51
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Chang T, Liu Y, Yan X, Liu S, Zheng H. One-pot synthesis of uniform and monodisperse superparamagnetic molecularly imprinted polymer nanospheres through a sol–gel process for selective recognition of bisphenol A in aqueous media. RSC Adv 2016. [DOI: 10.1039/c6ra10740k] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Uniform and monodisperse Fe3O4@MIP nanospheres were directly synthesized using a sol–gel method on the surface of Fe3O4–COOH spheres.
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Affiliation(s)
- Tingting Chang
- Department of Chemistry
- University of Science and Technology of China
- Hefei
- China
| | - Yuxin Liu
- Technology Centre
- Anhui Entry-Exit Inspection and Quarantine Bureau
- Hefei 230022
- P. R. China
| | - Xiangyang Yan
- Department of Chemistry
- University of Science and Technology of China
- Hefei
- China
| | - Shaomin Liu
- Department of Chemistry
- University of Science and Technology of China
- Hefei
- China
| | - Haisong Zheng
- Technology Centre
- Anhui Entry-Exit Inspection and Quarantine Bureau
- Hefei 230022
- P. R. China
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52
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Tang Z, Liu Y, Duan Y. Development of solid-phase microextraction fibers based on multi-walled carbon nanotubes for pre-concentration and analysis of alkanes in human breath. J Chromatogr A 2015; 1425:34-41. [DOI: 10.1016/j.chroma.2015.11.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Revised: 11/04/2015] [Accepted: 11/04/2015] [Indexed: 10/22/2022]
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53
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Asadi M, Haji Shabani AM, Dadfarnia S, Abbasi B. Vortex-assisted surfactant-enhanced emulsification microextraction based on solidification of floating organic drop combined with high performance liquid chromatography for determination of naproxen and nabumetone. J Chromatogr A 2015; 1425:17-24. [DOI: 10.1016/j.chroma.2015.11.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Revised: 10/06/2015] [Accepted: 11/02/2015] [Indexed: 11/24/2022]
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54
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Zhang X, Zang X, Zhang G, Wang C, Wang Z. Application of mesoporous carbon as a solid-phase microextraction fiber coating for the extraction of volatile aromatic compounds. J Sep Sci 2015; 38:2880-6. [DOI: 10.1002/jssc.201500304] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Revised: 05/25/2015] [Accepted: 05/27/2015] [Indexed: 11/12/2022]
Affiliation(s)
- Xi Zhang
- Department of Chemistry; College of Science, Agricultural University of Hebei; Baoding China
| | - Xiaohuan Zang
- Department of Chemistry; College of Science, Agricultural University of Hebei; Baoding China
| | - Guijiang Zhang
- Department of Chemistry; College of Science, Agricultural University of Hebei; Baoding China
| | - Chun Wang
- Department of Chemistry; College of Science, Agricultural University of Hebei; Baoding China
| | - Zhi Wang
- Department of Chemistry; College of Science, Agricultural University of Hebei; Baoding China
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55
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Amanzadeh H, Yamini Y, Moradi M. Zinc oxide/polypyrrole nanocomposite as a novel solid phase microextraction coating for extraction of aliphatic hydrocarbons from water and soil samples. Anal Chim Acta 2015; 884:52-60. [PMID: 26073809 DOI: 10.1016/j.aca.2015.05.018] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Revised: 05/07/2015] [Accepted: 05/08/2015] [Indexed: 11/13/2022]
Abstract
In this work, ZnO/PPy nanocomposite coating was fabricated on stainless steel and evaluated as a novel headspace solid phase microextraction (HS-SPME) fiber coating for extraction of ultra-trace amounts of environmental pollutants; namely, aliphatic hydrocarbons in water and soil samples. The ZnO/PPy nanocomposite were prepared by a two-step process including the electrochemical deposition of PPy on the surface of stainless steel in the first step, and the synthesis of ZnO nanorods by hydrothermal process in the pores of PPy matrix in the second step. Porous structure together with ZnO nanorods with the average diameter of 70 nm were observed on the surface by using scanning electron microscopy (SEM). The effective parameters on HS-SPME of hydrocarbons (i.e., extraction temperature, extraction time, desorption temperature, desorption time, salt concentration, and stirring rate) were investigated and optimized by one-variable-at-a-time method. Under optimized conditions (extraction temperature, 65±1°C; extraction time, 15 min; desorption temperature, 250°C; desorption time, 3 min; salt concentration, 10% w/v; and stirring rate, 1200 rpm), the limits of detection (LODs) were found in the range of 0.08-0.5 μg L(-1), whereas the repeatability and fiber-to-fiber reproducibility were in the range 5.4-7.6% and 8.6-10.4%, respectively. Also, the accuracies obtained for the spiked n-alkanes were in the range of 85-108%; indicating the absence of matrix effects in the proposed HS-SPME method. The results obtained in this work suggest that ZnO/PPy can be promising coating materials for future applications of SPME and related sample preparation techniques.
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Affiliation(s)
- Hatam Amanzadeh
- Department of Chemistry, Tarbiat Modares University, P.O. Box 14115-175 Tehran, Iran
| | - Yadollah Yamini
- Department of Chemistry, Tarbiat Modares University, P.O. Box 14115-175 Tehran, Iran
| | - Morteza Moradi
- Department of Semiconductors, Materials and Energy Research Center, Karaj, Iran
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56
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Huang S, Zhu F, Jiang R, Zhou S, Zhu D, Liu H, Ouyang G. Determination of eight pharmaceuticals in an aqueous sample using automated derivatization solid-phase microextraction combined with gas chromatography–mass spectrometry. Talanta 2015; 136:198-203. [DOI: 10.1016/j.talanta.2014.11.071] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Revised: 10/25/2014] [Accepted: 11/01/2014] [Indexed: 01/18/2023]
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57
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Beldean-Galea MS, Coman V, Thiébaut D, Vial J. Determination of four acidic nonsteroidal anti-inflammatory drugs in wastewater samples by dispersive liquid-liquid microextraction based on solidification of floating organic droplet and high-performance liquid chromatography. J Sep Sci 2015; 38:641-8. [DOI: 10.1002/jssc.201400933] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Revised: 11/22/2014] [Accepted: 11/25/2014] [Indexed: 11/07/2022]
Affiliation(s)
| | - Virginia Coman
- Babeş-Bolyai University; Raluca Ripan Institute for Research in Chemistry; Cluj-Napoca Romania
| | - Didier Thiébaut
- École Supérieure de Physique et de Chimie Industrielles de la Ville de Paris; Paris France
| | - Jérome Vial
- École Supérieure de Physique et de Chimie Industrielles de la Ville de Paris; Paris France
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58
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Anticodeine aptamer immobilized on a Whatman cellulose paper for thin-film microextraction of codeine from urine followed by electrospray ionization ion mobility spectrometry. Anal Bioanal Chem 2014; 407:1615-23. [PMID: 25524232 DOI: 10.1007/s00216-014-8392-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2014] [Revised: 12/01/2014] [Accepted: 12/04/2014] [Indexed: 01/22/2023]
Abstract
A combination of thin-film microextaction based on an aptamer immobilized on modified Whatman cellulose paper followed by electrospray ionization ion mobility spectrometry has been developed for the analysis of codeine in urine samples. The immobilization is based on the covalent linking of an amino-modified anticodeine aptamer to aldehyde groups of the oxidized cellulose paper. The covalent bonds were examined by infrared spectroscopy and elemental analysis. The effect of the extraction parameters, including the elution conditions (solvent type and volume), extraction time, and extraction temperature, on the extraction efficiency were investigated. Under the optimized conditions, the linear dynamic range was found to be 10-300 ng/mL with a detection limit of 3.4 ng/mL for codeine in urine. The relative standard deviation was 6.8% for three replicate measurements of codeine at 100 ng/mL in urine. Furthermore, the samples were analyzed with a standard method for the analysis of codeine using high-performance liquid chromatography with ultraviolet detection. The comparison of the results validates the accuracy of the proposed method as an alternative method for the analysis of codeine in urine samples.
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59
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Matin AA, Biparva P, Gheshlaghi M. Gas chromatographic determination of polycyclic aromatic hydrocarbons in water and smoked rice samples after solid-phase microextraction using multiwalled carbon nanotube loaded hollow fiber. J Chromatogr A 2014; 1374:50-57. [DOI: 10.1016/j.chroma.2014.11.048] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2014] [Revised: 11/14/2014] [Accepted: 11/17/2014] [Indexed: 10/24/2022]
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60
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Es’haghi Z, Esmaeili-Shahri E. Sol–gel-derived magnetic SiO2/TiO2 nanocomposite reinforced hollow fiber-solid phase microextraction for enrichment of non-steroidal anti-inflammatory drugs from human hair prior to high performance liquid chromatography. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 973C:142-151. [DOI: 10.1016/j.jchromb.2014.09.030] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Revised: 09/19/2014] [Accepted: 09/20/2014] [Indexed: 11/28/2022]
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61
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Panahi HA, Tahmouresi B, Moniri E, Manoochehri M. Synthesis and Characterization of Polymer Brushes Containing β-Cyclodextrin Grafted to Magnetic Nanoparticles for Determination of Naproxen in Urine. ANAL LETT 2014. [DOI: 10.1080/00032719.2014.928885] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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62
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Tahermansouri H, Ahi RM, Kiani F. Kinetic, Equilibrium and Isotherm Studies of Cadmium Removal from Aqueous Solutions by Oxidized Multi-Walled Carbon Nanotubes and the Functionalized Ones with Thiosemicarbazide and Their Toxicity Investigations: A Comparison. J CHIN CHEM SOC-TAIP 2014. [DOI: 10.1002/jccs.201400197] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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63
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Sarafraz-Yazdi A, Rounaghi G, Razavipanah I, Vatani H, Amiri A. New polypyrrole-carbon nanotubes-silicon dioxide solid-phase microextraction fiber for the preconcentration and determination of benzene, toluene, ethylbenzene, and o-xylene using gas liquid chromatography. J Sep Sci 2014; 37:2605-12. [PMID: 24995551 DOI: 10.1002/jssc.201400178] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Revised: 05/28/2014] [Accepted: 06/22/2014] [Indexed: 11/07/2022]
Abstract
For the first time, a polypyrrole-carbon nanotubes-silicon dioxide composite film coated on a steel wire was prepared by an electrochemical method. Scanning electron microscopy images showed that this composite film was even and porous. The prepared fiber was used as an absorbent for the headspace solid-phase microextraction of benzene, toluene, ethylbenzene, and o-xylene, followed by gas chromatographic analysis. This method presented an excellent performance, which was much better than that of a polypyrrole-carbon nanotube fiber. It was found that under the optimized conditions, the linear ranges were 0.01-200 ng/mL with correlation coefficients >0.9953, the detection limits were 0.005-0.020 ng/mL, the relative standard deviations were 3.9-6.4% for five successive measurements with a single fiber, and the reproducibility was 5.5-8.5% (n = 3). Finally, the developed method was successfully applied to real water samples, and the relative recoveries obtained for the spiked water samples were from 91.0 to 106.7%.
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Affiliation(s)
- Ali Sarafraz-Yazdi
- Department of Chemistry, Faculty of Sciences, Ferdowsi University of Mashhad, Iran
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64
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Recent applications of carbon nanotube sorbents in analytical chemistry. J Chromatogr A 2014; 1357:110-46. [DOI: 10.1016/j.chroma.2014.05.035] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Revised: 05/12/2014] [Accepted: 05/13/2014] [Indexed: 01/10/2023]
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65
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Liang X, Liu S, Wang S, Guo Y, Jiang S. Carbon-based sorbents: Carbon nanotubes. J Chromatogr A 2014; 1357:53-67. [DOI: 10.1016/j.chroma.2014.04.039] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Revised: 04/11/2014] [Accepted: 04/11/2014] [Indexed: 10/25/2022]
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66
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Ghaemi F, Amiri A, Yunus R. Methods for coating solid-phase microextraction fibers with carbon nanotubes. Trends Analyt Chem 2014. [DOI: 10.1016/j.trac.2014.04.011] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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67
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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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68
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Liu Q, Zhou Q, Jiang G. Nanomaterials for analysis and monitoring of emerging chemical pollutants. Trends Analyt Chem 2014. [DOI: 10.1016/j.trac.2014.02.014] [Citation(s) in RCA: 83] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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69
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Bagheri H, Roostaie A, Baktash MY. A chitosan–polypyrrole magnetic nanocomposite as μ-sorbent for isolation of naproxen. Anal Chim Acta 2014; 816:1-7. [DOI: 10.1016/j.aca.2014.01.028] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Revised: 01/07/2014] [Accepted: 01/09/2014] [Indexed: 10/25/2022]
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70
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Recent developments and future trends in solid phase microextraction techniques towards green analytical chemistry. J Chromatogr A 2013; 1321:1-13. [DOI: 10.1016/j.chroma.2013.10.030] [Citation(s) in RCA: 202] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2013] [Revised: 09/19/2013] [Accepted: 10/09/2013] [Indexed: 01/17/2023]
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71
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Preparation of graphene-coated solid-phase microextraction fiber and its application on organochlorine pesticides determination. J Chromatogr A 2013; 1300:187-92. [DOI: 10.1016/j.chroma.2012.11.072] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2012] [Revised: 11/22/2012] [Accepted: 11/23/2012] [Indexed: 11/20/2022]
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72
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73
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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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74
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Abstract
The extraction and/or purification of drugs and medicines from biological matrices are important objectives in investigating their toxicological and pharmaceutical properties. Many widely used methods such as liquid–liquid extraction or SPE, used for extracting, purifying and enriching drugs and medicines found in biological materials, involve laborious, intensive and expensive preparatory procedures, and they require organic solvents that are toxic to both humans and the environment. Recent trends are focused on miniaturization, high-throughput and automation techniques. All the advantages and disadvantages of these techniques and devices in biological analysis are presented, and their applications in the extraction and/or purification of drugs and medicines from biological matrices are discussed in this review.
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75
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Cork as a new (green) coating for solid-phase microextraction: Determination of polycyclic aromatic hydrocarbons in water samples by gas chromatography–mass spectrometry. Anal Chim Acta 2013; 772:33-9. [DOI: 10.1016/j.aca.2013.02.021] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2012] [Revised: 02/01/2013] [Accepted: 02/13/2013] [Indexed: 11/22/2022]
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76
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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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77
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Application of sol–gel based octyl-functionalized mesoporous materials coated fiber for solid-phase microextraction. Talanta 2013; 105:204-10. [DOI: 10.1016/j.talanta.2012.11.074] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2012] [Revised: 11/24/2012] [Accepted: 11/28/2012] [Indexed: 11/30/2022]
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78
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Solid phase extraction as a cleanup step before microextraction of diclofenac and mefenamic acid using nanostructured solvent. Talanta 2013; 105:173-8. [DOI: 10.1016/j.talanta.2012.11.035] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2012] [Revised: 11/14/2012] [Accepted: 11/15/2012] [Indexed: 11/18/2022]
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79
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Recent advances in nanomaterials utilized in fiber coatings for solid-phase microextraction. Trends Analyt Chem 2013. [DOI: 10.1016/j.trac.2012.09.013] [Citation(s) in RCA: 110] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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80
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Sarafraz-Yazdi A, Fatehyan E, Amiri A. Determination of Mercury in Real Water Samples Using in situ Derivatization Followed by Sol-Gel-Solid-Phase Microextraction with Gas Chromatography-Flame Ionization Detection. J Chromatogr Sci 2012; 52:81-7. [DOI: 10.1093/chromsci/bms208] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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81
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Zielińska K, van Leeuwen HP, Thibault S, Town RM. Speciation analysis of aqueous nanoparticulate diclofenac complexes by solid-phase microextraction. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:14672-14680. [PMID: 22989313 DOI: 10.1021/la303143w] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The dynamic sorption of an organic compound by nanoparticles (NPs) is analyzed by solid-phase microextraction (SPME) for the example case of the pharmaceutical diclofenac in dispersions of impermeable (silica, SiO(2)) and permeable (bovine serum albumin, BSA) NPs. It is shown that only the protonated neutral form of diclofenac is accumulated in the solid phase, and hence this species governs the eventual partition equilibrium. On the other hand, the rate of the solid/water partition equilibration is enhanced in the presence of the sorbing nanoparticles of SiO(2) and BSA. This feature demonstrates that the NPs themselves do not enter the solid phase to any appreciable extent. The enhanced rate of attainment of equilibrium is due to a shuttle-type of contribution from the NP-species to the diffusive supply of diclofenac to the water/solid interface. For both types of nanoparticulate complexes, the rate constant for desorption (k(des)) of bound diclofenac was derived from the measured thermodynamic affinity constant and a diffusion-limited rate of adsorption. The computed k(des) values were found to be sufficiently high to render the NP-bound species labile on the effective time scale of SPME. In agreement with theoretical prediction, the experimental results are quantitatively described by fully labile behavior of the diclofenac/nanoparticle system and an ensuing accumulation rate controlled by the coupled diffusion of neutral, deprotonated, and NP-bound diclofenac species.
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Affiliation(s)
- Katarzyna Zielińska
- Laboratory of Physical Chemistry and Colloid Science, Wageningen University, Dreijenplein 6, 6703 HB Wageningen, The Netherlands
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82
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Panahi HA, Feizbakhsh A, Khaledi S, Moniri E. Fabrication of new drug imprinting polymer beads for selective extraction of naproxen in human urine and pharmaceutical samples. Int J Pharm 2012; 441:776-80. [PMID: 23064129 DOI: 10.1016/j.ijpharm.2012.10.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2012] [Revised: 09/30/2012] [Accepted: 10/01/2012] [Indexed: 11/17/2022]
Abstract
A drug imprinting polymer based on suspension polymerization was prepared with N,N-dimethylacrylamide and 1-(N,N-bis-carboxymethyl) amino-3-allylglycerol as functional monomers, N,N methylene diacrylamid as the cross-linker, naproxen as the template and 2,2'-azobis (2-methylbutyronitrile) as the initiator. The drug imprinted polymer was characterized by Fourier transform infrared spectroscopy, elemental analysis, thermogravimetric analysis and transmission electron microscopy. The imprinted polymer of agglomerated micro-particles with multi-pores was used for solid phase extraction. The drug imprinted polymer sorbent was selective for naproxen. The profile of the naproxen uptake by the sorbent reflects good accessibility of the active sites in the imprinted polymer sorbent. In addition, the equilibrium adsorption data of naproxen by imprinted polymer were analyzed by Langmuir isotherm models. The developed method was utilized for determination of naproxen in pharmaceutical and human urine samples by high performance liquid chromatography with satisfactory results.
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83
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Herrera-Herrera AV, González-Curbelo MÁ, Hernández-Borges J, Rodríguez-Delgado MÁ. Carbon nanotubes applications in separation science: A review. Anal Chim Acta 2012; 734:1-30. [DOI: 10.1016/j.aca.2012.04.035] [Citation(s) in RCA: 265] [Impact Index Per Article: 22.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2012] [Revised: 04/23/2012] [Accepted: 04/24/2012] [Indexed: 01/08/2023]
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