Electroanalysis最新文献_第5页

Cover Picture: (Electroanalysis 7/2024) 封面图片：（电解 7/2024）

IF 2.7 3区化学

Electroanalysis Pub Date : 2024-07-12 DOI: 10.1002/elan.202480701

引用次数: 0

Electrochemical Quartz Crystal Microbalance Study of Underpotential Deposition of Mercury on Iridium Metal and Iridium Oxide 汞在金属铱和氧化铱上的电位沉积的电化学石英晶体微天平研究

IF 3 3区化学

Electroanalysis Pub Date : 2024-07-11 DOI: 10.1002/elan.202400154

Tsukasa Nagai, Zyun Siroma, Tomoki Akita, Tsutomu Ioroi

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Plant-assisted synthesis of Fe3O4 nanoparticles for catalytic degradation of methyl orange dye and electrochemical sensing of nitrite 植物辅助合成用于催化降解甲基橙染料和电化学传感亚硝酸盐的 Fe3O4 纳米粒子

IF 2.7 3区化学

Electroanalysis Pub Date : 2024-07-08 DOI: 10.1002/elan.202300422

Siti Husnaa Mohd Taib, Pooria Moozarm Nia, Roshafima Rasit Ali, Zahra Izadiyan, Zatil Izzah Tarmizi, Kamyar Shameli

{"title":"Plant-assisted synthesis of Fe3O4 nanoparticles for catalytic degradation of methyl orange dye and electrochemical sensing of nitrite","authors":"Siti Husnaa Mohd Taib, Pooria Moozarm Nia, Roshafima Rasit Ali, Zahra Izadiyan, Zatil Izzah Tarmizi, Kamyar Shameli","doi":"10.1002/elan.202300422","DOIUrl":"10.1002/elan.202300422","url":null,"abstract":"The present study details a more environmentally friendly method for synthesizing iron oxide nanoparticles (Fe3O4-NPs) utilizing Hibiscus sabdariffa (H. sabdariffa) leaf extract. The produced H. sabdariffa/Fe3O4-NPs underwent characterization through VSM, XRD, FESEM-EDX, TEM and FTIR analyses. The FESEM and TEM images revealed that the H. sabdariffa/Fe3O4-NPs had a narrow distribution and an average particle size of 5±2 nm. Catalytic degradation studies of the synthesized Fe3O4-NPs exhibited efficient reduction of methyl orange (MO) dye. The degradation of MO catalysed by H. sabdariffa/Fe3O4-NPs follow the pseudo-first order kinetics, with a rate constant of 0.0328 s−1 (R2=0.9866). Moreover, in electrochemical sensing studies, the anodic peak current of nitrite (NO2−) for H. sabdariffa/Fe3O4-NPs/GCE showed a linear relationship with its concentration within the range of 0.5–7.5 mM, achieving a detection limit of 0.29 μM. These findings demonstrate that the modified electrode with Fe3O4-NPs synthesized using H. sabdariffa leaf extract serve as a novel electrochemical sensor for determining NO2− with high sensitivity and reproducibility.","PeriodicalId":162,"journal":{"name":"Electroanalysis","volume":"36 9","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/elan.202300422","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141568587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimization of electrolyte-insulator-semiconductor capacitor sensor by differential design 通过差分设计优化电解质-绝缘体-半导体电容器传感器

IF 3 3区化学

Electroanalysis Pub Date : 2024-07-05 DOI: 10.1002/elan.202400201

Jiezhang Luo, Shibin Liu, Yinghao Chen, Jie Tan, Wenbo Zhao, Yongyi Yang, Chenbo Hui, Yaoxin Zheng, Yue Tan, Guifang Li, Xueliang Li

引用次数: 0

Potentiometric determination of nitrazepam in pharmaceutical dosage form and spiked plasma using a novel modified carbon paste electrode 使用新型改性碳浆电极电位测定药物剂型和血浆中的硝西泮

IF 2.7 3区化学

Electroanalysis Pub Date : 2024-07-01 DOI: 10.1002/elan.202400063

Marwa M. Azab, Mohamed Rizk, Omaima M. Mohamed, Amir Shaaban Farag

{"title":"Potentiometric determination of nitrazepam in pharmaceutical dosage form and spiked plasma using a novel modified carbon paste electrode","authors":"Marwa M. Azab, Mohamed Rizk, Omaima M. Mohamed, Amir Shaaban Farag","doi":"10.1002/elan.202400063","DOIUrl":"10.1002/elan.202400063","url":null,"abstract":"A newly prepared solid contact ion selective electrode based on polyvinyl chloride membrane has been optimized and developed for determining nitrazepam in its pure form and synthetically prepared tablet dosage form. The proposed electrode was fabricated based on zeolite modified carbon paste electrode as a solid contact acting as a support for the membrane of PVC containing the ion complex of nitrazepam-tetraphenyl borate as an electroactive material, and the plasticizer dibutyl phthalate. By improving the composition, the potentiometric properties were further enhanced, and the sensor achieved a Nernstian slope of 60.89 mV dec−1. The sensor was effective for detecting nitrazepam in the concentration range of 1.0×10−7 to 1.0×10−2 M, with a detection limit of 4.7×10−8 M. The sensor demonstrated excellent reversibility and reproducibility with a fast response time and application over a wide pH range. The developed electrode showed no significant effect when tested with various interfering species. It is successfully applied for accurate determination of nitrazepam in pure form, synthetically prepared tablet and spiked human plasma. The developed technique was validated and demonstrated high accuracy and precision. When compared statistically with the official method, there were no significant differences observed.","PeriodicalId":162,"journal":{"name":"Electroanalysis","volume":"36 11","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141500889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Electrochemical Detection of Glyphosate in Aqueous Environments Using Modified Carbon Nitride/ZIF67 Nanocomposites 利用改性氮化碳/ZIF67 纳米复合材料对水环境中的草甘膦进行电化学检测

IF 3 3区化学

Electroanalysis Pub Date : 2024-06-28 DOI: 10.1002/elan.202400190

Qi Wang, Yao Liu, Ao-Lan Shu, Xing Chen

引用次数: 0

Point‐of‐Care Testing of DNA damage markers‐8‐hydroxy‐2′‐deoxyguanosine based on Cobalt‐Iron‐Platinum‐Ruthenium/N doped Ordered Mesoporous Carbon 基于掺杂钴-铁-铂-钌/N 的有序介孔碳的 DNA 损伤标记物-8-羟基-2′-脱氧鸟苷的护理点检测技术

IF 3 3区化学

Electroanalysis Pub Date : 2024-06-27 DOI: 10.1002/elan.202400185

Yuxin Zhao, Fangxun Liu, Tong Zhang, Zheng Man, Shi Kun, Xin Yang, Pinyi Zhao, Xin Li, Yufan Zhang, Pan Li, Huan Wang

引用次数: 0

Preparation of longan shell biochar and its application in fabrication of nitrite electrochemical sensing electrode 龙眼壳生物炭的制备及其在亚硝酸盐电化学传感电极制造中的应用

IF 3 3区化学

Electroanalysis Pub Date : 2024-06-27 DOI: 10.1002/elan.202400148

Qian Chen, Limin Wang, Minghao He, Yuxin Wang, Decheng Bi, Jianzi Huang, Chaogang Wang, Xu Xu, Zhangli Hu, hong xu

引用次数: 0

Cost‐effective Amperometric Sensor for Monitoring Levofloxacin in Groundwater 用于监测地下水中左氧氟沙星的高性价比安培传感器

IF 3 3区化学

Electroanalysis Pub Date : 2024-06-26 DOI: 10.1002/elan.202400096

Bryan Alvarez-Serna, Tania A. García-Mejía, Sandra Yazmin Arzate Salgado, Ana Yañez-Aulestia, Roberto G. Ramírez-Chavarría, Rosa-Maria Ramirez-Zamora

引用次数: 0

Ultrasensitive monitoring of Ciprofloxacin with green reduced graphene oxide@clay composite 利用绿色还原氧化石墨烯粘土复合材料对环丙沙星进行超灵敏监测

IF 2.7 3区化学

Electroanalysis Pub Date : 2024-06-25 DOI: 10.1002/elan.202300254

M. Azriouil, A. Hrioua, B. Chhaibi, F. Laghrib, A. Farahi, M. Bakasse, S. Lahrich, M. A. El Mhammedi

{"title":"Ultrasensitive monitoring of Ciprofloxacin with green reduced graphene oxide@clay composite","authors":"M. Azriouil, A. Hrioua, B. Chhaibi, F. Laghrib, A. Farahi, M. Bakasse, S. Lahrich, M. A. El Mhammedi","doi":"10.1002/elan.202300254","DOIUrl":"10.1002/elan.202300254","url":null,"abstract":"The accumulation of harmful residuals can lead to voluminous environmental problems and then negatively affect human health. For this purpose, it is necessary to focus on the development of a rapid and sensitive strategy for its monitoring. In this work, a green, fairly fast, inexpensive and sensitive electrochemical sensor was developed to determine and monitor Cipro residues in various samples such as environmental resources, wastewater, urine, and drug formulations (Flonox 500 Aflox 500 and Cifloxine 250). It consists of a carbon paste electrode (CPE) modified with clay-supported reduced graphene oxide composite (GrGO/CL@CPE). The rGO was prepared using green and easily chemically converted GO (electrochemically prepared) to rGO nanosheets based on glucose (G) as a green reducing agent (GrGO). The proposed sensor demonstrates a high electro-oxidation signal compared with other based sensors, and the oxidation potential was found to be reduced by around 35 mV. The GrGO/CL@CPE was used for monitoring Cipro in the range of 0.05–10 μM in phosphate buffer at a biological pH of 7 (PB_7) and it offered a low detection limit (DL) (S/N=3) of 0.048 μM. Furthermore, it was found to be capable of detecting Cipro in pronounced samples with excellent results, offering promising prospects for actual clinical assays.","PeriodicalId":162,"journal":{"name":"Electroanalysis","volume":"36 9","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141500893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0