Browsing by Author "Kapnissi‐Christodoulou, Constantina P."
Now showing items 1-20 of 44
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Analysis of l-thyroxine from pharmaceutical formulations using a potentio metricmicrosensor based on ionic liquid
Mitrofan, Grigorina; Stefan-Van Staden, R. I.; Moldoveanu, I.; Kapnissi‐Christodoulou, Constantina P. (2017)A new enantioselective, potentiometric microsensor based on ionic liquid L-Ala-C4-NO3-L-lac was designed and used for the assay of L-thyroxyne (L-T4) in its pharmaceutical formulations. The matrix used for the design of ...
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Analysis of polyphenols using capillary zone electrophoresis - Determination of the most effective wine sample pre-treatment method
Nicolaou, I. N.; Kapnissi‐Christodoulou, Constantina P. (2010)A simple CZE method has been developed for the simultaneous determination of eight polyphenolic compounds. The influence of several experimental conditions such as buffer (concentration and pH) and temperature were studied. ...
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Analytical separations in open-tubular capillary electrochromatography
Kapnissi‐Christodoulou, Constantina P.; Zhu, X.; Warner, I. M. (2003)This review represents a summary of recent progress in open-tubular capillary electro-chromatography (OT-CEC) for chiral and achiral separations. The OT-CEC approach is an alternative to packed-CEC that could eliminate the ...
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Analytical separations using molecular micelles in open-tubular capillary electrochromatography
Kapnissi‐Christodoulou, Constantina P.; Akbay, C.; Schlenoff, J. B.; Warner, I. M. (2002)Open-tubular capillary electrochromatography (OT-CEC) is an alternative approach to conventional CEC. The primary advantage of OT-CEC is the elimination of problems associated with frits and silica particles in conventional ...
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Chiral ionic liquids in chromatographic and electrophoretic separations
Kapnissi‐Christodoulou, Constantina P.; Stavrou, Ioannis J.; Mavroudi, Maria C. (2014)This report provides an overview of the application of chiral ionic liquids (CILs) in separation technology, and particularly in capillary electrophoresis and both gas and liquid chromatography. There is a large number of ...
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Chiral selectors in CE: Recent development and applications (mid-2014 to mid-2016)
Stavrou, Ioannis J.; Agathokleous, Eliana A.; Kapnissi‐Christodoulou, Constantina P. (2017)This report, which is a sequence of a series of reviews, records the most important chiral selectors (CSs) applied in CE. It highlights the CSs that were used during the period 2014 to mid-2016. In this review, method ...
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Chiral selectors in CE: Recent developments and applications
Tsioupi, Despina A.; Stefan-van Staden, R. -I; Kapnissi‐Christodoulou, Constantina P. (2013)This review article provides an overview of the recent advances in enantioanalysis by use of electrophoretic techniques. Due to the big number of publications in the subject mentioned above, this article is focused on ...
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Article
Chiral selectors in CE: Recent developments and applications
Tsioupi, Despina A.; Stefan‐vanStaden, Raluca‐Ioana; Kapnissi‐Christodoulou, Constantina P.; Rassi, Ziad El (2013)
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Chiral selectors in CE: Recent developments and applications (2012-mid 2014)
Stavrou, Ioannis J.; Mavroudi, Maria C.; Kapnissi‐Christodoulou, Constantina P. (2015)There is a large number of chiral selectors (CSs) that have, over the years, been synthesized and used in electrophoretic enantioseparations. This report highlights the most important CSs applied in CE during the period ...
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Chiral selectors in CE: Recent developments and applications (2012‐mid 2014)
Stavrou, Ioannis J.; Mavroudi, Maria C.; Kapnissi‐Christodoulou, Constantina P.; El Rassi, Ziad (2014)
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Chiral separation of Huperzine A using CE - Method validation and application in pharmaceutical formulations
Tsioupi, Despina A.; Nicolaou, I. N.; Moore, L.; Kapnissi‐Christodoulou, Constantina P. (2012)The aim of this work is the development, validation and application of an MEKC method for the chiral separation of Huperzine A. Huperzine A is an important compound that is used to treat Alzheimer's disease. However, only ...
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Chiral separation of the clinically important compounds fucose and pipecolic acid using ce: Determination of the most effective chiral selector
Hadjistasi, Christoforos A.; Stavrou, Ioannis J.; Stefan-Van Staden, R. -I; Aboul‐Enein, Hassan Y.; Kapnissi‐Christodoulou, Constantina P. (2013)In this study, simple electrophoretic methods were developed for the chiral separation of the clinically important compounds fucose and pipecolic acid. In recent years, these analytes, and particularly their individual ...
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Chiral Separation of the Clinically Important Compounds Fucose and Pipecolic Acid Using CE: Determination of the Most Effective Chiral Selector
Hadjistasi, Christoforos A.; Stavrou, Ioannis J.; Stefan‐Van Staden, Raluca‐Ioana; Aboul‐Enein, Hassan Y.; Kapnissi‐Christodoulou, Constantina P. (2013)
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Chiral separations using a polypeptide and polymeric dipeptide surfactant polyelectrolyte multilayer coating in open-tubular capillary electrochromatography
Kamande, M. W.; Zhu, X.; Kapnissi‐Christodoulou, Constantina P.; Warner, I. M. (2004)A polyelectrolyte multilayer (PEM) coating consisting of the polypeptide, poly(L-lysine) hydrobromide, poly(L-lysine) and the polymeric dipeptide surfactant, poly(sodium undecanoyl-L-leutcyl-alaninate), poly(L-SULA), is ...
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Chiral Separations Using Polymeric Surfactants and Polyelectrolyte Multilayers in Open-Tubular Capillary Electrochromatography
Kapnissi‐Christodoulou, Constantina P.; Valle, B. C.; Warner, I. M. (2003)In this study, fused-silica capillaries are modified using a polyelectrolyte multilayer (PEM) coating procedure in open-tubular capillary electrochromatography. The PEM coating was constructed in situ with alternating ...
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Combined use of cyclofructans and an amino acid ester-based ionic liquid for the enantioseparation of huperzine A and coumarin derivatives in CE
Stavrou, Ioannis J.; Breitbach, Z. S.; Kapnissi‐Christodoulou, Constantina P. (2015)Cyclofructans (CFs) and their derivatives have recently been proven to be efficient chiral selectors (CSs) for the enantioseparation of several analytes in CE, HPLC, and GC. In this study, the chiral separation ability of ...
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Combined use of l-alanine tert butyl ester lactate and trimethyl-ß-cyclodextrin for the enantiomeric separations of 2-arylpropionic acids nonsteroidal anti-inflammatory drugs
Mavroudi, Maria C.; Kapnissi‐Christodoulou, Constantina P. (2015)In this study, a new CE method, employing a binary system of trimethyl-ß-CD (TM-ß-CD) and a chiral amino acid ester-based ionic liquid (AAIL), was developed for the chiral separation of seven 2-arylpropionic acid nonsteroidal ...
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Combined use of l‐alanine tert butyl ester lactate and trimethyl‐β‐cyclodextrin for the enantiomeric separations of 2‐arylpropionic acids nonsteroidal anti‐inflammatory drugs
Mavroudi, Maria C.; Kapnissi‐Christodoulou, Constantina P. (2015)
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Development of a capillary electrophoresis-mass spectrometry method for the determination of rivastigmine in human plasma - Optimization of the limits of detection and quantitation
Nicolaou, I. N.; Kapnissi‐Christodoulou, Constantina P. (2012)A capillary zone electrophoresis-electrospray ionization-mass spectrometry (CZE-ESI-MS) method was developed for the analysis of the acetylcholinesterase inhibitor rivastigmine. Several electrophoretic and ESI-MS parameters ...
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Development of a Reliable Analytical Protocol for the Isolation of Cholesterol Oxidation Products—a Comparison of Different Lipid Extraction and Saponification Methods
Constantinou, Michalis S.; Georgiou, Christiana A.; Kapnissi‐Christodoulou, Constantina P. (2015)The main objectives of this study were (i) the optimization and the validation of a high performance liquid chromatographic method for the simultaneous determination of seven cholesterol oxidation products (COPs), (ii) the ...