often used for preconcentration of analytes from biological samples. Such an analytical step requires optimization for obtaining reliable results. Optimization in analytical chemistry is traditionally still often done
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d4347b9bec95d3cb2b89ba69ecec5eb6
https://doi.org/10.1016/j.chroma.2004.10.007
https://doi.org/10.1016/j.chroma.2004.10.007
Autor:
Dagmar Gajdošová, Marta Farková, Klára Novotná, Miroslava Spanilá, Jiří Pazourek, Josef Havel
Publikováno v:
Journal of Chromatography A. 1081:48-54
The polyphenols (some of them are also called phytoalexins, flavonols, flavanons, flavanonols, flavons, flavanols, and anthocyanines) are usually marked as potent antioxidants or radical scavengers which assist the body cells against oxidation. Polyp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e1ce580d2a36728a1d9cb9f8ebe217bc
https://doi.org/10.1016/j.chroma.2005.02.056
https://doi.org/10.1016/j.chroma.2005.02.056
Publikováno v:
Polyhedron. 21:1375-1384
Multivariate calibration with experimental design (ED) and artificial neural networks (ANN) modeling can be used to estimate equilibria constants from any kind of protonation or metal–ligand equilibrium data like potentiometry, polarography, spectr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::37ec99caff5315ef3721cc41f24b62e3
https://doi.org/10.1016/s0277-5387(02)00955-5
https://doi.org/10.1016/s0277-5387(02)00955-5
Publikováno v:
Analytica Chimica Acta. 452:47-63
The application of the combination of experimental design (ED) and artificial neural networks (ANNs) for the quantification of overlapped peaks in capillary zone electrophoresis is described. When the total separation cannot be achieved by separation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::53fb40ed3f9fdbb58a7d6ad15cb3f4a1
https://doi.org/10.1016/s0003-2670(01)01445-3
https://doi.org/10.1016/s0003-2670(01)01445-3
Publikováno v:
Chirality. 14:509-518
Quantitation of optical isomers can be achieved even from incompletely resolved peaks with a multivariate calibration applying a combination of experimental design and artificial neural networks (ANN). Using the proposed approach, method development
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a65fb5983befaf5ebe3b30b0ee515961
https://doi.org/10.1002/chir.10108
https://doi.org/10.1002/chir.10108
Publikováno v:
Electroanalysis. 13:295-308
A use of artificial neural networks (ANN) and various experimental designs (ED) for refinement of experimental data obtained in a polarographic metal-ligand equilibrium study of fully dynamic (labile) metal complexes was thoroughly examined. ANN were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea6bdcc3710b0268ed187b8c07967c90
https://doi.org/10.1002/1521-4109(200103)13:4<295::aid-elan295>3.0.co
https://doi.org/10.1002/1521-4109(200103)13:4<295::aid-elan295>3.0.co