ChemInform Abstract: Microwave-Assisted Solid-Liquid Phase Alkylation of Naphthols.

ChemInform ◽  
2013 ◽  
Vol 44 (46) ◽  
pp. no-no
Author(s):  
Erika Balint ◽  
Orsolya Kovacs ◽  
Laszlo Drahos ◽  
Gyoergy Keglevich
Keyword(s):  
Liquid Phase ◽  
Microwave Assisted ◽  
Solid Liquid

Chemoselectivity in the microwave-assisted solvent-free solid–liquid phase benzylation of phenols: O- versus C-alkylation

2008 ◽  
Vol 49 (34) ◽  
pp. 5039-5042 ◽  
Author(s):  
György Keglevich ◽  
Erika Bálint ◽  
Éva Karsai ◽  
Alajos Grün ◽  
Mária Bálint ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Solvent Free ◽  
Microwave Assisted ◽  
Solid Liquid

ChemInform Abstract: Solid-Liquid Phase Alkylation of N-Heterocycles: Microwave-Assisted Synthesis as an Environmentally Friendly Alternative.

ChemInform ◽  
2010 ◽  
Vol 41 (52) ◽  
pp. no-no
Author(s):  
Matyas Milen ◽  
Alajos Gruen ◽  
Erika Balint ◽  
Andras Dancso ◽  
Gyoergy Keglevich
Keyword(s):  
Liquid Phase ◽  
Environmentally Friendly ◽  
Microwave Assisted Synthesis ◽  
Microwave Assisted ◽  
Solid Liquid

scholarly journals Microwave-Assisted Solid-Liquid Phase Alkylation of Naphthols

2013 ◽  
Vol 10 (5) ◽  
pp. 330-336 ◽  
Author(s):  
Erika Balint ◽  
Orsolya Kovacs ◽  
Laszlo Drahos ◽  
Gyorgy Keglevich
Keyword(s):  
Liquid Phase ◽  
Microwave Assisted ◽  
Solid Liquid

Solid–Liquid Phase Alkylation ofN-Heterocycles: Microwave-Assisted Synthesis as an Environmentally Friendly Alternative

2010 ◽  
Vol 40 (15) ◽  
pp. 2291-2301 ◽  
Author(s):  
Mátyás Milen ◽  
Alajos Grün ◽  
Erika Bálint ◽  
András Dancsó ◽  
György Keglevich
Keyword(s):  
Liquid Phase ◽  
Environmentally Friendly ◽  
Microwave Assisted Synthesis ◽  
Microwave Assisted ◽  
Solid Liquid

Multi-walled Carbon Nanotubes Reinforced into Hollow Fiber by Chitosan Sol-gel for Solid/Liquid Phase Microextraction of NSAIDs from Urine Prior to HPLC-DAD Analysis

2019 ◽  
Vol 20 (5) ◽  
pp. 390-400 ◽  
Author(s):  
Nabil N. AL-Hashimi ◽  
Amjad H. El-Sheikh ◽  
Rania F. Qawariq ◽  
Majed H. Shtaiwi ◽  
Rowan AlEjielat
Keyword(s):  
Carbon Nanotubes ◽  
Liquid Phase ◽  
Hollow Fiber ◽  
Sol Gel ◽  
Liquid Phase Microextraction ◽  
Extraction Device ◽  
Multi Walled Carbon Nanotubes ◽  
Solid Liquid ◽  
Walled Carbon Nanotubes

Background: The efficient analytical method for the analysis of nonsteroidal antiinflammatory drugs (NSAIDs) in a biological fluid is important for determining the toxicological aspects of such long-term used therapies. Methods: In the present work, multi-walled carbon nanotubes reinforced into a hollow fiber by chitosan sol-gel assisted-solid/ liquid phase microextraction (MWCNTs-HF-CA-SPME) method followed by the high-performance liquid chromatography-diode array detection (HPLC–DAD) was developed for the determination of three NSAIDs, ketoprofen, diclofenac, and ibuprofen in human urine samples. MWCNTs with various dimensions were characterized by various analytical techniques. The extraction device was prepared by immobilizing the MWCNTs in the pores of 2.5 cm microtube via chitosan sol-gel assisted technology while the lumen of the microtube was filled with few microliters of 1-octanol with two ends sealed. The extraction device was operated by direct immersion in the sample solution. Results: The main factors influencing the extraction efficiency of the selected NSAIDs have been examined. The method showed good linearity R2 ≥ 0.997 with RSDs from 1.1 to 12.3%. The limits of detection (LODs) were 2.633, 2.035 and 2.386 µg L-1, for ketoprofen, diclofenac, and ibuprofen, respectively. The developed method demonstrated a satisfactory result for the determination of selected drugs in patient urine samples and comparable results against reference methods. Conclusion: The method is simple, sensitive and can be considered as an alternative for clinical laboratory analysis of selected drugs.

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