MIPs logo MIPdatabase      MIP2020 Conference logo Use this space
Custom Search
Reference type: Journal
Authors: Jin YZ, Row KH
Article Title: Molecularly imprinted solid-phase extraction of caffeine from green tea.
Publication date: 2006
Journal: Journal of Industrial and Engineering Chemistry
Volume: 12
Issue: (3)
Page numbers: 494-499.
Alternative URL: http://www.cheric.org/PDF/JIEC/IE12/IE12-3-0494.pdf

Abstract: In this study, caffeine was extracted from green tea by using molecularly imprinted polymers (MIP) as sorbent materials in solid-phase extraction (SPE), a technique known as MISPE (molecularly imprinted solid-phase extraction). For synthesis of the MIP, caffeine as the template, MAA as the monomer, EGDMA as the crosslinker, and AIBN as the initiator were used. A solution of caffeine (0.2 mg/mL in methanol) was utilized to the solid extraction cartridges following loading, washing, and elution procedures with acetonitrile, methanol, and methanol-acetic acid (90/10, %v/v) as solvents, respectively. This solid-phase extraction protocol was applied to the extraction of caffeine from green tea. A comparison was made between the results obtained with the MIP, blank polymer cartridges, and a traditional C-18 reversed-phase cartridge. The recovery obtained using the MIP-based sorbent was almost two times higher than that obtained using a commercially available C-18 is material. The analysis was performed through high-performance liquid chromatography (HPLC) using a C-18 column (5 μm, 250 x 4.6 mm) with methanol-water (40/60, %v/v) as the mobile phase at a flow rate of 0.5 mL/min
Template and target information: caffeine
Author keywords: molecular imprinted solid-phase extraction (MISPE), caffeine, recovery, selectivity


  Krypton periodic table mug  Scientist peptide mug    Shirt featuring the template Caffeine

Molecules Special Issue call      Appeal for information






 

Join the Society for Molecular Imprinting
Logo of the Society for Molecular Imprinting

New items RSS feed
new items RSS feed  View latest updates

Sign-up for e-mail updates:
Choose between receiving an occasional newsletter or more frequent e-mail alerts.
Click here to go to the sign-up page.


Is your name elemental or peptidic? Enter your name and find out by clicking either of the buttons below!
Other products you may like:
view listings for MIP books on eBay:



Mickey Mouse 90th Anniversary banner