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Safwat N, Mahmoud AM, Abdel-Ghany MF, Ayad MF. Eco-friendly monitoring of triclosan as an emerging antimicrobial environmental contaminant utilizing electrochemical sensors modified with CNTs nanocomposite transducer layer. BMC Chem 2023; 17:170. [PMID: 38017490 PMCID: PMC10685535 DOI: 10.1186/s13065-023-01092-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 11/15/2023] [Indexed: 11/30/2023] Open
Abstract
Environmental appearance of antimicrobials due to frequent use of personal care products as recommended by WHO can cause serious flare-up of antimicrobial resistance. In this work, three eco-friendly microfabricated copper solid-state sensors were developed for measuring triclosan in water. Multi-walled carbon nanotubes were incorporated in sensor 2 and 3 as hydrophobic conductive inner layer. Meanwhile, β-cyclodextrin was incorporated in sensor 3 as an ionophore for selective binding of TCS in presence of interfering compounds. The obtained linear responses of sensors 1, 2 and 3 were (1 × 10- 8-1 × 10- 3 M), (1 × 10- 9-1 × 10- 3 M) and (1 × 10- 10- 1 × 10- 3 M), respectively. Limit of detection was 9.87 × 10- 9 M, 9.62 × 10- 10 M, and 9.94 × 10- 11 M, respectively. The miniaturized sensors were utilized for monitoring of triclosan in water samples.
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Affiliation(s)
- Nardine Safwat
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Abbassia, 11566, Cairo, Egypt
| | - Amr M Mahmoud
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr-El Aini Street, Cairo, 11562, Egypt.
| | - Maha F Abdel-Ghany
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Abbassia, 11566, Cairo, Egypt
| | - Miriam F Ayad
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Abbassia, 11566, Cairo, Egypt
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Sun C, Zhang T, Zhou Y, Liu ZF, Zhang Y, Bian Y, Feng XS. Triclosan and related compounds in the environment: Recent updates on sources, fates, distribution, analytical extraction, analysis, and removal techniques. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 870:161885. [PMID: 36731573 DOI: 10.1016/j.scitotenv.2023.161885] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 01/18/2023] [Accepted: 01/24/2023] [Indexed: 06/18/2023]
Abstract
Triclosan (TCS) has been widely used in daily life because of its broad-spectrum antibacterial activities. The residue of TCS and related compounds in the environment is one of the critical environmental safety problems, and the pandemic of COVID-19 aggravates the accumulation of TCS and related compounds in the environment. Therefore, detecting TCS and related compound residues in the environment is of great significance to human health and environmental safety. The distribution of TCS and related compounds are slightly different worldwide, and the removal methods also have advantages and disadvantages. This paper summarized the research progress on the source, distribution, degradation, analytical extraction, detection, and removal techniques of TCS and related compounds in different environmental samples. The commonly used analytical extraction methods for TCS and related compounds include solid-phase extraction, liquid-liquid extraction, solid-phase microextraction, liquid-phase microextraction, and so on. The determination methods include liquid chromatography coupled with different detectors, gas chromatography and related methods, sensors, electrochemical method, capillary electrophoresis. The removal techniques in various environmental samples mainly include biodegradation, advanced oxidation, and adsorption methods. Besides, both the pros and cons of different techniques have been compared and summarized, and the development and prospect of each technique have been given.
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Affiliation(s)
- Chen Sun
- School of Pharmacy, China Medical University, Shenyang 110122, China; Department of Pharmaceutics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China
| | - Ting Zhang
- Department of Thyroid Surgery, The First Hospital of China Medical University, Shenyang 110001, China
| | - Yu Zhou
- Department of Pharmacy, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Zhi-Fei Liu
- School of Pharmacy, China Medical University, Shenyang 110122, China
| | - Yuan Zhang
- School of Pharmacy, China Medical University, Shenyang 110122, China.
| | - Yu Bian
- School of Pharmacy, China Medical University, Shenyang 110122, China.
| | - Xue-Song Feng
- School of Pharmacy, China Medical University, Shenyang 110122, China.
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Milanović M, Đurić L, Milošević N, Milić N. Comprehensive insight into triclosan-from widespread occurrence to health outcomes. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:25119-25140. [PMID: 34741734 PMCID: PMC8571676 DOI: 10.1007/s11356-021-17273-0] [Citation(s) in RCA: 30] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 10/25/2021] [Indexed: 05/17/2023]
Abstract
Humans are exposed to the variety of emerging environmental pollutant in everyday life. The special concern is paid to endocrine disrupting chemicals especially to triclosan which could interfere with normal hormonal functions. Triclosan could be found in numerous commercial products such as mouthwashes, toothpastes and disinfectants due to its antibacterial and antifungal effects. Considering the excessive use and disposal, wastewaters are recognized as the main source of triclosan in the aquatic environment. As a result of the incomplete removal, triclosan residues reach surface water and even groundwater. Triclosan has potential to accumulate in sediment and aquatic organisms. Therefore, the detectable concentrations of triclosan in various environmental and biological matrices emerged concerns about the potential toxicity. Triclosan impairs thyroid homeostasis and could be associated with neurodevelopment impairment, metabolic disorders, cardiotoxicity and the increased cancer risk. The growing resistance of the vast groups of bacteria, the evidenced toxicity on different aquatic organisms, its adverse health effects observed in vitro, in vivo as well as the available epidemiological studies suggest that further efforts to monitor triclosan toxicity at environmental levels are necessary. The safety precaution measures and full commitment to proper legislation in compliance with the environmental protection are needed in order to obtain triclosan good ecological status. This paper is an overview of the possible negative triclosan effects on human health. Sources of exposure to triclosan, methods and levels of detection in aquatic environment are also discussed.
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Affiliation(s)
- Maja Milanović
- University of Novi Sad, Faculty of Medicine, Department of Pharmacy, Novi Sad, Serbia.
| | - Larisa Đurić
- University of Novi Sad, Faculty of Medicine, Department of Pharmacy, Novi Sad, Serbia
| | - Nataša Milošević
- University of Novi Sad, Faculty of Medicine, Department of Pharmacy, Novi Sad, Serbia
| | - Nataša Milić
- University of Novi Sad, Faculty of Medicine, Department of Pharmacy, Novi Sad, Serbia
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Li Z, Wu H, You JB, Wang X, Zeng H, Lohse D, Zhang X. Surface Nanodroplet-Based Extraction Combined with Offline Analytic Techniques for Chemical Detection and Quantification. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:11227-11235. [PMID: 36067516 DOI: 10.1021/acs.langmuir.2c01242] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Liquid-liquid extraction based on surface nanodroplets can be a green and sustainable technique to extract and concentrate analytes from a sample flow. However, because of the extremely small volume of each droplet (<10 fL, tens of micrometers in base radius and a few or less than 1 μm in height), only a few in situ analytical techniques, such as surface-enhanced Raman spectroscopy, were applicable for the online detection and analysis based on nanodroplet extraction. To demonstrate the versatility of surface nanodroplet-based extraction, in this work, the formation of octanol surface nanodroplets and extraction were performed inside a 3 m Teflon capillary tube. After extraction, surface nanodroplets were collected by injecting air into the tube, by which the contact line of surface droplets was collected by the capillary force. As the capillary allows for the formation of ∼1012 surface nanodroplets on the capillary wall, ≥2 mL of octanol can be collected after extraction. The volume of the collected octanol was enough for the analysis of offline analytical techniques such as UV-vis, GC-MS, and others. Coupled with UV-vis, reliable extraction and detection of two common water pollutants, triclosan and chlorpyrifos, was shown by a linear relationship between the analyte concentration in the sample solution and UV-vis absorbance. Moreover, the limit of detection (LOD) as low as 2 × 10-9 M for triclosan (∼0.58 μg/L) and 3 × 10-9 M for chlorpyrifos (∼1.05 μg/L) could be achieved. The collected surface droplets were also analyzed via gas chromatography (GC) and fluorescence microscopy. Our work shows that surface nanodroplet extraction may potentially streamline the process in sample pretreatment for sensitive chemical detection and quantification by using common analytic tools.
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Affiliation(s)
- Zhengxin Li
- Department of Chemical and Materials Engineering, University of Alberta, Alberta T6G 1H9, Canada
| | - Hongyan Wu
- Department of Chemical and Materials Engineering, University of Alberta, Alberta T6G 1H9, Canada
| | - Jae Bem You
- Department of Chemical and Materials Engineering, University of Alberta, Alberta T6G 1H9, Canada
- Department of Chemical Engineering, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Xiaomeng Wang
- Natural Resources Canada, CanmetENERGY Devon, Alberta T9G 1A8, Canada
| | - Hongbo Zeng
- Department of Chemical and Materials Engineering, University of Alberta, Alberta T6G 1H9, Canada
| | - Detlef Lohse
- Physics of Fluids Group, Max Planck Center Twente for Complex Fluid Dynamics, JM Burgers Center for Fluid Dynamics, Mesa+, Department of Science and Technology, University of Twente, Enschede 7522 NB, The Netherlands
| | - Xuehua Zhang
- Department of Chemical and Materials Engineering, University of Alberta, Alberta T6G 1H9, Canada
- Physics of Fluids Group, Max Planck Center Twente for Complex Fluid Dynamics, JM Burgers Center for Fluid Dynamics, Mesa+, Department of Science and Technology, University of Twente, Enschede 7522 NB, The Netherlands
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Mpupa A, Nqombolo A, Mizaikoff B, Nomngongo PN. Beta-Cyclodextrin-Decorated Magnetic Activated Carbon as a Sorbent for Extraction and Enrichment of Steroid Hormones (Estrone, β-Estradiol, Hydrocortisone and Progesterone) for Liquid Chromatographic Analysis. Molecules 2021; 27:molecules27010248. [PMID: 35011480 PMCID: PMC8747044 DOI: 10.3390/molecules27010248] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 12/21/2021] [Accepted: 12/28/2021] [Indexed: 11/16/2022] Open
Abstract
A β-cyclodextrin-decorated magnetic activated carbon adsorbent was prepared and characterized using various analytical techniques (X-ray diffraction (XRD), scanning electron microscopy–electron diffraction spectroscopy (SEM-EDS) and transmission electron microscopy (TEM)), and the adsorbent was used in the development of a magnetic solid-phase microextraction (MSPE) method for the preconcentration of estrone, β-estradiol, hydrocortisone and progesterone in wastewater and river water samples. This method was optimized using the central composite design in order to determine the experimental parameters affecting the extraction procedure. The quantification of hormones was achieved using high-performance liquid chromatography equipped with a photodiode array detector (HPLC-DAD). Under optimum conditions, the linearity ranged from 0.04 to 300 µg L−1 with a correlation of determinations of 0.9969–0.9991. The limits of detection and quantification were between 0.01–0.03 and 0.033–0.1 µg L−1, with intraday and interday precisions at 1.1–3.4 and 3.2–4.2. The equilibrium data were best described by the Langmuir isotherm model, and high adsorption capacities (217–294 mg g−1) were obtained. The developed procedure demonstrated high potential as an effective technique for use in wastewater samples without significant interferences, and the adsorbent could be reused up to eight times.
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Affiliation(s)
- Anele Mpupa
- Department of Chemical Sciences, Doornfontein Campus, University of Johannesburg, P.O. Box 17011, Johannesburg 2028, South Africa; (A.M.); (A.N.); (B.M.)
- Department of Science and Innovation-National Research Foundation South African Research Chair Initiative (DSI-NRF SARChI), Nanotechnology for Water, University of Johannesburg, Doornfontein 2028, South Africa
| | - Azile Nqombolo
- Department of Chemical Sciences, Doornfontein Campus, University of Johannesburg, P.O. Box 17011, Johannesburg 2028, South Africa; (A.M.); (A.N.); (B.M.)
- Department of Science and Innovation-National Research Foundation South African Research Chair Initiative (DSI-NRF SARChI), Nanotechnology for Water, University of Johannesburg, Doornfontein 2028, South Africa
| | - Boris Mizaikoff
- Department of Chemical Sciences, Doornfontein Campus, University of Johannesburg, P.O. Box 17011, Johannesburg 2028, South Africa; (A.M.); (A.N.); (B.M.)
- Institute of Analytical and Bioanalytical Chemistry, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Philiswa Nosizo Nomngongo
- Department of Chemical Sciences, Doornfontein Campus, University of Johannesburg, P.O. Box 17011, Johannesburg 2028, South Africa; (A.M.); (A.N.); (B.M.)
- Department of Science and Innovation-National Research Foundation South African Research Chair Initiative (DSI-NRF SARChI), Nanotechnology for Water, University of Johannesburg, Doornfontein 2028, South Africa
- Correspondence: ; Tel.: +27-11-559-6571
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Bahrami M, Haji Shabani AM, Dadfarnia S, Samadzadeh Yazdi MR. Response surface methodology optimization of supramolecular dispersive liquid‐liquid microextraction‐solidified floating organic drop of brilliant green and its spectrophotometric determination. J CHIN CHEM SOC-TAIP 2021. [DOI: 10.1002/jccs.202100298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Mohammad Bahrami
- Department of Chemistry, Faculty of Science Yazd University Yazd Iran
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Rozaini MNH, Saad B, Yahaya N, Lim JW, Mohd Aris MN, Ramachandran MR. Determination of Three Endocrine Disruptors in Water Samples by Ultrasound-Assisted Salt-Induced Liquid-Liquid Microextraction (UA-SI-LLME) and High-Performance Liquid Chromatography – Diode Array Detection (HPLC-DAD). ANAL LETT 2021. [DOI: 10.1080/00032719.2021.1919691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Muhammad Nur’ Hafiz Rozaini
- Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, Perak Darul Ridzuan, Malaysia
| | - Bahruddin Saad
- Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, Perak Darul Ridzuan, Malaysia
| | - Noorfatimah Yahaya
- Integrative Medicine Cluster, Advanced Medical and Dental Institute (AMDI), Universiti Sains Malaysia, Penang, Malaysia
| | - Jun Wei Lim
- Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, Perak Darul Ridzuan, Malaysia
| | - Muhammad Naeim Mohd Aris
- Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, Perak Darul Ridzuan, Malaysia
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Bahrami M, Shabani AMH, Dadfarnia S, Moghadam MR, Baneshi M. Experimental Design Optimization of Supramolecular Dispersive Liquid–Liquid Microextraction of Nickel and its Spectrophotometric Determination. JOURNAL OF ANALYTICAL CHEMISTRY 2021. [DOI: 10.1134/s106193482104002x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Safwat N, Abdel-Ghany MF, Ayad MF. Sensitive Derivative Synchronous and Micellar Enhanced Ecofriendly Spectrofluorimetric Methods for the Determination of Atenolol, Diclofenac, and Triclosan in Drinking Tap Water. J AOAC Int 2021; 104:103-112. [PMID: 33751067 DOI: 10.1093/jaoacint/qsaa100] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 07/03/2020] [Accepted: 07/08/2020] [Indexed: 11/14/2022]
Abstract
BACKGROUND Nowadays, emergence of unexpected contaminants in drinking water is a challenging environmental problem facing humanity. OBJECTIVE Two eco-friendly spectrofluorimetric methods were proposed for the determination of three unexpected contaminants in drinking tap water. METHODS The first method is first derivative synchronous spectrofluorimetric method which was developed for simultaneous determination of atenolol (ATN) and diclofenac (DCF) without prior separation at Δλ = 70 nm and at Δλ = 80 nm for ATN and DCF, respectively. The second method was based on using sodium dodecyl sulfate (SDS) as fluorescent enhancer of triclosan (TCS) native fluorescence. TCS exhibits enhanced fluorescence at λ emission = 600 nm upon excitation at λ excitation = 299.4 nm. Solid phase extraction was carried out in both methods. RESULTS Linear calibration curves were obtained in concentration range of (4-3000 ng/mL) for ATN and (4-2000 ng/mL) for DCF, by measuring first derivative signal of fluorescence at 300 nm and 375.2 nm, respectively. TCS exhibits linear range (0.1-1 ng/mL) at 600 nm. Mean percentage recoveries were 101.04 ± 0.571, 99.66 ± 1.443, and 99.73 ± 0.566 for ATN, DCF, and TCS, respectively. CONCLUSIONS Validation of both methods were performed according to the International Conference on Harmonization guidelines. Results obtained were statistically compared with published methods and no significant differences were found. The proposed methods' greenness is evaluated using analytical Eco-scale and Green Analytical Procedure Index. A greenness comparison with previously published methods has been performed. HIGHLIGHTS Both methods were found to be eco-friendly and were successfully applied for the determination of the emerging contaminants in drinking tap water.
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Affiliation(s)
- Nardine Safwat
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Abbassia, Cairo 11566, Egypt
| | - Maha F Abdel-Ghany
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Abbassia, Cairo 11566, Egypt
| | - Miriam F Ayad
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Abbassia, Cairo 11566, Egypt
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Safwat N, Mahmoud AM, Abdel-Ghany MF, Ayad MF. In situ monitoring of triclosan in environmental water with subnanomolar detection limits using eco-friendly electrochemical sensors modified with cyclodextrins. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2021; 23:457-466. [PMID: 33555283 DOI: 10.1039/d0em00387e] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The environmental emergence of unexpected contaminants has gained the attention of the scientific community. A broad spectrum antimicrobial compound named triclosan (TCS) was detected in the environment as an emerging contaminant. Owing to its inherent toxicity, we have proposed eco-friendly potentiometric liquid state sensors to be used for monitoring and quantifying TCS in environmental water samples. The proposed sensors have been optimized by modifying the inner filling solution using hydrophilic 2-hydroxypropyl β-cyclodextrin as a complexing agent to be capable of minimizing the trans-membrane ion flux and hence improving the selective and sensitive determination of TCS in environmental matrices with low LOD values. The obtained linear response of the optimized sensor was (1 × 10-9 to 1 × 10-5 M) compared to the control sensor (1 × 10-8 to 1 × 10-4 M). The obtained limit of detection (LOD) value was found to be 9.86 × 10-10 M compared to 9.78 × 10-9 M of the control sensor. The modification of the inner filling solution of the sensor with 2-hydroxypropyl β-cyclodextrin improves not only its sensitivity but also its response time to be only 5 seconds. The electrical performance of the proposed sensor was evaluated following IUPAC recommendations. Both the pH and temperature effects were studied and optimized. Two different greenness assessment tools, Analytical Eco-scale and Green Procedure Index, were adopted upon the evaluation of the proposed sensors' greenness.
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Affiliation(s)
- Nardine Safwat
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Abbassia, Cairo 11566, Egypt.
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Exploration of a Molecularly Imprinted Polymer (MIPs) as an Adsorbent for the Enrichment of Trenbolone in Water. Processes (Basel) 2021. [DOI: 10.3390/pr9020186] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
The presence of endocrine disruptors in surface waters can have negative implications on wildlife and humans both directly and indirectly. A molecularly imprinted polymer (MIP) was explored for its potential to enhance the UV-Vis determination of trenbolone in water using solid-phase extraction (SPE). The synthesized MIP was studied using Fourier transform infrared spectra (FTIR) and scanning electron microscopy (SEM). Using the MIP resulted in a preconcentration and enrichment factor of 14 and 8, respectively. Trenbolone binding on the MIP was shown to follow a Langmuir adsorption and had a maximum adsorption capacity of 27.5 mg g−1. Interference studies showed that the MIP selectivity was not compromised by interferences in the sample. The MIP could be recycled three times before significant loss in analyte recovery.
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12
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Maslov MM, Elik A, Demirbaş A, Katin KP, Altunay N. Theoretical and experimental studies aimed at the development of vortex-assisted supramolecular solvent microextraction for determination of nickel in plant samples by FAAS. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105491] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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13
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Ultrasonic-Assisted Magnetic Solid-Phase Dispersive Extraction for Determination of Chlorpyrifos and Triclosan in Wastewater Samples prior to Liquid Chromatography Tandem Mass Spectrometry Detection. Chromatographia 2020. [DOI: 10.1007/s10337-019-03848-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Scheel GL, Teixeira Tarley CR. Simultaneous microextraction of carbendazim, fipronil and picoxystrobin in naturally and artificial occurring water bodies by water-induced supramolecular solvent and determination by HPLC-DAD. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.111897] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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15
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Selahle SK, Nomngongo PN. Supramolecular Solvent Based Liquid-Liquid Microextraction for Preconcentration of Selected Fluoroquinolone Antibiotics in Environmental Water Sample Prior to High Performance Liquid Chromatographic Determination. CURR ANAL CHEM 2019. [DOI: 10.2174/1573411014666180523093933] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Background and Objective:
A rapid, simple and environmental friendly supramolecular
solvent (SUPRAS) based liquid-liquid microextraction method for preconcentration of ciprofloxacin
(CIPRO), danofloxacin (DANO) and enrofloxacin (ENRO) from wastewater was developed.
Methods:
This microextraction technique was coupled with high-performance liquid chromatography
equipped with a diode array detector (HPLC-PDA) for detection and separation of the antibiotics. The
SUPRAS composed of decanoic acid and tricaprylymethylammonium chloride. Optimum conditions for
the extraction and preconcentration of all the antibiotics were obtained using surface response methodology
(RSM) based on Box-Behnken design.
Results:
Under optimum conditions, the limits of detection (LOD) and limit of quantification (LOQ)
ranged from 0.06-0.14 µg L−1 and 0.22-0.47 μg L−1, respectively with the preconcentration factors ranging
from 153-241. The linear dynamic ranges were between LOQ and 850 µg L−1 with correlation coefficients
ranging from 0.9928 to 0.9999. The intra-day (n = 15) and inter-day (n = 5) precisions (expressed
in terms of %RSD) for 50 µg L−1 of CIPRO, DANO and ENRO were in the range of 3.3–4%
and 4.1–5.8%, respectively.
Conclusion:
Lastly, the developed method was used for the extraction, preconcentration and quantification
of selected CIPRO, DANO and ENRO in influent and effluent wastewater samples.
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Affiliation(s)
- Shirley K. Selahle
- Department of Chemical Sciences, Faculty of Science, University of Johannesburg, Doornfontein Campus, Johannesburg, 2028, South Africa
| | - Philiswa N. Nomngongo
- Department of Chemical Sciences, Faculty of Science, University of Johannesburg, Doornfontein Campus, Johannesburg, 2028, South Africa
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Tafti EN, Dadfarnia S, Shabani AMH, Firouzabadi ZD. Determination of vanadium species in water, vegetables, and fruit samples using supramolecular solvent microextraction combined with electrothermal atomic absorption spectrometry. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2018. [DOI: 10.1007/s13738-018-1387-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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