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de Freitas Araújo KC, de Araújo Costa ECT, de Araújo DM, Santos EV, Martínez-Huitle CA, Castro PS. Probing the Use of Homemade Carbon Fiber Microsensor for Quantifying Caffeine in Soft Beverages. MATERIALS (BASEL, SWITZERLAND) 2023; 16:1928. [PMID: 36903043 PMCID: PMC10004175 DOI: 10.3390/ma16051928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 01/25/2023] [Accepted: 01/31/2023] [Indexed: 06/18/2023]
Abstract
In the development of electrochemical sensors, carbon micro-structured or micro-materials have been widely used as supports/modifiers to improve the performance of bare electrodes. In the case of carbon fibers (CFs), these carbonaceous materials have received extensive attention and their use has been proposed in a variety of fields. However, to the best of our knowledge, no attempts for electroanalytical determination of caffeine with CF microelectrode (µE) have been reported in the literature. Therefore, a homemade CF-µE was fabricated, characterized, and used to determine caffeine in soft beverage samples. From the electrochemical characterization of the CF-µE in K3Fe(CN)6 10 mmol L-1 plus KCl 100 mmol L-1, a radius of about 6 µm was estimated, registering a sigmoidal voltammetric profile that distinguishes a µE indicating that the mass-transport conditions were improved. Voltammetric analysis of the electrochemical response of caffeine at the CF-µE clearly showed that no effects were attained due to the mass transport in solution. Differential pulse voltammetric analysis using the CF-µE was able to determine the detection sensitivity, concentration range (0.3 to 4.5 µmol L-1), limit of detection (0.13 μmol L-1) and linear relationship (I (µA) = (11.6 ± 0.09) × 10-3 [caffeine, μmol L-1] - (0.37 ± 0.24) × 10-3), aiming at the quantification applicability in concentration quality-control for the beverages industry. When the homemade CF-µE was used to quantify the caffeine concentration in the soft beverage samples, the values obtained were satisfactory in comparison with the concentrations reported in the literature. Additionally, the concentrations were analytically determined by high-performance liquid chromatography (HPLC). These results show that these electrodes may be an alternative to the development of new and portable reliable analytical tools at low cost with high efficiency.
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Affiliation(s)
- Karla Caroline de Freitas Araújo
- Institute of Chemistry, Federal University of Rio Grande do Norte, Av. Campus Universitário, Av. Salgado Filho 3000, Lagoa Nova, Natal CEP59078-970, RN, Brazil
| | - Emily Cintia Tossi de Araújo Costa
- Institute of Chemistry, Federal University of Rio Grande do Norte, Av. Campus Universitário, Av. Salgado Filho 3000, Lagoa Nova, Natal CEP59078-970, RN, Brazil
| | - Danyelle Medeiros de Araújo
- Institute of Chemistry, Federal University of Rio Grande do Norte, Av. Campus Universitário, Av. Salgado Filho 3000, Lagoa Nova, Natal CEP59078-970, RN, Brazil
- National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM), Institute of Chemistry, Universidade Estadual Paulista, Araraquara CEP14800-900, SP, Brazil
| | - Elisama V. Santos
- National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM), Institute of Chemistry, Universidade Estadual Paulista, Araraquara CEP14800-900, SP, Brazil
- School of Science and Technology, Federal University of Rio Grande do Norte, Av. Campus Universitário, Av. Salgado Filho 3000, Lagoa Nova, Natal CEP59078-970, RN, Brazil
| | - Carlos A. Martínez-Huitle
- Institute of Chemistry, Federal University of Rio Grande do Norte, Av. Campus Universitário, Av. Salgado Filho 3000, Lagoa Nova, Natal CEP59078-970, RN, Brazil
- National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM), Institute of Chemistry, Universidade Estadual Paulista, Araraquara CEP14800-900, SP, Brazil
| | - Pollyana Souza Castro
- Institute of Chemistry, Federal University of Rio Grande do Norte, Av. Campus Universitário, Av. Salgado Filho 3000, Lagoa Nova, Natal CEP59078-970, RN, Brazil
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Saravanakumar V, Rajagopal V, Kathiresan M, Suryanarayanan V, Anandan S, Ho KC. Cu-MOF derived CuO nanoparticle decorated amorphous carbon as an electrochemical platform for the sensing of caffeine in real samples. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2022.104248] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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3
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Nikpanje E, Bahmaei M, Sharif AM. Determination of Ascorbic Acid, Acetaminophen, and Caffeine in Urine, Blood Serum by Electrochemical Sensor Based on ZnO-Zn2SnO4-SnO2 Nanocomposite and Graphene. J ELECTROCHEM SCI TE 2021. [DOI: 10.33961/jecst.2020.00724] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Manousi N, Deliyanni EA, Rosenberg E, Zachariadis GA. Magnetic solid-phase extraction of caffeine from surface water samples with a micro–meso porous activated carbon/Fe 3O 4 nanocomposite prior to its determination by GC-MS. RSC Adv 2021; 11:19492-19499. [PMID: 35479258 PMCID: PMC9033622 DOI: 10.1039/d1ra01564h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 05/10/2021] [Indexed: 12/24/2022] Open
Abstract
A novel micro–meso porous activated carbon/Fe3O4 (Bm) composite was synthesized from the active charcoal precursor BAX-1500 and used in the magnetic solid-phase extraction (MSPE) of caffeine prior to its determination by gas chromatography-mass spectrometry (GC-MS). The main factors affecting the extraction and desorption steps of the MSPE procedure were investigated and optimized. These factors include extraction time, sorbent mass and salt addition for the adsorption step and type of eluent, desorption time and volume of desorption solution for the desorption step. Under optimum conditions, the absolute extraction recovery was found to be 91.1% and good linearity was observed in the investigated concentration range of 0.6–12.5 ng mL−1 (R2 = 0.9997). The limit of detection was 0.18 ng mL−1 and the limit of quantification was 0.60 ng mL−1. The method was successfully applied to the analysis of surface water samples. The proposed MSPE method is simple, rapid, sensitive and environmentally friendly. A novel magnetic solid phase material based on a micro–meso porous activated carbon/Fe3O4 nanocomposite was used to extract caffeine from surface water samples. The method is efficient and rapid, and has minimum solvent consumption.![]()
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Affiliation(s)
- Natalia Manousi
- Laboratory of Analytical Chemistry
- Department of Chemistry
- Aristotle University of Thessaloniki
- Thessaloniki 54124
- Greece
| | - Eleni A. Deliyanni
- Laboratory of Chemical and Environmental Technology
- Department of Chemistry
- Aristotle University of Thessaloniki
- Thessaloniki 54124
- Greece
| | - Erwin Rosenberg
- Institute of Chemical Technologies and Analytics
- Vienna University of Technology
- Austria
| | - George A. Zachariadis
- Laboratory of Analytical Chemistry
- Department of Chemistry
- Aristotle University of Thessaloniki
- Thessaloniki 54124
- Greece
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Kim U, Karthikraj R. Solid‐phase microextraction for the human biomonitoring of environmental chemicals: Current applications and future perspectives. J Sep Sci 2020; 44:247-273. [DOI: 10.1002/jssc.202000830] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 10/18/2020] [Accepted: 11/13/2020] [Indexed: 01/09/2023]
Affiliation(s)
- Un‐Jung Kim
- Department of Earth & Environmental Sciences University of Texas at Arlington Arlington Texas USA
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6
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Shehata M, Azab S, Fekry A. Facile caffeine electrochemical detection via electrodeposited Ag nanoparticles with modifier polymers on carbon paste sensor at aqueous and micellar media. CAN J CHEM 2020. [DOI: 10.1139/cjc-2019-0195] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The analysis and detection of caffeine (Caf) is very useful due to its widespread usage in several daily consumed beverages, food products, and pharmacological preparations with various physiological effects. The preparation of a newly electrodeposited Ag nanoparticles – cellulose acetate phthalate (CAP) – chitosan (Chit) modified carbon paste (ACCMCP) sensor for sensitive determination of Caf in 0.01 mol L−1 H3PO4 solution (pH 1.0–5.0) both in aqueous and micellar media (0.5 mmol L−1 SDS) was achieved. The interaction of Caf was monitored using electrochemical techniques such as cyclic voltammetry, differential pulse voltammetry, electrochemical impedance spectroscopy, and chronoamperometry, and surface characterization was carried out using X-ray diffraction, scanning electron microscope, and energy dispersive X-ray techniques. The linear detection range of Caf was between 4 and 500 μmol L−1 (r2 = 0.955) and the limit of detection obtained from the calibration plot was 0.252 μmol L−1. The sensor was applicable for detecting Caf in numerous real samples with recoveries from 98.03% to 101.60% without interference of any accompanying species, which ensures high method selectivity.
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Affiliation(s)
- M. Shehata
- Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Egypt
| | - S.M. Azab
- Pharmaceutical Chemistry Dept., National Organization for Drug Control and Research (NODCAR), Giza 29, Egypt
| | - A.M. Fekry
- Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Egypt
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Rahimi M, Bahar S, Heydari R, Amininasab SM. Determination of quercetin using a molecularly imprinted polymer as solid-phase microextraction sorbent and high-performance liquid chromatography. Microchem J 2019. [DOI: 10.1016/j.microc.2019.05.032] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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8
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Corn-like stationary phase for solid phase microextraction prepared by electro-assisted deposition of sol-gel/silica nanoparticles composite. Microchem J 2019. [DOI: 10.1016/j.microc.2019.04.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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9
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Preparation and characterization of a novel nanocomposite coating based on sol-gel titania/hydroxyapatite for solid-phase microextraction. Microchem J 2019. [DOI: 10.1016/j.microc.2018.12.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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10
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Alarfaj NA, Al-tamimi SA, El-Tohamy MF, Al-dughmi MS. Prospects for using a new sequential chemiluminescence strategy for monitoring the caffeine content in soft and energy drinks via the catalytic activities of different nano-metal oxides. LUMINESCENCE 2019; 34:222-233. [DOI: 10.1002/bio.3599] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 01/02/2019] [Indexed: 11/07/2022]
Affiliation(s)
- Nawal A. Alarfaj
- Department of Chemistry, College of Science; King Saud University; P.O. Box 22452 Riyadh Saudi Arabia
| | - Salma A. Al-tamimi
- Department of Chemistry, College of Science; King Saud University; P.O. Box 22452 Riyadh Saudi Arabia
| | - Maha F. El-Tohamy
- Department of Chemistry, College of Science; King Saud University; P.O. Box 22452 Riyadh Saudi Arabia
| | - Maha S. Al-dughmi
- Department of Chemistry, College of Science; King Saud University; P.O. Box 22452 Riyadh Saudi Arabia
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11
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Azab SM, Shehata M, Fekry AM. A novel electrochemical analysis of the legal psychoactive drug caffeine using a zeolite/MWCNT modified carbon paste sensor. NEW J CHEM 2019. [DOI: 10.1039/c9nj04070f] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Caffeine (Caf) is a natural central nervous system stimulant categorized by the US Food and Drug Administration as a safe drug and its maximal amount in soft drinks has been approximately determined to be lower than 200 mg L−1.
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Affiliation(s)
- Shereen M. Azab
- Pharmaceutical Chemistry Dept
- National Organization for Drug Control and Research [NODCAR]
- 6 Abu Hazem Street
- Pyramids Ave, 29
- Giza
| | - M. Shehata
- Chemistry Department
- Faculty of Science
- Cairo University
- Giza 12613
- Egypt
| | - Amany M. Fekry
- Chemistry Department
- Faculty of Science
- Cairo University
- Giza 12613
- Egypt
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12
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Zhong L, Li X, Liu R, Wei X, Li J. A visible-light-driven photoelectrochemical molecularly imprinted sensor based on titanium dioxide nanotube arrays loaded with silver iodide nanoparticles for the sensitive detection of benzoyl peroxide. Analyst 2019; 144:3405-3413. [DOI: 10.1039/c9an00234k] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A novel ultrasensitive photoelectrochemical sensor for benzoyl peroxide (BPO) was constructed under visible light irradiation.
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Affiliation(s)
- Li Zhong
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- Guangxi Colleges and Universities Key Laboratory of Food Safety and Detection
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
| | - Xiuqi Li
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- Guangxi Colleges and Universities Key Laboratory of Food Safety and Detection
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
| | - Ruilin Liu
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- Guangxi Colleges and Universities Key Laboratory of Food Safety and Detection
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
| | - Xiaoping Wei
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- Guangxi Colleges and Universities Key Laboratory of Food Safety and Detection
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
| | - Jianping Li
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- Guangxi Colleges and Universities Key Laboratory of Food Safety and Detection
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
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13
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Selective determination of caffeine in foods with 3D-graphene based ultrasound-assisted magnetic solid phase extraction. Food Chem 2018; 262:206-214. [DOI: 10.1016/j.foodchem.2018.04.035] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 03/28/2018] [Accepted: 04/12/2018] [Indexed: 11/23/2022]
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14
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Ma JK, Huang XC, Wei SL. Preparation and application of chlorpyrifos molecularly imprinted solid-phase microextraction probes for the residual determination of organophosphorous pesticides in fresh and dry foods. J Sep Sci 2018; 41:3152-3162. [PMID: 29878613 DOI: 10.1002/jssc.201800385] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 05/28/2018] [Accepted: 05/28/2018] [Indexed: 02/05/2023]
Abstract
A solid-phase microextraction probe was prepared on the surface of a stainless-steel wire through molecular sol-gel imprinting technology using chlorpyrifos as a template molecule, tetraethoxysilane as a sol-gel precursor, and acrylamide and β-cyclodextrin as functional monomers. The polymer was characterized by infrared spectrometry and scanning electron microscopy. Moreover, the selectivity and the parameters including the type and volume of the extraction solvents, ionic strength, pH, temperature, extraction time, stirring speed, and desorption time affecting extraction performance were evaluated. Under the optimum solid-phase microextraction and gas chromatography conditions, the linear ranges were 0.25-25.0 μg/L for chlorpyrifos, quinalphos, triazophos, pirimiphos-methyl, and chlorpyrifos-methyl with the correlation coefficient above 0.99. The detection limits (S/N = 3) were in the range of 0.02-0.07 μg/L and the RSDs were <7.3%. The developed method was successfully used to determine the multi-residues of chlorpyrifos, quinalphos, triazophos, pirimiphos-methyl, and chlorpyrifos-methyl in green peppers and cinnamon with satisfactory recoveries.
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Affiliation(s)
- Jin-Kui Ma
- School of Food & Pharmaceutical Engineering, Zhaoqing University, Zhaoqing, P. R. China
| | - Xiao-Chen Huang
- School of Food & Pharmaceutical Engineering, Zhaoqing University, Zhaoqing, P. R. China
| | - Shou-Lian Wei
- College of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing, P. R. China
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15
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Keçili R, Hussain CM. Recent Progress of Imprinted Nanomaterials in Analytical Chemistry. Int J Anal Chem 2018; 2018:8503853. [PMID: 30057612 PMCID: PMC6051082 DOI: 10.1155/2018/8503853] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 06/03/2018] [Indexed: 11/17/2022] Open
Abstract
Molecularly imprinted polymers (MIPs) are a type of tailor-made materials that have ability to selectively recognize the target compound/s. MIPs have gained significant research interest in solid-phase extraction, catalysis, and sensor applications due to their unique properties such as low cost, robustness, and high selectivity. In addition, MIPs can be prepared as composite nanomaterials using nanoparticles, multiwalled carbon nanotubes (MWCNTs), nanorods, quantum dots (QDs), graphene, and clays. This review paper aims to demonstrate and highlight the recent progress of the applications of imprinted nanocomposite materials in analytical chemistry.
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Affiliation(s)
- Rüstem Keçili
- Anadolu University, Yunus Emre Vocational School of Health Services, Department of Medical Services and Techniques, 26470 Eskişehir, Turkey
| | - Chaudhery Mustansar Hussain
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, N J 07102, USA
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Reyes-Garcés N, Gionfriddo E, Gómez-Ríos GA, Alam MN, Boyacı E, Bojko B, Singh V, Grandy J, Pawliszyn J. Advances in Solid Phase Microextraction and Perspective on Future Directions. Anal Chem 2017; 90:302-360. [DOI: 10.1021/acs.analchem.7b04502] [Citation(s) in RCA: 402] [Impact Index Per Article: 57.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
| | | | | | - Md. Nazmul Alam
- Department of Chemistry, University of Waterloo, Ontario, Canada N2L 3G1
| | - Ezel Boyacı
- Department of Chemistry, Middle East Technical University, Ankara 06800, Turkey
| | - Barbara Bojko
- Department of Pharmacodynamics and Molecular Pharmacology, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-067 Bydgoszcz, Poland
| | - Varoon Singh
- Department of Chemistry, University of Waterloo, Ontario, Canada N2L 3G1
| | - Jonathan Grandy
- Department of Chemistry, University of Waterloo, Ontario, Canada N2L 3G1
| | - Janusz Pawliszyn
- Department of Chemistry, University of Waterloo, Ontario, Canada N2L 3G1
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17
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Ma X, Feng F, Yang Y, Dang X, Huang J, Chen H. Magnetic Solid-Phase Extraction of N,N-Diethyl-m-Toluamide From Baby Toilet Water Prior to its HPLC–UV Detection. J Chromatogr Sci 2017; 55:662-668. [DOI: 10.1093/chromsci/bmx015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2016] [Accepted: 02/21/2017] [Indexed: 11/15/2022]
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18
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Trani A, Petrucci R, Marrosu G, Zane D, Curulli A. Selective electrochemical determination of caffeine at a gold-chitosan nanocomposite sensor: May little change on nanocomposites synthesis affect selectivity? J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2017.01.049] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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19
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Safdarian M, Ramezani Z, Ghadiri AA. Facile synthesis of magnetic molecularly imprinted polymer: Perphenazine template and its application in urine and plasma analysis. J Chromatogr A 2016; 1455:28-36. [DOI: 10.1016/j.chroma.2016.05.083] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 05/23/2016] [Accepted: 05/24/2016] [Indexed: 10/21/2022]
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20
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Filik H, Avan AA, Mümin Y. Simultaneous Electrochemical Determination of Caffeine and Vanillin by Using Poly(Alizarin Red S) Modified Glassy Carbon Electrode. FOOD ANAL METHOD 2016. [DOI: 10.1007/s12161-016-0545-z] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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21
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Chitravathi S, Munichandraiah N. Voltammetric determination of paracetamol, tramadol and caffeine using poly(Nile blue) modified glassy carbon electrode. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.01.021] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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22
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23
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Li N, Zhu Q, Yang Y, Huang J, Dang X, Chen H. A novel dispersive solid-phase extraction method using metal-organic framework MIL-101 as the adsorbent for the analysis of benzophenones in toner. Talanta 2015; 132:713-8. [DOI: 10.1016/j.talanta.2014.10.038] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Revised: 10/12/2014] [Accepted: 10/16/2014] [Indexed: 10/24/2022]
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24
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Luo X, Guo B, Wang L, Deng F, Qi R, Luo S, Au C. Synthesis of magnetic ion-imprinted fluorescent CdTe quantum dots by chemical etching and their visualization application for selective removal of Cd(II) from water. Colloids Surf A Physicochem Eng Asp 2014. [DOI: 10.1016/j.colsurfa.2014.09.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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25
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Rezaei B, Khalili Boroujeni M, Ensafi AA. Caffeine electrochemical sensor using imprinted film as recognition element based on polypyrrole, sol-gel, and gold nanoparticles hybrid nanocomposite modified pencil graphite electrode. Biosens Bioelectron 2014; 60:77-83. [DOI: 10.1016/j.bios.2014.03.028] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2014] [Revised: 03/11/2014] [Accepted: 03/12/2014] [Indexed: 10/25/2022]
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26
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Deng F, Liu Y, Luo X, Wu S, Luo S, Au C, Qi R. Sol-hydrothermal synthesis of inorganic-framework molecularly imprinted TiO2/SiO2 nanocomposite and its preferential photocatalytic degradation towards target contaminant. JOURNAL OF HAZARDOUS MATERIALS 2014; 278:108-115. [PMID: 24953942 DOI: 10.1016/j.jhazmat.2014.05.088] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Revised: 05/28/2014] [Accepted: 05/29/2014] [Indexed: 06/03/2023]
Abstract
Inorganic-framework molecularly imprinted TiO2/SiO2 nanocomposite (MIP-TiO2/SiO2) was successfully prepared by sol-hydrothermal method using 4-nitrophenol as template. The morphology, structure, optical property, zeta-potential and photocurrent of MIP-TiO2/SiO2 were characterized. The adsorption performance and photocatalytic selectivity were also studied. MIP-TiO2/SiO2 shows higher adsorption capacity and selectivity than the non-imprinted TiO2/SiO2 (NIP-TiO2/SiO2). Kinetics results show that the adsorption equilibrium of 4-nitrophenol on MIP-TiO2/SiO2 is established within 20 min, and the adsorption process obeys the pseudo-second-order model. Moreover, MIP-TiO2/SiO2 can completely degrade 4-nitrophenol within 30 min, while NIP-TiO2/SiO2 takes 110 min. It was found that the MIP-TiO2/SiO2 photocatalyst shows molecular recognition ability, leading to selective adsorption and molecular recognitive photocatalytic degradation of 4-nitrophenol. Furthermore, because of its inorganic framework, MIP-TiO2/SiO2 shows excellent reusability.
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Affiliation(s)
- Fang Deng
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang 330063, PR China; College of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, PR China
| | - Yin Liu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang 330063, PR China; College of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, PR China
| | - Xubiao Luo
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang 330063, PR China; College of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, PR China.
| | - Shaolin Wu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang 330063, PR China; College of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, PR China
| | - Shenglian Luo
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang 330063, PR China; College of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, PR China.
| | - Chaktong Au
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, PR China
| | - Ruoxi Qi
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang 330063, PR China; College of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, PR China
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Recent advances in solid-phase sorbents for sample preparation prior to chromatographic analysis. Trends Analyt Chem 2014. [DOI: 10.1016/j.trac.2014.03.011] [Citation(s) in RCA: 280] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Miskam M, Abu Bakar NK, Mohamad S. Determination of polar aromatic amines using newly synthesized sol-gel titanium (IV) butoxide cyanopropyltriethoxysilane as solid phase extraction sorbent. Talanta 2013; 120:450-5. [PMID: 24468395 DOI: 10.1016/j.talanta.2013.12.037] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Revised: 12/13/2013] [Accepted: 12/16/2013] [Indexed: 10/25/2022]
Abstract
A solid phase extraction (SPE) method has been developed using a newly synthesized titanium (IV) butoxide-cyanopropyltriethoxysilane (Ti-CNPrTEOS) sorbent for polar selective extraction of aromatic amines in river water sample. The effect of different parameters on the extraction recovery was studied using the SPE method. The applicability of the sorbents for the extraction of polar aromatic amines by the SPE was extensively studied and evaluated as a function of pH, conditioning solvent, sample loading volume, elution solvent and elution solvent volume. The optimum experimental conditions were sample at pH 7, dichloromethane as conditioning solvent, 10 mL sample loading volume and 5 mL of acetonitrile as the eluting solvent. Under the optimum conditions, the limit of detection (LOD) and limit of quantification (LOQ) for solid phase extraction using Ti-CNPrTEOS SPE sorbent (0.01-0.2; 0.03-0.61 µg L(-1)) were lower compared with those achieved using Si-CN SPE sorbent (0.25-1.50; 1.96-3.59 µg L(-1)) and C18 SPE sorbent (0.37-0.98; 1.87-2.87 µg L(-1)) with higher selectivity towards the extraction of polar aromatic amines. The optimized procedure was successfully applied for the solid phase extraction method of selected aromatic amines in river water, waste water and tap water samples prior to the gas chromatography-flame ionization detector separation.
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Affiliation(s)
- Mazidatulakmam Miskam
- Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia; Department of Chemistry, Kulliyyah of Science, International Islamic University Malaysia, Bandar Indera Mahkota, 25200 Kuantan, Pahang, Malaysia.
| | - Nor Kartini Abu Bakar
- Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Sharifah Mohamad
- Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
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Sol–gel molecularly imprinted polymer for selective solid phase microextraction of organophosphorous pesticides. Talanta 2013; 115:920-7. [DOI: 10.1016/j.talanta.2013.06.056] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Revised: 06/21/2013] [Accepted: 06/28/2013] [Indexed: 11/22/2022]
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Tong Y, Li H, Guan H, Zhao J, Majeed S, Anjum S, Liang F, Xu G. Electrochemical cholesterol sensor based on carbon nanotube@molecularly imprinted polymer modified ceramic carbon electrode. Biosens Bioelectron 2013; 47:553-8. [DOI: 10.1016/j.bios.2013.03.072] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Revised: 03/19/2013] [Accepted: 03/28/2013] [Indexed: 10/27/2022]
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Preparation, characterization and application of organic–inorganic hybrid caffeine imprinted monolith. J Chromatogr A 2013; 1304:10-7. [DOI: 10.1016/j.chroma.2013.06.060] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Revised: 06/23/2013] [Accepted: 06/24/2013] [Indexed: 11/18/2022]
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33
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Kailasa SK, Wu HF. Recent Advances in Mass Spectrometry for the Identification of Neuro-chemicals and their Metabolites in Biofluids. Curr Neuropharmacol 2013; 11:436-64. [PMID: 24381533 PMCID: PMC3744906 DOI: 10.2174/1570159x11311040007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Revised: 04/05/2013] [Accepted: 04/09/2013] [Indexed: 11/22/2022] Open
Abstract
Recently, mass spectrometric related techniques have been widely applied for the identification and quantification of neurochemicals and their metabolites in biofluids. This article presents an overview of mass spectrometric techniques applied in the detection of neurological substances and their metabolites from biological samples. In addition, the advances of chromatographic methods (LC, GC and CE) coupled with mass spectrometric techniques for analysis of neurochemicals in pharmaceutical and biological samples are also discussed.
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Affiliation(s)
- Suresh Kumar Kailasa
- Department of Applied Chemistry, S. V. National Institute of Technology, Surat – 395007, India
| | - Hui-Fen Wu
- Department of Chemistry, National Sun Yat-Sen University, Kaohsiung, 80424, Taiwan
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, 800, Kaohsiung, Taiwan
- Center for Nanoscience and Nanotechnology, National Sun Yat-Sen University, Kaohsiung, 80424, Taiwan
- Doctoral Degree Program in Marine Biotechnology, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
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A molecularly imprinted polymer with incorporated graphene oxide for electrochemical determination of quercetin. SENSORS 2013; 13:5493-506. [PMID: 23698263 PMCID: PMC3690011 DOI: 10.3390/s130505493] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Revised: 04/11/2013] [Accepted: 04/12/2013] [Indexed: 11/28/2022]
Abstract
The molecularly imprinted polymer based on polypyrrole film with incorporated graphene oxide was fabricated and used for electrochemical determination of quercetin. The electrochemical behavior of quercetin on the modified electrode was studied in detail using differential pulse voltammetry. The oxidation peak current of quercetin in B-R buffer solution (pH = 3.5) at the modified electrode was regressed with the concentration in the range from 6.0 × 10−7 to 1.5 × 10−5 mol/L (r2 = 0.997) with a detection limit of 4.8 × 10−8 mol/L (S/N = 3). This electrode showed good stability and reproducibility. In the above mentioned range, rutin or morin which has similar structures and at the same concentration as quercetin did not interfere with the determination of quercetin. The applicability of the method for complex matrix analysis was also evaluated.
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Kabir A, Furton KG, Malik A. Innovations in sol-gel microextraction phases for solvent-free sample preparation in analytical chemistry. Trends Analyt Chem 2013. [DOI: 10.1016/j.trac.2012.11.014] [Citation(s) in RCA: 112] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Mu L, Hu X, Wen J, Zhou Q. Robust aptamer sol–gel solid phase microextraction of very polar adenosine from human plasma. J Chromatogr A 2013; 1279:7-12. [DOI: 10.1016/j.chroma.2013.01.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2012] [Revised: 12/22/2012] [Accepted: 01/03/2013] [Indexed: 01/28/2023]
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Hu Y, Pan J, Zhang K, Lian H, Li G. Novel applications of molecularly-imprinted polymers in sample preparation. Trends Analyt Chem 2013. [DOI: 10.1016/j.trac.2012.08.014] [Citation(s) in RCA: 150] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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