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Zhu W, Yang R, Zhao N, Yin G, Liu J. Determination of phenolic compounds in water using a multivariate statistical analysis method combined with three-dimensional fluorescence spectroscopy. RSC Adv 2024; 14:2235-2242. [PMID: 38213960 PMCID: PMC10777273 DOI: 10.1039/d3ra06917f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 12/05/2023] [Indexed: 01/13/2024] Open
Abstract
Phenolic compounds are toxic chemical pollutants present in water. Three-dimensional fluorescence spectroscopy analysis is an effective and rapid method for real-time phenol monitoring in aquatic environments. However, similar chemical structures of phenols result in highly overlapping three-dimensional fluorescence spectra. Therefore, it is extremely difficult to analyze and quantify the concentration of components in a mixture system that includes two or more phenolic compounds. In this article, we study the mixed phenol system containing phenol, o-cresol, p-cresol, m-cresol, catechol, and resorcinol combined with excitation-emission matrix (EEM) fluorescence data. A multivariate statistical method called best linear unbiased prediction (BLUP) is proposed to analyze the spectra with the aim to achieve quantitative results and a trilinear decomposition algorithm called parallel factor analysis (PARAFAC) was used for comparison. Two experiments with different calibration samples were set to validate the effectiveness of BLUP through recovery, ARecovery (Average Recovery), AREP (Average Relative Error of Prediction), and RMSE (Root Mean Square Error). Overall, the average recovery of each component in experiment 1 and experiment 2 ranged from 95.91% to 111.62% and 82.91% to 129.02%, respectively. Based on the results of the experiments, the concentration of phenolic compounds in water can be quantitatively determined by combining three-dimensional fluorescence spectroscopy with the BLUP method.
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Affiliation(s)
- Wei Zhu
- University of Science and Technology of China Hefei 230026 China
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences Hefei 230031 China
| | - Ruifang Yang
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences Hefei 230031 China
| | - Nanjing Zhao
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences Hefei 230031 China
| | - Gaofang Yin
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences Hefei 230031 China
| | - Jianguo Liu
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences Hefei 230031 China
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2
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Li G, Row KH. Single-drop microextraction technique for the determination of antibiotics in environmental water. J Sep Sci 2021; 45:883-895. [PMID: 34919334 DOI: 10.1002/jssc.202100682] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 12/03/2021] [Accepted: 12/05/2021] [Indexed: 12/12/2022]
Abstract
Growing concerns related to antibiotic residues in environmental water have encouraged the development of rapid, sensitive, and accurate analytical methods. Single-drop microextraction has been recognized as an efficient approach for the isolation and preconcentration of several analytes from a complex sample matrix. Thus, single-drop microextraction techniques are cost-effective and less harmful to the environment, subscribing to green analytical chemistry principles. Herein, an overview and the current advances in single-drop microextraction for the determination of antibiotics in environmental water are presented were included. In particular, two main approaches used to perform single-drop microextraction (direct immersion-single-drop microextraction and headspace-single-drop microextraction) are reviewed. Furthermore, the impressive analytical features and future perspectives of single-drop microextraction are discussed in this review. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Guizhen Li
- School of Chemistry and Chemical Engineering, Linyi University, Linyi, Shandong, 276005, P. R. China
| | - Kyung Ho Row
- Department of Chemistry and Chemical Engineering, Inha University, Incheon, 402751, Korea
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3
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Zhang J, Dang X, Dai J, Hu Y, Chen H. Simultaneous detection of eight phenols in food contact materials after electrochemical assistance solid-phase microextraction based on amino functionalized carbon nanotube/polypyrrole composite. Anal Chim Acta 2021; 1183:338981. [PMID: 34627510 DOI: 10.1016/j.aca.2021.338981] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 08/18/2021] [Accepted: 08/19/2021] [Indexed: 01/10/2023]
Abstract
An electrochemical assistance solid-phase microextraction (EA-SPME) was developed based on amino functionalized multi-walled carbon nanotube/polypyrrole (MWCNTs-NH2/PPy) composite coating. It was applied for the extraction of eight phenols in food contact material, including 2-chlorophenol, o-cresol, m-cresol, 2,4-dichlorophenol, 4-tert-butylphenol, 4-chlorophenol, 4-tertoctylphenol and alpha-naphthol. MWCNTs-NH2/PPy coating was characterized by scanning electron microscopy, transmission electron microscope, X-ray energy spectrometer, X-ray diffraction, Fourier transform infrared and thermogravimetric analysis. The adsorption mechanism of phenols on the composite coatings was investigated. The coating modified steel-wire as an extraction fiber has good electroconductibility, reproducibility and long service life. A determination method for the eight phenols was established by EA-SPME coupled with gas chromatography-flame ionization detection. Under the optimal experimental conditions (extraction temperature: 40 °C; extraction time: 30 min; stirring rate: 600 rpm; NaCl concentration: 0.15 g mL-1; desorption temperature: 250 °C and desorption time: 4 min), the detection linear range was 0.005-50 μg L-1 (R2>0.99), and the detection limit was 0.001-0.1 μg L-1 (S/N = 3). For the quintuple analysis of 50 μg L-1 phenols, the single fiber RSDs were 2.2-12.4%, and the fiber-to-fiber RSDs were 1.9-10.5%. The method was used to detect the migration quantity of the eight phenols from five canned packaging materials, which showed satisfactory recovery 87.3-118.9%.
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Affiliation(s)
- Jiayang Zhang
- Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, PR China
| | - Xueping Dang
- Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, PR China.
| | - Jiahuan Dai
- Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, PR China
| | - Yuling Hu
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, PR China.
| | - Huaixia Chen
- Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, PR China
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4
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Yi Z, Kun-Lin Y. Quantitative detection of phenol in wastewater using square wave voltammetry with pre-concentration. Anal Chim Acta 2021; 1178:338788. [PMID: 34482861 DOI: 10.1016/j.aca.2021.338788] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 06/12/2021] [Accepted: 06/20/2021] [Indexed: 10/21/2022]
Abstract
Phenol is a common pollutant found in wastewater, and its allowable discharge limit is 0.5 parts-per-million (ppm). Therefore, it is critical to monitor phenol in the sub-ppm range with high sensitivity and a low limit of detection. Herein, we report a quantitative method for detecting phenol in industrial wastewater through square wave voltammetry (SWV), in which phenol is oxidized to phenoxyl radicals and then became catechol and hydroquinone for detection. By using this method, phenol in the sub-ppm range can be detected reliably over a wide pH range. The sensitivity can be further improved by using a pre-concentration step for phenol before scanning. The method has a limit of detection of 0.1 ppb for phenol. Finally, three graphite electrodes were applied as working, counter and reference electrodes, respectively, in a millifluidic device for continuous detection of phenol in industrial wastewater flowing at 300 μL/min. Because of its simplicity, the sensor can be mass-produced and deployed on a large scale to monitor phenol in industrial wastewater.
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Affiliation(s)
- Zhang Yi
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117576, Singapore
| | - Yang Kun-Lin
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117576, Singapore.
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Liu W, Xie M, Hao X, Xu Q, Jiang X, Liu T, Wang M. Rapid synergistic cloud point extraction for simultaneous determination of five polar phenols in environmental water samples via high performance liquid chromatography with fluorescence detection. Microchem J 2021. [DOI: 10.1016/j.microc.2021.105963] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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6
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Al-Otaibi JS, Mary YS, Mary YS, Kaya S, Serdaroglu G. DFT computational study of trihalogenated aniline derivative's adsorption onto graphene/fullerene/fullerene-like nanocages, X 12Y 12 (X = Al, B, and Y = N, P). J Biomol Struct Dyn 2021; 40:8630-8643. [PMID: 33876711 DOI: 10.1080/07391102.2021.1914172] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Adsorption of 2,4,6-tribromoaniline (BA), 2,4,6-trifluoroaniline (FA) and 2,4,6-trichloroaniline (CA) onto the surface of coronene/fullerene/fullerene-like nanocages was investigated by theoretical calculations. Due to the adsorption of BA/FA/CA, there are significant changes in chemical descriptors and nonlinear optical properties. Energy gap values of all nanoclusters are lowered, giving an increase in conductivity of complexes except for fullerene. All complex's ultraviolet visible wavenumber is blue-shifted and especially for fullerene complex, the values are very high. The enhancement of Raman intensities shows that it is possible to design a nanocage sensor for detecting these compounds by surface-enhanced Raman scattering (SERS).Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Jamelah S Al-Otaibi
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Saudi Arabia
| | | | | | - Savaş Kaya
- Health Services Vocational School, Department of Pharmacy, Sivas Cumhuriyet University, Sivas, Turkey
| | - Goncagül Serdaroglu
- Faculty of Education, Math. and Sci. Edu, Sivas Cumhuriyet University, Sivas, Turkey
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Zhu W, Zhao NJ, Yang RF, Chen YN, Chen XW, Yin GF, Liu JG, Liu WQ. Simultaneous measurement of phenols by three-way fluorescence spectroscopy: A comparison of N-PLS/RBL, U-PLS/RBL and PARAFAC. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 239:118511. [PMID: 32480275 DOI: 10.1016/j.saa.2020.118511] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Revised: 05/15/2020] [Accepted: 05/18/2020] [Indexed: 06/11/2023]
Abstract
Phenol, o-cresol, p-cresol, catechol and resorcinol are five phenolic compounds with extremely similar structure. Their fluorescence spectra are hard to be analyzed because of the serious spectral overlaps between any two of the five phenolic components in the mixture system. In this experiment, multi-dimensional partial least-squares (N-PLS), unfolded partial least-squares (U-PLS) with residual bilinearization (RBL) and parallel factor analysis (PARAFAC) are employed to analyze the three-way fluorescence spectra aiming to achieve quantitative results. Meanwhile, a contrast of these three methods is given. The experiment results show that N-PLS/RBL and U-PLS/RBL algorithms are superior to PARARFAC in terms of analysis of highly overlapping three-way fluorescence spectra for concentration determination.
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Affiliation(s)
- Wei Zhu
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, 230031, China; University of Science and Technology of China, Hefei, 230026, China
| | - Nan Jing Zhao
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, 230031, China.
| | - Rui Fang Yang
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, 230031, China.
| | - Yu Nan Chen
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, 230031, China
| | - Xiao Wei Chen
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, 230031, China
| | - Gao Fang Yin
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, 230031, China
| | - Jian Guo Liu
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, 230031, China
| | - Wen Qing Liu
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, 230031, China
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8
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Matin AA, Biparva P, Gheshlaghi M, Khosrowshahi EM, Farhadi K. Monolithic mixed matrix membrane based on polyethersulfone/functionalized MWCNTs nanocomposite as an SPME fiber: Application to extract chlorophenols from human urine and serum samples followed by GC-ECD. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1150:122190. [PMID: 32474051 DOI: 10.1016/j.jchromb.2020.122190] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 05/20/2020] [Accepted: 05/22/2020] [Indexed: 12/13/2022]
Abstract
A monolithic mixed matrix membrane of functionalized multi-walled carbon nanotubes-polyethersulfone (MWCNT/PES) was prepared in a non-covalent approach and employed as an SPME fiber for extraction of chlorophenols (CPs). The proposed extraction method was followed by GC-ECD to determine the analytes. The influencing factors on the extraction efficiency such as pH, ionic strength, extraction and desorption temperature and time were studied. Under the selected conditions, calibration curves were linear over a wide concentration range from 0.005 to 1000 µgL-1 (r2 > 0.9961) for target analytes. In addition, the limits of detection (LOD) of the method were obtained in the range of 0.3-30 ng L-1. The relative standard deviation (RSD) for single fiber repeatability (n = 5) is from 1.4 to 4.6%. Fiber-to-fiber repeatability (n = 3) was also evaluated and the RSD is in the range of 1.3-6.3%. Applications of proposed fiber for extraction of CPs from the headspace of urine and serum samples were successfully investigated. The relative recovery in the biological samples spiked with different levels of CPs were in the range of 91.6-102.5%.
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Affiliation(s)
- Amir Abbas Matin
- Department of Chemistry, Faculty of Basic Sciences, Azarbaijan Shahid Madani University, 53714-161 Tabriz, Iran.
| | - Pourya Biparva
- Department of Basic Sciences, Sari Agricultural Sciences and Natural Resources University, Sari, Iran
| | - Mohammad Gheshlaghi
- Research Department of Chromatography, Iranian Academic Center for Education, Culture and Research (ACECR), Urmia, Iran
| | | | - Khalil Farhadi
- Department of Analytical Chemistry, Faculty of Chemistry, Urmia University, Urmia, Iran
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9
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Determination of polybrominated diphenyl ethers and metabolites by single-drop microextraction and GC–MS/MS. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-2642-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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10
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Javadi T, Farajmand B, Yaftian MR, Zamani A. Homogenizer assisted dispersive liquid-phase microextraction for the extraction-enrichment of phenols from aqueous samples and determination by gas chromatography. J Chromatogr A 2020; 1614:460733. [DOI: 10.1016/j.chroma.2019.460733] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 11/23/2019] [Accepted: 11/25/2019] [Indexed: 12/15/2022]
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11
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Ali I, Suhail M, Alothman ZA, Abdulrahman A, Aboul-Enein HY. Drug analyses in human plasma by chromatography. HANDBOOK OF ANALYTICAL SEPARATIONS 2020. [DOI: 10.1016/b978-0-444-64066-6.00002-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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12
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Pastor-Belda M, Sánchez-López MJ, Campillo N, Viñas P, Hernández-Córdoba M. Determination of nitrophenols in environmental samples using stir bar sorptive extraction coupled to thermal desorption gas chromatography-mass spectrometry. Talanta 2018; 189:543-549. [DOI: 10.1016/j.talanta.2018.07.043] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 07/09/2018] [Accepted: 07/11/2018] [Indexed: 10/28/2022]
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13
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Hazrina HZ, Noorashikin MS, Beh SY, Loh SH, Zain NNM. Formulation of chelating agent with surfactant in cloud point extraction of methylphenol in water. ROYAL SOCIETY OPEN SCIENCE 2018; 5:180070. [PMID: 30109066 PMCID: PMC6083667 DOI: 10.1098/rsos.180070] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 05/25/2018] [Indexed: 05/24/2023]
Abstract
Cloud point extraction (CPE) is a separation and preconcentration of non-ionic surfactant from one liquid phase to another. In this study, Sylgard 309 and three different types of additives for CPE, namely CPE-Sylgard, CPE-Sylgard-BMIMBr and CPE-Sylgard-GLDA, are investigated to extract methylphenol from water samples. The methylphenols are well separated by reversed-phase high-performance liquid chromatography (HPLC) with isocratic elution of acetonitrile : water; 60 : 40 (v/v) and detection at 260 nm. The optimized parameters for the effect of salt, surfactant, temperature, time of extraction, pH, interference study and the performance of different additives on methylphenol extraction are investigated. CPE-Sylgard-GLDA is chosen because it gives us a high peak and good peak area compared with CPE-Sylgard and CPE-Sylgard-BMIMBr. The recovery extractions of CPE-Sylgard-GLDA are obtained in the range of 80-99% as the percentage of relative standard deviation (RSD) is less than 10. The LOD and LOQ are 0.05 ppm and 0.18 ppm, respectively. The method developed for CPE-Sylgard-GLDA coupled with HPLC is feasible for the determination of methylphenol because it is simple, effective, cheap, and produces a high percentage of recovery.
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Affiliation(s)
- H. Z. Hazrina
- School of Marine Science and Environment, Universiti Malaysia Terengganu, 21030 Kuala Terengganu, Terengganu, Malaysia
| | - M. S. Noorashikin
- Chemical Engineering Programme, Research Centre For Sustainable Process Technology (CESPRO), Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia
| | - S. Y. Beh
- Chemical Engineering Programme, Research Centre For Sustainable Process Technology (CESPRO), Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia
| | - S. H. Loh
- School of Marine Science and Environment, Universiti Malaysia Terengganu, 21030 Kuala Terengganu, Terengganu, Malaysia
| | - N. N. M. Zain
- Integrative Medicine Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Bertam, 13200 Kepala Batas, Pulau Pinang, Malaysia
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14
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Present state and applications of single drop microextraction for the determination of harmful organic compounds and pollutants. NOVA BIOTECHNOLOGICA ET CHIMICA 2018. [DOI: 10.2478/nbec-2018-0001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Abstract
Single drop microextraction (SDME) nowadays earns an increasing attention by scientists due to its simplicity, low cost and the need for only common laboratory equipment. This microextraction technique combines sample cleanup and pre-concentration of analytes in one step. Furthermore, a significant reduction in the amount of organic solvents needed comparing to standard LLE techniques places SDME into the position of environmental friendly extraction techniques. SDME is a straightforward technique in which a micro-drop of solvent is suspended from the tip of a conventional micro-syringe and then it is in a direct contact with a sample solution in which it is immiscible or it could be suspended in the headspace above the sample. The paper overviews developments of the state-of-the-art SDME techniques for the extraction of harmful organic compound and pollutants from environmental, food and biological matrices. Key extraction parameters essential for SDME performance were described and discussed.
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16
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Xue H, Yan Y, Hou Y, Li G, Hao C. Novel carbon quantum dots for fluorescent detection of phenol and insights into the mechanism. NEW J CHEM 2018. [DOI: 10.1039/c8nj01611a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Phenol is considered as one of the most important pollutants in the water environment, and thus its detection plays a cardinal role in environmental assessment and treatment.
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Affiliation(s)
- Hong Xue
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- China
| | - Yang Yan
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- China
| | - Yong Hou
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- China
| | - Guanglan Li
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- China
| | - Ce Hao
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- China
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17
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Wejnerowska G. Development of a Single-Drop Microextraction with Derivatization Procedure for Analysis of Volatile Fatty Acids in Water Samples. Chromatographia 2017; 80:1115-1120. [PMID: 28725084 PMCID: PMC5486468 DOI: 10.1007/s10337-017-3316-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 04/17/2017] [Accepted: 04/19/2017] [Indexed: 01/19/2023]
Abstract
A single-drop microextraction (SDME) was developed for the analysis of volatile fatty acids (VFAs) (C2–C7) in water by gas chromatography (GC) with flame ionization detection. The significant parameters affecting the SDME performance such as selection of microextraction solvent, extraction time, stirring rate, sample pH and temperature, and ionic strength were studied and optimized. To lower limits of detection, derivatization of VFAs by N-methyl-N-(tert-butyldimethylsilyl)trifluoroacetamide (MTBSTFA) was performed. The method developed requires very short time of extraction and derivatization (13 min) and it is characterized by a good precision (max RSD = 11.4%), linearity and relatively low limits of detection (from 8.3 mg L−1 for acetic acid to 0.008 mg L−1 for heptanoic acid). The results of the SDME in combination with GC show promising potential for the analysis of VFAs in water samples.
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Affiliation(s)
- Grażyna Wejnerowska
- Department of Food Analytics and Environmental Protection, Faculty of Chemical Technology and Engineering, University of Science and Technology in Bydgoszcz, Seminaryjna 3 St., 85-326 Bydgoszcz, Poland
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18
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Amiri A, Zonoz FM, Targhoo A, Saadati-Moshtaghin HR. Enrichment of phenolic compounds from water samples by using magnetic Fe3O4 nanoparticles coated with a Keggin type heteropoly acid of type H6[BFe(OH2)W11O39] as a sorbent. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2103-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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19
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Chammui Y. Rapid Analysis of some Endocrine Disruptor Chemicals Leaching from Baby Milk Feeding Bottles Using SPME and SDME Techniques. FOOD ANAL METHOD 2017. [DOI: 10.1007/s12161-017-0825-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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20
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Haruna K, Saleh TA, Al Thagfi J, Al-Saadi AA. Structural properties, vibrational spectra and surface-enhanced Raman scattering of 2,4,6-trichloro- and tribromoanilines: A comparative study. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.05.021] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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21
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Norseyrihan MS, Noorashikin MS, Adibah MSN, Yusoff F. Cloud point extraction of methylphenol in water samples with low viscosity of non-ionic surfactant Sylgard 309 coupled with high-performance liquid chromatography. SEP SCI TECHNOL 2016. [DOI: 10.1080/01496395.2016.1207666] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- M. S. Norseyrihan
- School of Marine Science and Environment, Universiti Malaysia Terengganu, Terengganu, Malaysia
| | - M. S. Noorashikin
- School of Marine Science and Environment, Universiti Malaysia Terengganu, Terengganu, Malaysia
| | - M. S. N. Adibah
- School of Marine Science and Environment, Universiti Malaysia Terengganu, Terengganu, Malaysia
| | - Farhanini Yusoff
- School of Marine Science and Environment, Universiti Malaysia Terengganu, Terengganu, Malaysia
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Ziyaadini M, Zahedi MM, Khosravinia S. Ultrasound-assisted extraction combined with reverse phase-dispersive liquid-liquid micro extraction as a new approach for preconcentration and spectrophotometric determination of total phenol in marine sediments of Chabahar Bay. MARINE POLLUTION BULLETIN 2016; 109:104-109. [PMID: 27293075 DOI: 10.1016/j.marpolbul.2016.06.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2016] [Revised: 06/01/2016] [Accepted: 06/02/2016] [Indexed: 06/06/2023]
Abstract
In this study, Reverse phase dispersive liquid-liquid micro extraction (RP-DLLME) technique have been successfully developed to preconcentrate trace amount of phenol from sediment samples as a prior step to its derivatization with 4-aminoantipyrine and enhanced determination by UV-Vis spectrophotometry after primary ultrasonic extraction. In this procedure, 50μL 0.7M NaOH solution was chosen as extraction solvent and other factors including pH, extraction time, concentration of 4-aminoantipyrine, type and volume of dispersive solvents were optimized. Under selected conditions, the limit of detection, the linearity range, relative standard deviation and enrichment factor of method were obtained 15μg·kg(-1), 50-1800μg·kg(-1), 4.8% (n=10) and 33, respectively. Finally, using the high sensitivity, low organic solvent consumption and waste generation method, total phenol content in marine sediments from several locations in Chabahar Bay (southeast Iran) was estimated at 55.8-73.2μg·kg(-1).
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Affiliation(s)
- Morteza Ziyaadini
- Department of Marine Chemistry, Faculty of Marine Sciences, Chabahar Maritime University, Chabahar, Iran
| | - Mir Mahdi Zahedi
- Department of Marine Chemistry, Faculty of Marine Sciences, Chabahar Maritime University, Chabahar, Iran
| | - Saeid Khosravinia
- Department of Marine Chemistry, Faculty of Marine Sciences, Chabahar Maritime University, Chabahar, Iran
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23
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Dispersive liquid-liquid microextraction for the determination of nitrophenols in soils by microvial insert large volume injection-gas chromatography–mass spectrometry. J Chromatogr A 2016; 1456:27-33. [DOI: 10.1016/j.chroma.2016.05.098] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Revised: 05/26/2016] [Accepted: 05/29/2016] [Indexed: 11/15/2022]
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24
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Boczkaj G, Makoś P, Przyjazny A. Application of dispersive liquid-liquid microextraction and gas chromatography with mass spectrometry for the determination of oxygenated volatile organic compounds in effluents from the production of petroleum bitumen. J Sep Sci 2016; 39:2604-15. [DOI: 10.1002/jssc.201501355] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Revised: 04/19/2016] [Accepted: 04/24/2016] [Indexed: 01/01/2023]
Affiliation(s)
- Grzegorz Boczkaj
- Chemical Faculty, Department of Chemical and Process Engineering; Gdansk University of Technology; Poland
| | - Patrycja Makoś
- Chemical Faculty, Department of Chemical and Process Engineering; Gdansk University of Technology; Poland
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25
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Saraji M, Ghani M. Hollow fiber liquid–liquid–liquid microextraction followed by solid-phase microextraction and in situ derivatization for the determination of chlorophenols by gas chromatography-electron capture detection. J Chromatogr A 2015; 1418:45-53. [DOI: 10.1016/j.chroma.2015.09.062] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 09/17/2015] [Accepted: 09/18/2015] [Indexed: 12/25/2022]
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26
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Gruzdev IV, Zenkevich IG, Kondratenok BM. Derivatization in gas chromatographic determination of phenol and aniline traces in aqueous media. RUSSIAN CHEMICAL REVIEWS 2015. [DOI: 10.1070/rcr4553] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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27
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Caldas SS, Rombaldi C, Arias JLDO, Marube LC, Primel EG. Multi-residue method for determination of 58 pesticides, pharmaceuticals and personal care products in water using solvent demulsification dispersive liquid-liquid microextraction combined with liquid chromatography-tandem mass spectrometry. Talanta 2015; 146:676-88. [PMID: 26695317 DOI: 10.1016/j.talanta.2015.06.047] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 06/11/2015] [Accepted: 06/17/2015] [Indexed: 10/23/2022]
Abstract
A rapid and efficient sample pretreatment using solvent-based de-emulsification dispersive liquid-liquid microextraction (SD-DLLME) coupled with liquid chromatography-tandem mass spectrometry (LC-MS/MS) was studied for the extraction of 58 pharmaceuticals and personal care products (PPCPs) and pesticides from water samples. Type and volume of extraction and disperser solvents, pH, salt addition, amount of salt and type of demulsification solvent were evaluated. Limits of quantification (LOQ) in the range from 0.0125 to 1.25 µg L(-1) were reached, and linearity was in the range from the LOQ of each compound to 25 μg L(-1). Recoveries ranged from 60% to 120% for 84% of the compounds, with relative standard deviations lower than 29%. The proposed method demonstrated, for the first time, that sample preparation by SD-DLLME with determination by LC-MS/MS can be successfully used for the simultaneous extraction of 32 pesticides and 26 PPCPs from water samples. The entire procedure, including the extraction of 58 organic compounds from the aqueous sample solution and the breaking up of the emulsion after extraction with water, rather than with an organic solvent, was environmentally friendly. In addition, this technique was less expensive and faster than traditional techniques. Finally, the analytical method under study was successfully applied to the analysis of all 58 pesticides and PPCPs in surface water samples.
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Affiliation(s)
- Sergiane Souza Caldas
- Escola de Química e Alimentos, Universidade Federal do Rio Grande-FURG, 96203-900 Rio Grande, RS, Brazil
| | - Caroline Rombaldi
- Escola de Química e Alimentos, Universidade Federal do Rio Grande-FURG, 96203-900 Rio Grande, RS, Brazil
| | | | - Liziane Cardoso Marube
- Escola de Química e Alimentos, Universidade Federal do Rio Grande-FURG, 96203-900 Rio Grande, RS, Brazil
| | - Ednei Gilberto Primel
- Escola de Química e Alimentos, Universidade Federal do Rio Grande-FURG, 96203-900 Rio Grande, RS, Brazil.
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28
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Sensitive monitoring of trace nitrophenols in water samples using multiple monolithic fiber solid phase microextraction and liquid chromatographic analysis. Talanta 2015; 134:89-97. [DOI: 10.1016/j.talanta.2014.10.059] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2014] [Accepted: 10/28/2014] [Indexed: 12/21/2022]
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29
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Identification, quantification and distribution of substituted phenols in the dissolved and suspended phases of water samples by gas chromatography tandem mass spectrometry: Derivatization, mass fragmentation and acquisition studies. Microchem J 2015. [DOI: 10.1016/j.microc.2014.07.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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30
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A novel dispersive micro solid phase extraction using zein nanoparticles as the sorbent combined with headspace solid phase micro-extraction to determine chlorophenols in water and honey samples by GC–ECD. Talanta 2014; 128:493-9. [DOI: 10.1016/j.talanta.2014.06.002] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2014] [Revised: 06/04/2014] [Accepted: 06/04/2014] [Indexed: 11/18/2022]
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31
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Graphene quantum dots and the resonance light scattering technique for trace analysis of phenol in different water samples. Talanta 2014; 125:341-6. [DOI: 10.1016/j.talanta.2014.03.007] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Revised: 02/26/2014] [Accepted: 03/10/2014] [Indexed: 11/18/2022]
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32
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Shi Z, Jiang H, Hu J, Li Z, Zhang H. DISPERSIVE LIQUID-LIQUID MICROEXTRACTION AND HIGH-PERFORMANCE LIQUID CHROMATOGRAPHIC DETERMINATION OF ANTHRAQUINONE DERIVATIVES IN HUMAN URINE AFTER ORAL ADMINISTRATION OF SAN-HUANG TABLETS. J LIQ CHROMATOGR R T 2014. [DOI: 10.1080/10826076.2013.825861] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Zhihong Shi
- a College of Chemistry and Environmental Science, Key Laboratory of Analytical Science and Technology of Hebei Province , Hebei University , Baoding , China
| | - Huixian Jiang
- a College of Chemistry and Environmental Science, Key Laboratory of Analytical Science and Technology of Hebei Province , Hebei University , Baoding , China
| | - Junda Hu
- a College of Chemistry and Environmental Science, Key Laboratory of Analytical Science and Technology of Hebei Province , Hebei University , Baoding , China
| | - Zhimin Li
- a College of Chemistry and Environmental Science, Key Laboratory of Analytical Science and Technology of Hebei Province , Hebei University , Baoding , China
| | - Hongyi Zhang
- a College of Chemistry and Environmental Science, Key Laboratory of Analytical Science and Technology of Hebei Province , Hebei University , Baoding , China
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33
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Farajzadeh MA, Nouri N, Khorram P. Derivatization and microextraction methods for determination of organic compounds by gas chromatography. Trends Analyt Chem 2014. [DOI: 10.1016/j.trac.2013.11.006] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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34
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Kocúrová L, Balogh IS, Andruch V. A glance at achievements in the coupling of headspace and direct immersion single-drop microextraction with chromatographic techniques. J Sep Sci 2013; 36:3758-68. [DOI: 10.1002/jssc.201300575] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2013] [Revised: 09/09/2013] [Accepted: 09/09/2013] [Indexed: 01/05/2023]
Affiliation(s)
- Lívia Kocúrová
- Department of Analytical Chemistry; Pavol Jozef Šafárik University in Košice; Slovak Republic
| | - Ioseph S. Balogh
- Department of Chemistry; College of Nyíregyháza; Nyíregyháza Hungary
| | - Vasil Andruch
- Department of Analytical Chemistry; Pavol Jozef Šafárik University in Košice; Slovak Republic
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35
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A rapid and selective method for simultaneous determination of six toxic phenolic compounds in mainstream cigarette smoke using single-drop microextraction followed by liquid chromatography–tandem mass spectrometry. Anal Bioanal Chem 2013; 405:9265-72. [DOI: 10.1007/s00216-013-7351-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Revised: 08/27/2013] [Accepted: 09/05/2013] [Indexed: 10/26/2022]
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36
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Faludi T, Andrási N, Vasanits-Zsigrai A, Záray G, Molnár-Perl I. Systematic derivatization, mass fragmentation and acquisition studies in the analysis of chlorophenols, as their silyl derivatives by gas chromatography–mass spectrometry. J Chromatogr A 2013; 1302:133-42. [DOI: 10.1016/j.chroma.2013.06.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Revised: 06/04/2013] [Accepted: 06/06/2013] [Indexed: 12/21/2022]
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37
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Lin H, Wang J, Zeng L, Li G, Sha Y, Wu D, Liu B. Development of solvent micro-extraction combined with derivatization. J Chromatogr A 2013; 1296:235-42. [DOI: 10.1016/j.chroma.2013.04.039] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Revised: 04/15/2013] [Accepted: 04/15/2013] [Indexed: 11/29/2022]
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38
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Ferreira AMC, Laespada MEF, Pavón JLP, Cordero BM. In situ aqueous derivatization as sample preparation technique for gas chromatographic determinations. J Chromatogr A 2013; 1296:70-83. [PMID: 23726081 DOI: 10.1016/j.chroma.2013.04.084] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2013] [Revised: 04/25/2013] [Accepted: 04/29/2013] [Indexed: 10/26/2022]
Abstract
The use of derivatization reactions is a common practice in analytical laboratories. Although in many cases it is tedious and time-consuming, it does offer a good alternative for the determination of analytes not compatible to gas chromatography. Many of the reactions reported in the literature occur in organic medium. However, in situ aqueous derivatization reactions, which can be performed directly in aqueous medium, offer important advantages over those mentioned above, such as no need of a previous extraction step and easy automation. Here we review the most recent developments and applications of in situ aqueous derivatization. The discussion focuses on the derivatization reactions used for the determination of alcohols and phenols, carboxylic acids, aldehydes and ketones, nitrogen-containing compounds and thiols in different aqueous matrices, such as environmental, biological and food samples. Several reactions are described for each functional group (acylation, alkylation, esterification, among others) and, in some cases, the same reagents can be used for several functional groups, such that there is an unavoidable overlap between sections. Finally, attention is also focused on the techniques used for the introduction of the derivatives formed in the aqueous medium into the chromatographic system. The implementation of in situ aqueous derivatization coupled to preconcentration techniques has permitted the enhancement of recoveries and improvements in the separation, selectivity and sensitivity of the analytical methods.
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Affiliation(s)
- Ana María Casas Ferreira
- Departamento de Química Analítica, Nutrición y Bromatología, Facultad de Ciencias Químicas, Universidad de Salamanca, 37008 Salamanca, Spain
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39
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Li X, Xue A, Chen H, Li S. Low-density solvent-based dispersive liquid-liquid microextraction combined with single-drop microextraction for the fast determination of chlorophenols in environmental water samples by high performance liquid chromatography-ultraviolet detection. J Chromatogr A 2013; 1280:9-15. [PMID: 23375770 DOI: 10.1016/j.chroma.2013.01.023] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2012] [Revised: 01/04/2013] [Accepted: 01/07/2013] [Indexed: 11/26/2022]
Abstract
A new format of fast three-phase microextraction by combining low-density solvent-based dispersive liquid-liquid microextraction (DLLME) and single-drop microextraction (SDME) was for the first time developed for the determination of chlorophenols in environmental water samples. The extraction procedure includes a 2 min DLLME pre-extraction and a 10 min SDME back-extraction. A portion of low-density solvent (toluene) was used as organic phase and injected into the aqueous sample (donor phase) with methanol as disperser. The analytes were pre-extracted into the organic phase within 2 min. A thin layer of the organic phase formed on the top of the aqueous phase by a 2 min centrifugation. Then a drop of acceptor solution was introduced into the upper layer and SDME was carried out for the back-extraction. The stirring step typically involved in SDME and LLLME is avoided with the benefit of the high speed and efficiency of DLLME pre-extraction. After extraction, the acceptor drop was withdrawn and directly injected into a high performance liquid chromatography instrument with ultraviolet detection for analysis. Five chlorophenols, 4-chlorophenol, 2-chlorophenol, 2,4-dichlorophenol, 2,4,6-trichlorophenol, and pentachlorophenol, were selected as model compounds for developing and evaluating the method. Factors affecting extraction efficiency were studied, including the organic solvent, the disperser solvent, the composition of donor phase and acceptor phase, the volume of acceptor microdrop, and the extraction time. At optimal conditions, the method showed low detection limit (0.016-0.084 μg/L) for the five chlorophenols, good linearity (from 0.2-250 to 1.0-250 μg/L, depending on the analytes) and repeatability (RSD below 8.2, n=5). The simple, fast, and efficient feature of the proposed method was demonstrated by the analysis of chlorophenols in environmental water samples.
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Affiliation(s)
- Xiaoyi Li
- College of Science, Huazhong Agricultural University, Wuhan 430070, China
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40
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Guo X, Deng L, Wang J. Oligonucleotide-stabilized silver nanoclusters as fluorescent probes for sensitive detection of hydroquinone. RSC Adv 2013. [DOI: 10.1039/c2ra21615a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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41
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Saraji M, Mehrafza N, Bidgoli AAH, Jafari MT. Determination of desipramine in biological samples using liquid-liquid-liquid microextraction combined with in-syringe derivatization, gas chromatography, and nitrogen/phosphorus detection. J Sep Sci 2012; 35:2637-44. [DOI: 10.1002/jssc.201200334] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2012] [Revised: 05/21/2012] [Accepted: 05/29/2012] [Indexed: 11/11/2022]
Affiliation(s)
- Mohammad Saraji
- Department of Chemistry; Isfahan University of Technology; Isfahan Iran
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42
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Emulsification-based dispersive liquid microextraction and HPLC determination of carbazole-based explosives. Mikrochim Acta 2012. [DOI: 10.1007/s00604-012-0863-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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43
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Chung RJ, Leong MI, Huang SD. Determination of nitrophenols using ultrahigh pressure liquid chromatography and a new manual shaking-enhanced, ultrasound-assisted emulsification microextraction method based on solidification of a floating organic droplet. J Chromatogr A 2012; 1246:55-61. [DOI: 10.1016/j.chroma.2012.02.025] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2011] [Revised: 02/08/2012] [Accepted: 02/09/2012] [Indexed: 10/28/2022]
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44
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Hashemi P, Badiei A, Shamizadeh M, Ziarani GM, Ghiasvand AR. Preparation of a New Solid-Phase Microextraction Fiber by Coating Silylated Nanoporous Silica on a Copper Wire. J CHIN CHEM SOC-TAIP 2012. [DOI: 10.1002/jccs.201100429] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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45
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46
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Bonifas AP, McCreery RL. Solid State Spectroelectrochemistry of Redox Reactions in Polypyrrole/Oxide Molecular Heterojunctions. Anal Chem 2012; 84:2459-65. [DOI: 10.1021/ac2032047] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Andrew P. Bonifas
- Department of Materials Science
and Engineering, The Ohio State University, 2041 College Road, Columbus, Ohio 43210, United States
- National Institute for Nanotechnology, National Research Council Canada, Canada, T6G 2G2
| | - Richard L. McCreery
- National Institute for Nanotechnology, National Research Council Canada, Canada, T6G 2G2
- Department of Chemistry, University of Alberta, Canada, T6G 2R3
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47
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Qu J, Chen H, Lu C, Wang Z, Lin JM. On-line solid phase extraction of humic acid from environmental water and monitoring with flow-through chemiluminescence. Analyst 2012; 137:1824-30. [DOI: 10.1039/c2an16002a] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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48
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de Morais P, Stoichev T, Basto MCP, Vasconcelos MTS. Extraction and preconcentration techniques for chromatographic determination of chlorophenols in environmental and food samples. Talanta 2012; 89:1-11. [DOI: 10.1016/j.talanta.2011.12.044] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2011] [Revised: 12/13/2011] [Accepted: 12/15/2011] [Indexed: 12/22/2022]
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49
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Liu W, Cao W, Liu W, Du K, Gong P. Determination of phenol by flow-injection with chemiluminescence detection based on the hemin-catalysed luminol-hydrogen peroxide reaction. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 85:283-287. [PMID: 22036004 DOI: 10.1016/j.saa.2011.10.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2011] [Revised: 10/02/2011] [Accepted: 10/06/2011] [Indexed: 05/31/2023]
Abstract
This study established a novel flow injection (FI) methodology for the determination of phenol in aqueous samples based on luminol chemiluminescence (CL) detection. The method was based on the inhibition that phenol caused on the hemin-catalysed chemiluminescence reaction between luminol and hydrogen peroxide in alkaline solution. Optimum conditions and possible mechanisms have been investigated. The linear range was 2.0×10(-9) to 4.0×10(-7)gmL(-1) for phenol. The proposed method is sensitive with a detection limit of 4.0×10(-10)gmL(-1). The relative standard deviation for 11 measurements was 2.3% for 1.0×10(-7)gmL(-1) phenol. The method was applied for the determination of phenol in waste water samples. The results obtained compared well with those by an official method.
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Affiliation(s)
- Wenwen Liu
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
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50
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Xia Y, Zhi X, Wang X, Chen M, Cheng J. Ultrasound-enhanced surfactant-assisted dispersive liquid–liquid microextraction and high-performance liquid chromatography for determination of ketoconazole and econazole nitrate in human blood. Anal Bioanal Chem 2011; 402:1241-7. [DOI: 10.1007/s00216-011-5508-z] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2011] [Revised: 09/29/2011] [Accepted: 10/16/2011] [Indexed: 11/28/2022]
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