Electroanalysis最新文献_第6页

Controlled and restricted growth of cobalt nanoparticles embedded in ordered mesoporous carbons @ carbon nanotubes for metronidazole electrochemical biosensing study 嵌入有序介孔碳 @ 纳米碳管的钴纳米粒子的受控和受限生长，用于甲硝唑电化学生物传感研究

IF 3 3区化学

Electroanalysis Pub Date : 2024-06-24 DOI: 10.1002/elan.202400168

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

引用次数: 0

New redox behavior and electrochemical sensing of anticoagulant rodenticide bromadiolone using low‐cost graphite electrode: an ultrasensitive tool for forensic and environmental analysis 使用低成本石墨电极检测抗凝血剂杀鼠剂溴敌隆的新氧化还原行为和电化学传感：用于法医和环境分析的超灵敏工具

IF 3 3区化学

Electroanalysis Pub Date : 2024-06-22 DOI: 10.1002/elan.202400146

Thaylor Teixeira Conrado, Evandro Rodrigo Pedão, Valdir Ferreira, Rodrigo Silva, Jacqueline Marques Petroni, Bruno Gabriel Lucca

引用次数: 0

Comparative Study of Various Metal‐Based Reference Electrodes 各种金属基基准电极的比较研究

IF 3 3区化学

Electroanalysis Pub Date : 2024-06-21 DOI: 10.1002/elan.202400139

Martin Baroch, Hana Dejmkova

引用次数: 0

Electrochemical study and simultaneous square-wave voltammetric determination of tyramine and spermidine in wines 葡萄酒中酪胺和亚精胺的电化学研究及同步方波伏安法测定

IF 2.7 3区化学

Electroanalysis Pub Date : 2024-06-21 DOI: 10.1002/elan.202400073

Rossana O. Nóbrega, Luciano B. Ramo, Amanda C. Silva, Mario C. U. Araujo

{"title":"Electrochemical study and simultaneous square-wave voltammetric determination of tyramine and spermidine in wines","authors":"Rossana O. Nóbrega, Luciano B. Ramo, Amanda C. Silva, Mario C. U. Araujo","doi":"10.1002/elan.202400073","DOIUrl":"10.1002/elan.202400073","url":null,"abstract":"The quantification of tyramine (Tyr) and spermidine (Spd) is essential to protect and ensure quality and safety for food and beverage consumers. In this work, an electrochemical study was carried out, and a new, rapid, sensitive, reliable, and selective square-wave voltammetric method for simultaneously determining Tyr and Spd in wines was developed. A Chemically Modified Carbon Paste electrode with Zinc PhthaloCyanine (CMCPE-ZnPC) was used as a sensor in the electrochemical study, and a standard addition procedure (SAP) was employed to solve the matrix effect in the quantification of Tyr and Spd in wines. These analytes were electroactive on the stable, sensitive, and selective CMCPE-ZnPC sensor under study using SWV technique, displaying peak anodic potentials at around 400 mV for Tyr and 860 mV for Spd. Wine samples were analyzed using the proposed and reference methods. No statistically significant differences were observed among the results obtained for Tyr and Spd determinations, applying the paired t-test at a confidence level of 95 %. The proposed method yielded low limits of detection (6.8 nmol L−1 for Tyr and 10.8 nmol L−1 for Spd), good recovery rates (from 86.1 to 107.5 %), and reproducibility (overall RSD of 2.6 %). The proposed method contributes to green analytical chemistry since it uses no chemical pretreatment of the wine samples.","PeriodicalId":162,"journal":{"name":"Electroanalysis","volume":"36 11","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141528821","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

Erratum: Electro-elucidation and quantification of olopatadine hydrochloride in bulk form and eye drops using modification free glassy carbon electrode with its development by different electrolytes and surfactants 更正：使用无改性玻璃碳电极对散装和滴眼液中的盐酸奥洛他定进行电显色和定量分析，以及不同电解质和表面活性剂对其的影响

IF 3 3区化学

Electroanalysis Pub Date : 2024-06-14 DOI: 10.1002/elan.202480041

引用次数: 0

Cover Picture: (Electroanalysis 6/2024) 封面图片：（电解 6/2024）

IF 3 3区化学

Electroanalysis Pub Date : 2024-06-14 DOI: 10.1002/elan.202480601

引用次数: 0

Cover Picture: (Electroanalysis 6/2024) 封面图片：（电解 6/2024）

IF 3 3区化学

Electroanalysis Pub Date : 2024-06-14 DOI: 10.1002/elan.202480601

引用次数: 0

Erratum: Electro-elucidation and quantification of olopatadine hydrochloride in bulk form and eye drops using modification free glassy carbon electrode with its development by different electrolytes and surfactants 更正：使用无改性玻璃碳电极对散装和滴眼液中的盐酸奥洛他定进行电显色和定量分析，以及不同电解质和表面活性剂对其的影响

IF 3 3区化学

Electroanalysis Pub Date : 2024-06-14 DOI: 10.1002/elan.202480041

引用次数: 0

Pd nanoparticles supported on Fe3O4 particles grafted with poly(acrylamide) gel brush for simultaneous electrochemical-sensing of dopamine and paracetamol 聚丙烯酰胺凝胶刷接枝的 Fe 3 O 4 颗粒上支持的钯纳米粒子用于多巴胺和扑热息痛的同步电化学传感

IF 2.7 3区化学

Electroanalysis Pub Date : 2024-06-05 DOI: 10.1002/elan.202300374

Muhammet Güler, Adem Zengin

{"title":"Pd nanoparticles supported on Fe3O4 particles grafted with poly(acrylamide) gel brush for simultaneous electrochemical-sensing of dopamine and paracetamol","authors":"Muhammet Güler, Adem Zengin","doi":"10.1002/elan.202300374","DOIUrl":"10.1002/elan.202300374","url":null,"abstract":"In the present study, a glassy carbon electrode (GCE) modified with Pd nanoparticles deposited on poly(acrylamide) gel brush-grafted magnetic particles (Pd/PAAmGB@Fe3O4) with core-shell structure was fabricated for simultaneous electrochemical detection of dopamine (DA) and paracetamol (PA). Electrochemical performance of Pd/PAAmGB@Fe3O4/GCE was evaluated using cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and differential pulse voltammetry (DPV). The fabricated sensor exhibited voltammetric sensing with a satisfactory linear determination range from 0.4–41 μM for DA and from 0.5–95 μM for PA. The limit of detection (LOD) was 0.1 μM for DA and 0.17 μM for PA based on signal to noise ratio of 3. The proposed sensor also had excellent reusability and selectivity, good reproducibility and stability, and satisfactory recovery in biomedical examples. It is believed that metal nanoparticles deposited on polymer gel brush composites may offer promising new horizons for sensor growth.","PeriodicalId":162,"journal":{"name":"Electroanalysis","volume":"36 9","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/elan.202300374","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141384252","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

A voltammetrically potentionmetric pH sensor based on multiply hydroxylated porphyrin 基于多重羟基卟啉的伏安电位计 pH 传感器

IF 2.7 3区化学

Electroanalysis Pub Date : 2024-06-04 DOI: 10.1002/elan.202400162

Fan Lin, Ying Xu, Xueni Li, Yilin Wang, Yulu Ru, Dandan Wang, Xiaoshun Zhou, Yong Shao

{"title":"A voltammetrically potentionmetric pH sensor based on multiply hydroxylated porphyrin","authors":"Fan Lin, Ying Xu, Xueni Li, Yilin Wang, Yulu Ru, Dandan Wang, Xiaoshun Zhou, Yong Shao","doi":"10.1002/elan.202400162","DOIUrl":"10.1002/elan.202400162","url":null,"abstract":"Using voltammetry to readout potentiometrically the solution acidity requires easy pH tunability of the probe's redox properties. In this work, tri-hydroxyphenyl porphyrin (POH3) was synthesized as the electrochemically active probe to develop a voltammetrically potentiometric sensor (VPS) with a pH-sensitive response. By comparing POH3 with control di- and mono-hydroxyphenyl porphyrins (POH2 and POH1), we found that protonation of the pyrrole macrocycle, electron communication of the para-hydroxyl groups with the pyrrole nitrogens during structure tautomerization, and the presence of multiple ionizable hydroxyl groups are the critical factors to report reversibly the pH-sensitive VPS response at the appropriate potential range. Common metal ions have negligible effects on the sensor performance. In comparison to the conventional potentiometric sensor (CPS), our VPS strategy benefits from the advantage that the electrode modification is not required. Thus, the complex phase boundary models necessary for CPS are unnecessarily involved in explaining the potential response.","PeriodicalId":162,"journal":{"name":"Electroanalysis","volume":"36 9","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141387029","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