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Riyal I, Singh KK, Ramola A, Rawat J, Pathak SK, Panja S, Sharma H, Dwivedi C. Fabrication of magnetite/GO/potassium copper hexacyanoferrate nanocomposite for removal of radioactive cesium ions. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2024; 278:107481. [PMID: 38885562 DOI: 10.1016/j.jenvrad.2024.107481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 05/17/2024] [Accepted: 06/09/2024] [Indexed: 06/20/2024]
Abstract
Metal hexacyanoferrates (MHCF) are a class of inorganic adsorbents used for wastewater management due to the presence of interstitial sites for capturing heavy metal ions. In present work, we are reporting the synthesis of magnetic nanocomposite of Fe3O4/graphene oxide/potassium copper hexacyanoferrate via wet chemical and coprecipitation approach. Potassium copper hexacyanoferrate (KCuHCF) and Graphene oxide (GO) both are marvelous adsorbents but their nano-size becomes a major obstacle in their separation process after the adsorption of the radionuclides. Thus, our synthesized nanocomposite Fe3O4/GO/KCuHCF enhances the recovery of KCuHCF even after radioactive Cs+ adsorption with adsorption capacity of 18 mg g-1 coinciding well with the Langmuir adsorption isotherm mechanism. The synthesized adsorbent is characterized thoroughly using UV-Visible spectroscopy, FT-IR, TGA, XPS, Raman spectroscopy, TEM-EDAX and XRD. This synthesized nanocomposite is used for the batch extraction of radioactive Cs+ from low level radioactive waste (LLW). The extraction kinetics followed pseudo-second-order kinetics mechanism.
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Affiliation(s)
| | - Krishan Kant Singh
- Radiation & Photochemistry Division, India; Homi Bhabha National Institute, Trombay, Mumbai, 400094, India
| | | | | | - Sanjay Kumar Pathak
- Fuel Reprocessing Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Surajit Panja
- Homi Bhabha National Institute, Trombay, Mumbai, 400094, India
| | - Himani Sharma
- Department of Physics Doon University, Dehradun, 248001, India
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Javaheri-Ghezeldizaj F, Alizadeh AM, Dehghan P, Ezzati Nazhad Dolatabadi J. Pharmacokinetic and toxicological overview of propyl gallate food additive. Food Chem 2023; 423:135219. [PMID: 37178593 DOI: 10.1016/j.foodchem.2022.135219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 12/10/2022] [Accepted: 12/12/2022] [Indexed: 05/15/2023]
Abstract
The progressive use of food additives in "ultra-processed" food has increased attention to them. Propyl gallate (PG) is an essential synthetic preservative that commonly used in food, cosmetics, and pharmacies as an antioxidant. This study aimed to outline the existing evidence on the toxicological studies of PG including its physicochemical properties, metabolism, and pharmacokinetics effects. The methods include updated searches for the relevant databases. The EFSA has evaluated the use of PG in food industry. It establishes an acceptable daily intake (ADI) of 0.5 mg/kg bw per day. Based on exposure assessment, it can be concluded that at the current level of use, PG is not of safety concern.
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Affiliation(s)
- Fatemeh Javaheri-Ghezeldizaj
- Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Adel Mirza Alizadeh
- Social Determinants of Health Research Center, Zanjan University of Medical Sciences, Zanjan, Iran; Department of Food Safety and Hygiene, School of Public Health, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Parvin Dehghan
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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da Penha RDLMP, Dos Santos CC, Bezerra CWB, Damos FS, Luz RDCS. A low-cost carbon-based electrochemical platform for determining 2,3-dihydroxyphenol: applications in natural water and biodiesel samples. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:807-817. [PMID: 36722862 DOI: 10.1039/d2ay01178f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
2,3-Dihydroxyphenol (DHP) is a phenolic compound that has been used as an additive in biodiesel to avoid the auto-oxidation of biofuels and also in the production of cosmetic products. However, this substance can be released into the environment during its manufacture, transport, disposal and industrial use and can be harmful to health due to its toxicity, and hence, monitoring its presence in different samples is very important. Therefore, this work describes an electroanalytical study of DHP using different carbon-based pastes prepared to evaluate which one would be more promising to be used as an electrochemical platform for DHP quantification. The materials studied (graphite, carbon black and carbon nanotubes) in this work were characterized by Fourier transform infrared (FTIR) spectroscopy, Raman spectroscopy and the Boehm method. Voltammetric studies showed that pure carbon black presented a higher current density for detecting DHP than the other materials tested (graphite, carbon black + graphite, carbon nanotubes, carbon nanotubes + graphite). In studying the medium's pH, the highest currents occurred in acid media and acetate buffer solutions. After optimizing the experimental parameters, it was possible to obtain a wide range of linear responses from 0.1 to 10 000 μmol L-1 for DHP and a good limit of detection (LOD) of 0.03 μmol L-1. The selectivity of the electrode was tested for different species that may be present in samples containing DHP. Finally, the electrode was applied to determine DHP in natural water and biodiesel samples, showing recovery values between 98 and 102%, indicating good accuracy.
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Affiliation(s)
- Ricky de La Martini Pereira da Penha
- Departamento de Química, Laboratório de Sensores Dispositivos e Métodos Analíticos, Universidade Federal do Maranhão, 65080-805, São Luís, MA, Brazil.
| | - Clenilton Costa Dos Santos
- Departamento de Física, Laboratório de Espectroscopia Vibracional e Impedância, Universidade Federal do Maranhão, CEP 65080-805, São Luís, MA, Brazil
| | - Cicero Wellington Brito Bezerra
- Departamento de Química, Laboratório de Interfaces e Materiais, Universidade Federal do Maranhão, 65080-805, São Luís, MA, Brazil
| | - Flavio Santos Damos
- Departamento de Química, Laboratório de Sensores Dispositivos e Métodos Analíticos, Universidade Federal do Maranhão, 65080-805, São Luís, MA, Brazil.
| | - Rita de Cássia Silva Luz
- Departamento de Química, Laboratório de Sensores Dispositivos e Métodos Analíticos, Universidade Federal do Maranhão, 65080-805, São Luís, MA, Brazil.
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Ma X, Lv H, Chen M, Liu H, Xue S, Zhu Q, Wang X. Novel electrochemical sensor for determination of propyl gallate based on poly(γ-aminobutyric acid) incorporating gold nanoclusters. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Li H, Li Q, Shi Q, Wang Y, Liu X, Tian H, Wang X, Yang D, Yang Y. Hemin loaded Zn-N-C single-atom nanozymes for assay of propyl gallate and formaldehyde in food samples. Food Chem 2022; 389:132985. [PMID: 35504070 DOI: 10.1016/j.foodchem.2022.132985] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 04/10/2022] [Accepted: 04/12/2022] [Indexed: 11/24/2022]
Abstract
Single-atom nanozymes (SAzymes) show distinct advantages in catalytic activity and selectivity owing to their stability and special characteristic of maximum atomic utilization. Inspired by the structure of natural horseradish peroxidase (HRP), we developed a simple method for specific determination of both propyl gallate (PG) and formaldehyde (HCHO) by utilizing the intrinsic peroxidase mimics activity of hemin (hem) loaded Zn-nitrogen-carbon single-atom nanozymes (Zn-N-C@hem SAzymes). Zn-N-C@hem was prepared via a salt-template strategy and self-assembly, where hemin exhibits enhancing peroxidase-like activity can catalyze oxidation of colorless PG to yellow product. Upon introduction of HCHO into Zn-N-C@hem/PG system, complete suppression of PG oxidation was showed, resulting in distinguished decrease in absorbance. The colorimetric sensors of PG and HCHO based on Zn-N-C@hem/PG were developed at their respective linear range of concentration 1.25-200 mg/kg and 5-250 mg/kg. The practicability of the rapid analysis of PG and HCHO in food samples has been verified with reliable results.
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Affiliation(s)
- Hong Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China; Institute of Agro-Products Processing, Yunnan Academy of Agricultural Sciences, Kunming 650221, China
| | - Qiulan Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Qiao Shi
- Institute of Agro-Products Processing, Yunnan Academy of Agricultural Sciences, Kunming 650221, China
| | - Yijie Wang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Xiuwei Liu
- Institute of Agro-Products Processing, Yunnan Academy of Agricultural Sciences, Kunming 650221, China
| | - Hao Tian
- Institute of Agro-Products Processing, Yunnan Academy of Agricultural Sciences, Kunming 650221, China
| | - Xinrui Wang
- Institute of Agro-Products Processing, Yunnan Academy of Agricultural Sciences, Kunming 650221, China
| | - Dezhi Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China.
| | - Yaling Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China.
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Wang H, Liu X, Tu M, Xu X, Yang S, Chen D. Current Sample Preparation Methods and Analytical Techniques for the Determination of Synthetic Antioxidants in Edible Oils. J Sep Sci 2022; 45:3874-3886. [PMID: 35984364 DOI: 10.1002/jssc.202200358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 08/14/2022] [Accepted: 08/15/2022] [Indexed: 11/08/2022]
Abstract
Synthetic antioxidants play a critical role in the storage and process of edible oil due to that they can retard lipid oxidation, maintain the quality of oils, and prolong the shelf life. However, a series of studies have proved the potential risks of synthetic antioxidants for human health when consumed in excess, and many countries have established the permitted amounts of synthetic antioxidants in oils. Thus, the accurate quantification of synthetic antioxidants in edible oils is necessary, and there have developed various analytical methods involved in chromatographical, electrochemical, and spectroscopic methods. Owing to the complex matrix and the incompatibility between the oil sample and the detection instrument, sample preparation is usually adopted prior to the instrument detection to improve the detection effectiveness. The current review aims to provide a comprehensive overview of the recently developed sample preparation methods and analytical techniques applied to determine synthetic antioxidants in edible oils from 2010 to present, with emphasis on the sample preparation methods combined with separation-based analytical techniques such CE and LC with various detectors. The advantages and limitations of some typical analytical methods are discussed and some insights in the future perspectives are also provided in this review. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Honglei Wang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Xueting Liu
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Menglin Tu
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Xia Xu
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, China.,Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases of Henan Province, Zhengzhou, 450001, China
| | - Sen Yang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, China.,Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases of Henan Province, Zhengzhou, 450001, China
| | - Di Chen
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, China.,Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases of Henan Province, Zhengzhou, 450001, China
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Silah H, Erkmen C, Demir E, Uslu B. Modified indium tin oxide electrodes: Electrochemical applications in pharmaceutical, biological, environmental and food analysis. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116289] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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