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Hassan RO, Othman HO, Ali DS. New spectrophotometric and smartphone-based colorimetric methods for determination of atenolol in pharmaceutical formulations. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 302:123009. [PMID: 37330334 DOI: 10.1016/j.saa.2023.123009] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 05/25/2023] [Accepted: 06/10/2023] [Indexed: 06/19/2023]
Abstract
Novel spectrophotometric and smartphone-based colorimetric methods were developed and validated for the estimation of atenolol (ATE) in pharmaceutical formulations. The measurement procedure is based on the de-diazotization reaction, in which ATE is able to inhibit the diazotized sulfanilic acid from reacting with 8-hydroxy quinoline (8-HQ) in a basic medium. As a result, the formation of red-orange color azo-dye is hindered, and the color intensity is decreased proportionally to concentration of ATE. In spectrophotometric method the azo-dye color fate was monitored at 495 nm. While in smartphone-based colorimetric (SBC) method the captured image in the design processed by RGB App and transferred to the absorbance. The reactant concentrations were optimized using a central composite design (CCD) and response surface method. The methods exhibit good linearity in the 8.0 to 60.0 µg mL-1 range with no significant effect of interferences. The spectrophotometric method yields a linear equation with a slope of 0.0187 (R2 = 0.9993), a limit of detection (LOD) of 1.28 µg mL-1, and a limit of quantification (LOQ) of 4.28 µg mL-1. On the other hand, the smartphone-based colorimetric (SBC) method demonstrates a linear equation with a slope of 0.0127 (R2 = 0.9965), an LOD of 2.13 µg mL-1, and an LOQ of 7.09 µg mL-1. Analyzing ATE in pharmaceutical tablets was utilized to validate the applicability of the developed methods, and the results were statistically compared with those obtained by the HPLC method using the t-test and F-test.
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Affiliation(s)
- Rebwar Omar Hassan
- Department of Chemistry, College of Science, Salahaddin University, Erbil-Kurdistan Region, Iraq.
| | - Hazha Omar Othman
- Department of Chemistry, College of Science, Salahaddin University, Erbil-Kurdistan Region, Iraq; Pharmacy Department, Faculty of Pharmacy, Tishk International University, Erbil-Kurdistan Region, Iraq
| | - Diyar Salahuddin Ali
- Department of Chemistry, College of Science, Salahaddin University, Erbil-Kurdistan Region, Iraq; Department of Medical Laboratory Science, College of Science, Knowledge University, Erbil-Kurdistan Region, Iraq
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2
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Sisay M, Kassa A, Tesfaye A. Highly selective square wave voltammetric determination of gallic acid in groundnut and tea samples using glycine(2-aminoethanoic acid) modified carbon paste electrode. SENSORS INTERNATIONAL 2023. [DOI: 10.1016/j.sintl.2023.100227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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3
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Kumar M, Dahuja A, Tiwari S, Punia S, Tak Y, Amarowicz R, Bhoite AG, Singh S, Joshi S, Panesar PS, Prakash Saini R, Pihlanto A, Tomar M, Sharifi-Rad J, Kaur C. Recent trends in extraction of plant bioactives using green technologies: A review. Food Chem 2021; 353:129431. [PMID: 33714109 DOI: 10.1016/j.foodchem.2021.129431] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 02/02/2021] [Accepted: 02/19/2021] [Indexed: 12/21/2022]
Abstract
Phenolic compounds from plant sources have significant health-promoting properties and are known to be an integral part of folk and herbal medicines. Consumption of phenolics is known to alleviate the risk of various lifestyle diseases including cancer, cardiovascular, diabetes, and Alzheimer's. In this context, numerous plant crops have been explored and characterized based on phenolic compounds for their use as supplements, nutraceutical, and pharmaceuticals. The present review highlights some important source of bioactive phenolic compounds and novel technologies for their efficient extraction. These techniques include the use of microwave, ultrasound, and supercritical methods. Besides, the review will also highlight the use of response surface methodology (RSM) as a statistical tool for optimizing the recoveries of the phenolic bioactives from plant-based matrices.
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Affiliation(s)
- Manoj Kumar
- Chemical and Biochemical Processing Division, ICAR - Central Institute for Research on Cotton Technology, Matunga, Mumbai 400019, India; Division of Biochemistry, ICAR - Indian Agricultural Research Institute, New Delhi 110012, India.
| | - Anil Dahuja
- Division of Biochemistry, ICAR - Indian Agricultural Research Institute, New Delhi 110012, India.
| | - Sudha Tiwari
- Chemical and Biochemical Processing Division, ICAR - Central Institute for Research on Cotton Technology, Matunga, Mumbai 400019, India
| | - Sneh Punia
- Department of Food Science and Technology, Chaudhary Devi Lal University, Sirsa, India; Department of Food, Nutrition, & Packaging Sciences, Clemson University, Clemson, SC 29634, United States
| | - Yamini Tak
- Department of Biochemistry, Agriculture University, Kota 324001, India
| | - Ryszard Amarowicz
- Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland
| | - Anilkumar G Bhoite
- Department of Agricultural Botany, RCSM College of Agriculture, Kolhapur 416004, Maharashtra, India
| | - Surinder Singh
- Dr. S.S. Bhatnagar University Institute of Chemical Engineering and Technology, Panjab University, Chandigarh 160014, India
| | - Shourabh Joshi
- Department of Basic Sciences, College of Agriculture, Nagaur, Agricultural University, Jodhpur 341001, Rajasthan, India
| | - Parmjit S Panesar
- Department of Food Engg. & Technology, S.L. Institute of Engg. & Technology, Longowal 148 106, Punjab, India
| | - Ravi Prakash Saini
- Division of Seed Technology, ICAR - Indian Grassland and Fodder Research Institute, Jhansi 28400, India
| | - Anne Pihlanto
- Natural Resources Institute Finland, Myllytie, Finland
| | - Maharishi Tomar
- Division of Seed Technology, ICAR - Indian Grassland and Fodder Research Institute, Jhansi 28400, India
| | - Javad Sharifi-Rad
- Facultad de Medicina, Universidad del Azuay, Cuenca, Ecuador; Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Charanjit Kaur
- Division of Food Science and Post-Harvest Technology, ICAR-Indian Agricultural Research Institute, New Delhi 110012, India.
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Liu S, Huang Y, Qian C, Xiang Z, Ouyang G. Physical assistive technologies of solid-phase microextraction: Recent trends and future perspectives. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.115916] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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5
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Highly sensitive detection to gallic acid by polypyrrole-based MIES supported by MOFs-Co2+@Fe3O4. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.113839] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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6
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Li WL, Ding JX, Liu BM, Zhang DL, Song H, Sun XM, Liu GY, Wang JY, Ji YB. Phytochemical screening and estrogenic activity of total glycosides of Cistanche deserticola. OPEN CHEM 2019. [DOI: 10.1515/chem-2019-0035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractOver the decades, there have been continuous efforts to enhance the quality of human life. Postmenopausal syndrome is a serious concern for the wellbeing of a woman's health. Hormonal therapy is currently the mainstay of treatment for this condition. However, this therapy could lead to estrogen abuse, leading to adverse reactions and side effects. As a result, hormonal therapy has been unsuccessful in ameliorating postmenopausal syndrome. Cistanche deserticola is a classical tonic herb in traditional Chinese medicine. It exhibits significant estrogenic activity. The main active compounds of this herb are glycosides. In a previous experiment, three important factors contributing to the total glycoside yield, acteoside yield, and estrogenic activity were identified, namely, eluent concentration, pH, and eluent volume. In this experiment, an optimal purification process was determined using a central composite design-response surface methodology to obtain glycosides from this herb. An eluent (ethanol) concentration of 85% and volume of 25 BV at a pH of 11 was found to be optimal. Twenty-one active compounds were identified by a high-performance liquid chromatography/ quadrupole time-of-flight mass spectrometry assay. This study provides valuable insights for further in-depth research evaluating the estrogenic activities of total glycosides of Cistanche deserticola.
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Affiliation(s)
- Wen-Lan Li
- School of Pharmacy, Harbin University of Commerce, Harbin150076, China
| | - Jing-Xin Ding
- Research Center on Life Sciences and Environmental Sciences, Harbin University of Commerce, Harbin150076, China
| | - Bing-Mei Liu
- Engineering Research Center of Natural Anticancer Drugs, Ministry of Education, Harbin150076, China
| | - Da-Lei Zhang
- School of Pharmacy, Harbin University of Commerce, Harbin150076, China
| | - Hui Song
- Research Center on Life Sciences and Environmental Sciences, Harbin University of Commerce, Harbin150076, China
| | - Xiang-Ming Sun
- Heilongjiang Provincial Hospital, Nangang District, Harbin150076, China
| | - Gui-Yu Liu
- Heilongjiang Provincial Hospital, Nangang District, Harbin150076, China
| | - Jing-Ya Wang
- Heilongjiang Provincial Hospital, Nangang District, Harbin150076, China
| | - Yu-Bin Ji
- Research Center on Life Sciences and Environmental Sciences, Harbin University of Commerce, Harbin150076, China
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7
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Asfaram A, Ghaedi M, Javadian H, Goudarzi A. Cu- and S- @SnO 2 nanoparticles loaded on activated carbon for efficient ultrasound assisted dispersive µSPE-spectrophotometric detection of quercetin in Nasturtium officinale extract and fruit juice samples: CCD-RSM design. ULTRASONICS SONOCHEMISTRY 2018; 47:1-9. [PMID: 29908597 DOI: 10.1016/j.ultsonch.2018.04.008] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 04/06/2018] [Accepted: 04/18/2018] [Indexed: 06/08/2023]
Abstract
A simple, rapid, and efficient method of dispersive micro solid phase extraction (D-μ-SPE) combined with UV-Vis spectrophotometry via ultrasound-assisted (UA) was applied for the determination and preconcentration of quercetin in extract of watercress (Nasturtium officinale), fruit juice and water samples. The sorbent in this method was synthesized by doping copper and sulfide into the tetragonal structure of SnO2-nanoparticles (Cu- and S- @SnO2-NPs) and subsequently loading it on activated carbon (AC). The D-μ-SPE parameters with direct effect on the extraction efficiency of the targeted analyte, such as sample pH, volume of eluent, sorbent mass and ultrasound time were optimized using central composite design method. Under optimized conditions, the calibration graph for quercetin was linear in the range of 20-4000 ng mL-1; the limit of detection and quantitation were 4.35 and 14.97 ng mL-1, respectively and the enrichment factor was 95.24. Application of this method to analyze spiked extract, fruit juice and water samples resulted in acceptable recovery values ranging from 90.3% to 97.28% with intra-day and inter-day relative standard deviation values lower than 6.0% in all cases. Among the equilibrium isotherms tested, Langmuir was found to be the best fitted model with maximum sorption capacity of 39.37 mg g-1, suggesting a homogeneous mode of sorption for quercetin.
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Affiliation(s)
- Arash Asfaram
- Medicinal Plants Research Center, Yasuj University of Medical Sciences, Yasuj, Iran.
| | - Mehrorang Ghaedi
- Department of Chemistry, Yasouj University, Yasouj 75918-74831, Iran.
| | - Hamedreza Javadian
- Universitat Politècnica de Catalunya, Department of Chemical Engineering, ETSEIB, Diagonal 647, 08028 Barcelona, Spain
| | - Alireza Goudarzi
- Department of Polymer Engineering, Golestan University, Gorgan 49188-88369, Iran
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8
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Mosleh S, Rahimi MR, Ghaedi M, Asfaram A, Javadian H, Sadeghfar F, Jannesar R. Visible-light-driven photocatalytic degradation of fenpyroximate in rotating packed bed reactor using Fe3
O4
@PbS@Ni2
P magnetic nanocomposite photocatalyst: Response surface modelling and optimization. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4513] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Soleiman Mosleh
- Department of Gas and Petroleum; Yasouj University; Gachsaran Iran
| | - Mahmood Reza Rahimi
- Process Intensification Laboratory, Chemical Engineering Department; Yasouj University; Yasouj Iran
| | | | - Arash Asfaram
- Medicinal Plants Research Center; Yasuj University of Medical Sciences; Yasuj Iran
| | - Hamedreza Javadian
- Department of Chemical Engineering, ETSEIB; Universitat Politècnica de Catalunya; Barcelona Spain
| | - Fardin Sadeghfar
- Chemistry Department; Yasouj University; Yasouj Iran
- Department of Biotechnology and Microbial Nanotechnology; Dena Pathobiology Laboratory; Yasuj Iran
| | - Ramin Jannesar
- Department of Biotechnology and Microbial Nanotechnology; Dena Pathobiology Laboratory; Yasuj Iran
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Ostovan A, Asadollahzadeh H, Ghaedi M. Ultrasonically synthesis of Mn- and Cu- @ ZnS-NPs-AC based ultrasound assisted extraction procedure and validation of a spectrophotometric method for a rapid preconcentration of Allura Red AC (E129) in food and water samples. ULTRASONICS SONOCHEMISTRY 2018; 43:52-60. [PMID: 29555288 DOI: 10.1016/j.ultsonch.2018.01.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2017] [Revised: 12/31/2017] [Accepted: 01/01/2018] [Indexed: 06/08/2023]
Abstract
This study is devoted on Allura Red as food colorant preconcentration and determination in beverage, fruit juice and drink water samples is based on usage of Mn- and Cu- @ ZnS-NPs-AC as new sorbent for ultrasound-assisted-dispersive solid-phase microextraction (UA-DSPME) combined with ultraviolet-visible spectrophotometric based method (UV-Vis). Contribution of volume of eluent, pH, sorbent mass and sonication time on response following conduction of 28 experiments were optimized and investigated while their significantly justified according to p-value. Values of "Prob > F" less than 0.0500 is proportional with their significant influence on recovery of analyte. Under the optimum conditions 0.14 mL of THF; pH of 2.5; 8 mg of sorbent and 3 min sonication time guide and help achievement of limit of quantification (LOQ) and limit of detection (LOD) of 6.08 and 20.26 ng mL-1, respectively. The accuracy of method was validated according to calculation of recovery following spiking 400 and 600 ng mL-1 to blank solution and recovery as more reliable indication of accuracy 93.41 and 102.17% recoveries with RSD < 3.5%, which demonstrate the successful applicability of present method for real sample analysis. The maximum sorbent capacity was 50.0 mg g-1 based on Langmuir isotherm as best model with high correlation coefficient. Combination of UA-DSPME and UV-Vis lead to higher sensitivity and lower cost for accurate and repeatable monitoring of Allura Red level in beverage, fruit juice and drink water samples with acceptable recovery and reasonable RSD%.
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Affiliation(s)
- Abbas Ostovan
- Department of Chemistry, Kerman Branch, Islamic Azad University, Kerman, Iran
| | | | - Mehrorang Ghaedi
- Chemistry Department, Yasouj University, Yasouj 75918-74831, Iran.
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10
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Magnetic based nanocomposite sorbent combination with ultrasound assisted for solid-phase microextraction of Azure II in water samples prior to its determination spectrophotometric. J Colloid Interface Sci 2018; 513:240-250. [DOI: 10.1016/j.jcis.2017.11.031] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 10/08/2017] [Accepted: 11/09/2017] [Indexed: 11/18/2022]
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11
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Zhang J, Li B, Yue H, Wang J, Zheng Y. Highly selective and efficient imprinted polymers based on carboxyl-functionalized magnetic nanoparticles for the extraction of gallic acid from pomegranate rind. J Sep Sci 2017; 41:540-547. [DOI: 10.1002/jssc.201700822] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 10/16/2017] [Accepted: 10/17/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Junjie Zhang
- Department of Chemistry; School of Science; Xi'an Jiaotong University; Xi'an China
| | - Benqiang Li
- Department of Chemistry; School of Science; Xi'an Jiaotong University; Xi'an China
| | - Huijuan Yue
- Department of Chemistry; School of Science; Xi'an Jiaotong University; Xi'an China
| | - Jing Wang
- Department of Chemistry; School of Science; Xi'an Jiaotong University; Xi'an China
| | - Yuansuo Zheng
- Department of Chemistry; School of Science; Xi'an Jiaotong University; Xi'an China
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12
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Effects of gallic acid on hemodynamic parameters and infarct size after ischemia-reperfusion in isolated rat hearts with alloxan-induced diabetes. Biomed Pharmacother 2017; 96:612-618. [DOI: 10.1016/j.biopha.2017.10.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 09/19/2017] [Accepted: 10/02/2017] [Indexed: 01/07/2023] Open
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13
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Alipanahpour Dil E, Ghaedi M, Asfaram A, Zare F, Mehrabi F, Sadeghfar F. Comparison between dispersive solid-phase and dispersive liquid-liquid microextraction combined with spectrophotometric determination of malachite green in water samples based on ultrasound-assisted and preconcentration under multi-variable experimental design optimization. ULTRASONICS SONOCHEMISTRY 2017; 39:374-383. [PMID: 28732958 DOI: 10.1016/j.ultsonch.2017.05.011] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 05/05/2017] [Accepted: 05/06/2017] [Indexed: 06/07/2023]
Abstract
The ultrasound-assisted dispersive solid-phase microextraction (USA-DSPME) and the ultrasound-assisted dispersive liquid-liquid microextraction (USA-DLLME) developed for as an ultra preconcentration and/or technique for the determination of malachite green (MG) in water samples. Central composite design based on analysis of variance and desirability function guide finding best operational conditions and represent dependency of response to variables viz. volume of extraction, eluent and disperser solvent, pH, adsorbent mass and ultrasonication time has significant influence on methods efficiency. Optimum conditions was set for USA-DSPME as: 1mg CNTs/Zn:ZnO@Ni2P-NCs; 4min sonication time and 130μL eluent at pH 6.0. Meanwhile optimum point for USA-DLLME conditions were fixed at pH 6.0; 4min sonication time and 130, 650μL and 10mL of extraction solvent (CHCl3), disperser solvent (ethanol) and sample volume, respectively. Under the above specified best operational conditions, the enrichment factors for the USA-DSPME and USA-DLLME were 88.89 and 147.30, respectively. The methods has linear response in the range of 20.0 to 4000.0ngmL-1 with the correlation coefficients (r) between 0.9980 to 0.9995, while its reasonable detection limits viz. 1.386 to 2.348ngmL-1 and good relative standard deviations varied from 1.1% to 2.8% (n=10) candidate this method for successful monitoring of analyte from various media. The relative recoveries of the MG dye from water samples at spiking level of 500ngmL-1 were in the range between 94.50% and 98.86%. The proposed methods has been successfully applied to the analysis of the MG dye in water samples, and a satisfactory result was obtained.
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Affiliation(s)
| | - Mehrorang Ghaedi
- Chemistry Department, Yasouj University, Yasouj 75918-74831, Iran.
| | - Arash Asfaram
- Chemistry Department, Yasouj University, Yasouj 75918-74831, Iran
| | - Fahimeh Zare
- Chemistry Department, Yasouj University, Yasouj 75918-74831, Iran
| | - Fatemeh Mehrabi
- Young Researchers and Elite Club, Gachsaran Branch, Islamic Azad University, Gachsaran, Iran
| | - Fardin Sadeghfar
- Chemistry Department, Yasouj University, Yasouj 75918-74831, Iran
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Asfaram A, Ghaedi M, Purkait MK. Novel synthesis of nanocomposite for the extraction of Sildenafil Citrate (Viagra) from water and urine samples: Process screening and optimization. ULTRASONICS SONOCHEMISTRY 2017. [PMID: 28633848 DOI: 10.1016/j.ultsonch.2017.03.045] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
A sensitive analytical method is investigated to concentrate and determine trace level of Sildenafil Citrate (SLC) present in water and urine samples. The method is based on a sample treatment using dispersive solid-phase micro-extraction (DSPME) with laboratory-made Mn@ CuS/ZnS nanocomposite loaded on activated carbon (Mn@ CuS/ZnS-NCs-AC) as a sorbent for the target analyte. The efficiency was enhanced by ultrasound-assisted (UA) with dispersive nanocomposite solid-phase micro-extraction (UA-DNSPME). Four significant variables affecting SLC recovery like; pH, eluent volume, sonication time and adsorbent mass were selected by the Plackett-Burman design (PBD) experiments. These selected factors were optimized by the central composite design (CCD) to maximize extraction of SLC. The results exhibited that the optimum conditions for maximizing extraction of SLC were 6.0 pH, 300μL eluent (acetonitrile) volume, 10mg of adsorbent and 6min sonication time. Under optimized conditions, virtuous linearity of SLC was ranged from 30 to 4000ngmL-1 with R2 of 0.99. The limit of detection (LOD) was 2.50ngmL-1 and the recoveries at two spiked levels were ranged from 97.37 to 103.21% with the relative standard deviation (RSD) less than 4.50% (n=15). The enhancement factor (EF) was 81.91. The results show that the combination UAE with DNSPME is a suitable method for the determination of SLC in water and urine samples.
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Affiliation(s)
- Arash Asfaram
- Chemistry Department, Yasouj University, Yasouj 75918-74831, Iran
| | - Mehrorang Ghaedi
- Chemistry Department, Yasouj University, Yasouj 75918-74831, Iran.
| | - Mihir Kumar Purkait
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
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15
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Saad M, Tahir H. Synthesis of carbon loaded γ-Fe 2O 3 nanocomposite and their applicability for the selective removal of binary mixture of dyes by ultrasonic adsorption based on response surface methodology. ULTRASONICS SONOCHEMISTRY 2017; 36:393-408. [PMID: 28069226 DOI: 10.1016/j.ultsonch.2016.12.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Revised: 12/07/2016] [Accepted: 12/07/2016] [Indexed: 06/06/2023]
Abstract
The contemporary problems concerning water purification could be resolved by using nanosorbents. The present studies emphasis on the synthesis of γ-Fe2O3-activated carbon nanocomposites (γ-Fe2O3-NP-AC) by sol-gel method. The composition and surface morphology of them were studied by FTIR, EDS, SEM and XRD techniques. Moreover they were employed for the selective removal of binary mixture of dyes including reactive red 223 dye (RR) and Malachite Green dye (MG) by ultrasonic assisted adsorption method. Sonication is the act of applying sound energy to agitate particles in the sample. The ultrasonic frequencies (>20kHz) were used to agitate experimental solutions in current studies. The response surface methodology based on 5 factorial central composite design (CCD) was employed to investigate the optimum parameters of adsorption. The optimum operating parameters (OOP) including sonication time, solution pH, amount of adsorbent, concentration of RR and MG were estimated for the selective removal of mixture of dyes. On OOP conditions of RR, the % removal of RR and MG were observed to be 92.12% and 10.05% respectively. While at OOP of MG, the % removal of MG and RR were observed to be 85.32% and 32.13% from the mixture respectively. Moreover the mechanisms of adsorption of RR and MG on the γ-Fe2O3-NP-AC were also illustrated. The significance of the RR-γ-Fe2O3-NP-AC and MG-γ-Fe2O3-NP-AC adsorption models was affirmed by ANOVA test. The Pareto plots for the selective removal of the RR and MG from the binary mixture also confirm the significance of the factors. Isothermal studies were performed and RR adsorption was observed to follow Langmuir isotherm model whereas MG adsorption was observed to follow Freundlich model. Thermodynamic studies were conducted and the outcomes suggested the spontaneous nature of adsorption processes. The kinetic models were employed to study the kinetics of the process. It was observed that the system followed pseudo second order, intra-particle diffusion and Elovich models as represented by the R2 values of the respective models. The comparative study from the previously studies revealed that the proposed method is amongst them is the most efficient method to eliminate RR and MG dyes from the aqueous medium. Therefore the current study will be useful in reducing the toxicity of RR and MG contaminated effluent.
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Affiliation(s)
- Muhammad Saad
- Department of Chemistry, University of Karachi, 75270, Pakistan.
| | - Hajira Tahir
- Department of Chemistry, University of Karachi, 75270, Pakistan.
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