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Development of UHPLC-DAD method for separation of phenolic substances in plant material and extraction optimization
Turčanová, Anna ; Sklenářová, Hana (advisor) ; Šatínský, Dalibor (referee)
Charles University, Faculty of Pharmacy in Hradec Králové Department of Analytical Chemistry Candidate: Anna Turčanová Supervisor: doc. PharmDr. Hana Sklenářová, Ph.D. Advisor: Mgr. Marcela Hollá Title of the diploma thesis: Development of UHPLC-DAD method for separation of phenolic substances in plant material and extraction optimization This diploma thesis deals with development of UHPLC-DAD method for separation of selected phenolic substances (arbutin, chlorogenic, neochlorogenic, cryptochlorogenic, isochlorogenic A and caffeic acid, cynarin, catechin, epicatechin, rutin, hyperoside, hirsutrin, reynoutrin, guaiaverin, quercitrin and quercetin). UHPLC analysis of these phenolic substances took place on a Luna® Omega Polar C18 100 (150 x 2.1 mm; 1.6 μm) column with fully porous particles. As a part of the optimization method, a column with core-shell particles (Kinetex® Polar C18) and a column with a hybrid stationary phase (YMC-Triart C18 ExRS) were also tested. The sample injection volume was 2 μl, the flow rate has been set to 0.3 ml/min and temperature of the column has been set to 30 řC. As a mobile phase ultrapure water acidified with acetic acid to pH 2.8 in combination with acetonitrile has been used. The total analysis time was 17.5 min and detection was performed using a DAD detector at...
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Development of UHPLC-DAD method for separation of phenolic substances in plant material and extraction optimization
Turčanová, Anna ; Sklenářová, Hana (advisor) ; Šatínský, Dalibor (referee)
Charles University, Faculty of Pharmacy in Hradec Králové Department of Analytical Chemistry Candidate: Anna Turčanová Supervisor: doc. PharmDr. Hana Sklenářová, Ph.D. Advisor: Mgr. Marcela Hollá Title of the diploma thesis: Development of UHPLC-DAD method for separation of phenolic substances in plant material and extraction optimization This diploma thesis deals with development of UHPLC-DAD method for separation of selected phenolic substances (arbutin, chlorogenic, neochlorogenic, cryptochlorogenic, isochlorogenic A and caffeic acid, cynarin, catechin, epicatechin, rutin, hyperoside, hirsutrin, reynoutrin, guaiaverin, quercitrin and quercetin). UHPLC analysis of these phenolic substances took place on a Luna® Omega Polar C18 100 (150 x 2.1 mm; 1.6 μm) column with fully porous particles. As a part of the optimization method, a column with core-shell particles (Kinetex® Polar C18) and a column with a hybrid stationary phase (YMC-Triart C18 ExRS) were also tested. The sample injection volume was 2 μl, the flow rate has been set to 0.3 ml/min and temperature of the column has been set to 30 řC. As a mobile phase ultrapure water acidified with acetic acid to pH 2.8 in combination with acetonitrile has been used. The total analysis time was 17.5 min and detection was performed using a DAD detector at...
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