Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Stanislawa Koronkiewicz"'
Autor:
Stanislawa Koronkiewicz
Publikováno v:
Molecules, Vol 26, Iss 15, p 4498 (2021)
In this work, an innovative, flow-through, double-beam, photometric detector with direct injection of the reagents (double-DID) was used for the first time for the determination of iron in pharmaceuticals. For stable measurement of the absorbance, do
Externí odkaz:
https://doaj.org/article/8f75b816ea6744b8b9b1be00162240df
Publikováno v:
Sensors and Actuators A: Physical. 258:146-155
A second generation of the photometric direct-injection detector for flow analysis is presented. In the detector, a log ratio amplifier to measure the absorbance in the system of double paired emission-detection LED diodes (double-PEDD) has been appl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d52305e27b276782246cba9a2d4e3e82
https://doi.org/10.1016/j.sna.2017.03.019
https://doi.org/10.1016/j.sna.2017.03.019
Autor:
Paweł Kościelniak, Karol Machowski, Sławomir Kalinowski, Joanna Kozak, Stanislawa Koronkiewicz, Iwona Molęda, Justyna Paluch
Abstract This paper presents a novel, automatic, simple approach to stop-flow photometric determination of Fe(II) in wastewater and wine samples using a multi-pumping flow system with a direct-injection detector. The basis for the determination was t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::697c6a914366d24dcf9f78798134f7e1
https://ruj.uj.edu.pl/xmlui/handle/item/252526
https://ruj.uj.edu.pl/xmlui/handle/item/252526
Autor:
Sławomir Kalinowski, Harsha Ratnaweera, Stanislawa Koronkiewicz, Mihaela Trifescu, Lech Smoczyński
Publikováno v:
Environmental Monitoring & Assessment
Environmental Monitoring and Assessment
Environmental Monitoring and Assessment
The novel automatic flow system, direct-injection detector (DID) integrated with multi-pumping flow system (MPFS), dedicated for the photometric determination of orthophosphates in wastewater and freshwater samples is for the first time described. Al
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::04aba1485d509101213194a92385268d
https://doi.org/10.1007/s10661-018-6511-z
https://doi.org/10.1007/s10661-018-6511-z
Autor:
Aleksei Pochivalov, Stanislawa Koronkiewicz, Christina Vakh, Viktor N. Postnov, Andrey Bulatov, Sławomir Kalinowski
Publikováno v:
Food chemistry. 270
An automated and miniaturized chemiluminescence method for screening of fluoroquinolones in milk samples was proposed. The method was based on magnetic dispersive micro-solid phase extraction of analytes followed by the chemiluminescence determinatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::96ca1507dd0fcfe0ed099944c81da22c
https://pubmed.ncbi.nlm.nih.gov/30174022
https://pubmed.ncbi.nlm.nih.gov/30174022
Publikováno v:
Talanta. 167
A novel approach for the automatic chemiluminescence (CL) analysis of the complex samples is proposed. A multi-pumping flow system was successfully combined with fluidized reactor and direct-injection CL detector. The possibility of the approach was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e588980d75964457e5c78b305660cbc
https://pubmed.ncbi.nlm.nih.gov/28340785
https://pubmed.ncbi.nlm.nih.gov/28340785
Publikováno v:
Talanta. 86:436-441
A novel flow photometric detector based on paired emitter-detector diodes (PEDD), coupled with solenoid pulse micro-pumps is presented. The photometric detection chamber also plays a role of the reaction chamber. Both solutions, a sample and a reagen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5b7b8efc31ae1146c8647d0b9a8e7ec5
https://doi.org/10.1016/j.talanta.2011.08.055
https://doi.org/10.1016/j.talanta.2011.08.055
Publikováno v:
Bioelectrochemistry. 70:64-70
Experiments show significant effects of an electric field on lipid membrane, leading to a pore formation when a high intensity field is applied. The phenomenon of electroporation is preceded by the induction and expansion of defects, responsible for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e653f87c09b86fa136c33da64afc8208
https://doi.org/10.1016/j.bioelechem.2006.03.017
https://doi.org/10.1016/j.bioelechem.2006.03.017
Influence of cholesterol on electroporation of bilayer lipid membranes: chronopotentiometric studies
Publikováno v:
Biochimica et Biophysica Acta (BBA) - Biomembranes. 1661(2):196-203
This paper presents the results of constant-current (chronopotentiometric) measurements of the egg yolk phosphatidylcholine (PC) bilayer membrane without and with cholesterol. The experiments were performed on planar bilayer lipid membrane (BLM) form
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::480079e71208c03f02cdc7d7b5f9c020
Publikováno v:
Biochimica et Biophysica Acta (BBA) - Biomembranes. 1561(2):222-229
This paper presents the application of chronopotentiometry in the study of membrane electroporation. Chronopotentiometry with a programmable current intensity was used. The experiments were performed on planar bilayer phosphatidylcholine and choleste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::85c2510359d4aa23453c5f0011b1c9fe