![]() Yin J, Cui Y, Yang G, Wang H (2010) Molecularly imprinted nanotubes for enantioselective drug delivery and controlled release. Zheng Y, Liu Y, Guo H, He L, Fang B, Zeng Z (2011) Molecularly imprinted solid-phase extraction for determination of tilmicosin in feed using high performance liquid chromatography. Zhang Z, Yang X, Zhang H, Zhang M, Luo L, Hu Y, Yao S (2011) Novel molecularly imprinted polymers based on multi-walled carbon nanotubes with binary functional monomer for the solid-phase extraction of erythromycin from chicken muscle. Ou J, Li X, Feng S, Dong J, Dong X, Kong L, Ye M, Zou H (2007) Preparation and evaluation of a molecularly imprinted polymer derivatized silica monolithic column for capillary electrochromatography and capillary liquid chromatography. Turiel E, Martin-Esteban A (2009) Molecularly imprinted polymers for solid‐phase microextraction. Haupt K (2001) Molecularly imprinted polymers in analytical chemistry. Kandimalla VB, Ju H (2004) Molecular imprinting: a dynamic technique for diverse applications in analytical chemistry. Spátaru N, Sarada BV, Tryk DA, Fujishima A (2002) Anodic voltammetry of xanthine, theophylline, theobromine and caffeine at conductive diamond electrodes and its analytical application. ![]() Ly SY, Lee CH, Jung YS (2009) Voltammetric bioassay of caffeine using sensor implant. Sun J-Y, Huang K-J, Wei S-Y, Wu Z-W, Ren F-P (2011) A graphene-based electrochemical sensor for sensitive determination of caffeine. Anal Chim Acta 642:212–216īruna CL, Roberta AM, Romeu CR-F, Luiz HM, Orlando F-F (2009) Simultaneous voltammetric determination of paracetamol and caffeine in pharmaceutical formulations using a boron-doped diamond electrode. J Pharm Biomed Anal 46:267–273Īlves JCL, Poppi RJ (2009) Simultaneous determination of acetylsalicylic acid, paracetamol and caffeine using solid-phase molecular fluorescence and parallel factor analysis. Koleva BB, Kolev TM, Tsalev DL, Spiteller M (2008) Determination of phenacetin and salophen analgetics in solid binary mixtures with caffeine by infrared linear dichroic and Raman spectroscopy. Zhang Y, Mehrotra N, Budha NR, Christensen ML, Meibohm B (2008) A tandem mass spectrometry assay for the simultaneous determination of acetaminophen, caffeine, phenytoin, ranitidine, and theophylline in small volume pediatric plasma specimens. Zhao Y, Lunte CE (1997) Determination of caffeine and its metabolites by micellar electrokinetic capillary electrophoresis. Maeso N, Castillo C, Cornejo L, García-Acicollar M, Alguacil LF, Barbas C (2006) Capillary electrophoresis for caffeine and pyroglutamate determination in coffees: Study of the in vivo effect on learning and locomotor activity in mice. Schreiber-Deturmeny E, Bruguerolle B (1996) Simultaneous high-performance liquid chromatographic determination of caffeine and theophylline for routine drug monitoring in human plasma. ![]() J Chromatogr A 1134:194–200īrunetto MR, Gutiérrez L, Delgado Y, Gallignani M, Zambrano A, Gómez Á, Ramos G, Romero C (2007) Determination of theobromine, theophylline and caffeine in cocoa samples by a high-performance liquid chromatographic method with on-line sample cleanup in a switching-column system. Sun H, Qiao F, Liu G (2006) Characteristic of theophylline imprinted monolithic column and its application for determination of xanthine derivatives caffeine and theophylline in green tea. The sensor was also successfully employed to detect CAF in tea samples. The results demonstrated that the prepared sensor had excellent selectivity and high sensitivity for CAF, and the linear range was 5.0 × 10 −10 ~ 1.6 × 10 −7 mol L −1 with a detection limit of 9.0 × 10 −11 mol L −1 (S/N = 3). The recognition and determination of the sensor were observed by measuring the changes of amperometric response of the oxidation-reduction probe, 3−/ 4−, on modified electrode. The morphologies and properties of the sensor were characterized by scanning electron microscopy, cyclic voltammetry, and differential pulse voltammetry. During the assembled and electropolymerization processes, CAF was embedded into the poly( o-aminothiophenol) film through hydrogen bonding interaction between CAF and ATP, forming an MIP electrochemical sensor. Subsequently, o-aminothiophenol (ATP) was assembled on the surface of the above electrode through Au–S bond before electropolymerization. The sensor was constructed through the following steps: multiwalled carbon nanotubes and gold nanoparticles were first modified onto the glassy carbon electrode surface by potentiostatic deposition method successively. A sensitive and selective electrochemical sensor based on molecularly imprinted polymers (MIPs) was developed for caffeine (CAF) recognition and detection.
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