R. Wietecha-Posłuszny

Publications52
h-index13
Citations465
Highly Influential Citations11
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Antioxidants activities and concentration of selenium, zinc and copper in preterm and IUGR human placentas.
The aim of this study was to examine changes in activities of cytochrome c oxidase (CCO), glucose-6-phosphate dehydrogenase (G6PDH), Cu-Zn superoxide dismutase (Cu-Zn SOD), glutathione peroxidase… Expand
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Development of microextraction by packed sorbent for toxicological analysis of tricyclic antidepressant drugs in human oral fluid.
The aim of this study was to apply microextraction by packed sorbent (MEPS) to the isolation of six tricyclic antidepressants (TCADs): nordoxepin, doxepin, desipramine, nortriptyline, imipramine, and… Expand
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Development of the MAE/UHPLC-MS-TOF method for determination of benzodiazepines in human bio-fluids for toxicological analysis.
A rapid method of microwave-assisted extraction (MAE) followed by ultrahigh performance liquid chromatography with mass spectrometry with time of flight detection (UHPLC-MS-TOF) was optimized and… Expand
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Application of laser induced breakdown spectroscopy to examination of writing inks for forensic purposes.
The research was focused on the analysis of writing inks using the laser induced breakdown spectroscopy (LIBS) technique. 34 samples of blue, 30 of black, and 21 of red writing inks were analyzed… Expand
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The Interaction Between Selenium Status, Sex Hormones, and Thyroid Metabolism in Adolescent Girls in the Luteal Phase of their Menstrual Cycle
The objective of the present work was to study all physiological relationships among selenium status (SeS), sex hormones secretion (SH), and thyroid metabolism (ThM) in healthy adolescent girls, at… Expand
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Determination of selenium in human blood using atomic fluorescence spectrometry
In the present publication, a method developed for the determination of selenium in human blood is described. A blood sample was completely digested by nitric acid with use of a microwave oven. The… Expand
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Application of Three Spectrometric Methods to Total Selenium Determination in Postmortem Material in a Case of Acute Selenium Compound Poisoning
Abstract:  Three spectrometric methods, that is, spectrofluorimetry (SF), atomic absorption spectrometry with electrothermal atomization (ET‐AAS), and atomic fluorescence spectrometry with hydride… Expand
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Microwave-assisted extraction of tricyclic antidepressants from human serum followed by high performance liquid chromatography determination.
A microwave-assisted extraction (MAE) method has been developed and optimized for the extraction of six tricyclic antidepressants (TCAD; nordoxepin, nortriptyline, imipramine, amitriptyline, doxepin,… Expand
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Selenium Supplementation of Amaranth Sprouts Influences Betacyanin Content and Improves Anti-Inflammatory Properties via NFκB in Murine RAW 264.7 Macrophages
Sprouts contain potent compounds which while influencing crucial transduction pathways in cell reveal anti-inflammatory and anticancer activities. In this study, we report the biological activity for… Expand
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Examination of colour inkjet printing inks by capillary electrophoresis.
The possibility of comparing inkjet printing inks by micellar electrokinetic capillary electrophoresis (MECC) with diode array detection was studied. An analytical procedure was designed and… Expand
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