Article
Chemistry, Analytical
Shi-Hua Chen, Zong-Yin Song, Xiang-Yu Xiao, Hong-Qi Huang, Yuan-Fan Yang, Pei-Hua Li, Meng Yang, Xing-Jiu Huang
Summary: Vacancy and doping engineering were used to improve the electrocatalytic ability of nanomaterials for detecting heavy metal ions. The P-doped material showed enhanced sensitivity and selectivity towards As(III), and the vacancies provided abundant electrons to form active centers.
ANALYTICAL CHEMISTRY
(2022)
Article
Engineering, Environmental
Ruihua Huang, Jiapei Lv, Jianbing Chen, Yeling Zhu, Jian Zhu, Thomas Wagberg, Guangzhi Hu
Summary: This study proposes a boron and nitrogen co-doped carbon material derived from a metal-organic framework material for the detection of heavy metal ions in food. The sensor shows good sensitivity and selectivity for Cd(II) and Pb(II), and has potential applications in complex samples.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Chemistry, Analytical
Ning Liu, Guo Zhao, Gang Liu
Summary: This study introduces a new method to detect Cd(II) and Pb(II) using feature stripping currents, which shows better anti-interference capability and detection accuracy. Models established using SVR and the partial least square algorithms demonstrate superior detection performance.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Ruihua Huang, Ke Zhang, Haowei Sun, Dafeng Zhang, Jian Zhu, Shuxing Zhou, Wenyan Li, Yongtao Li, Chunqiong Wang, Xiuxiu Jia, Thomas Wagberg, Guangzhi Hu
Summary: In this study, cetyltrimethylammonium bromide and zeolitic imidazolate framework-8 (ZIF-8) were assembled via chemical co-precipitation, and high-quality carbon-based metal-free nanomaterials were synthesized using heat treatment. The internal and morphological characteristics of hexagonal Star ZIF-8 were investigated. An electrochemical sensor with a good response to Cd(II) was prepared using Star ZIF-8 nanomaterial-modified electrodes. The sensitivity of the sensor was increased by five orders of magnitude.
ANALYTICA CHIMICA ACTA
(2022)
Article
Chemistry, Analytical
Silvina Kergaravat, Natali Romero, Luciana Regaldo, Guillermo R. Castro, Silvia R. Hernandez, Ana Maria Gagneten
Summary: This research aimed to develop an electrochemical method for detecting CIP, AgNPs, and their mixtures and correlating them with ecotoxicological effects in aquatic organisms. The study found that AgNPs had the highest toxicity on C. dubia, followed by the CIP-AgNP mixture and then CIP alone. The stability of CIP and Ag(I) from AgNPs was evaluated, showing potential applications for environmental monitoring and highlighting the importance of electrochemical and ecotoxicology approaches in preserving environmental health.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Analytical
Gul Sirin Ustabasi, Ismail Yilmaz, Mustafa Ozcan, Ebru Cetinkaya
Summary: Pencil graphite electrode modified with MWCNT and Bi3+ showed improved sensitivity and reduced charge transfer resistance in the simultaneous analysis of Pb2+, Cd2+, and Zn2+. This modification method offers effective electroanalytical performance with low time consumption and cost.
Article
Chemistry, Applied
Fabiana Liendo, Amaya Paz de la Vega, Maria Jesus Aguirre, Fernando Godoy, Angel A. Marti, Erick Flores, Jaime Pizarro, Rodrigo Segura
Summary: A glassy carbon modified electrode with electroreduced graphene oxide was developed for the determination of Antimony (III) in commercial lettuce, celery, and beverages. The electrode surface was heterogeneous and rough, with a real area larger than a regular glassy carbon electrode. By using optimal chemical and electrochemical parameters, satisfactory results in terms of accuracy and reproducibility were obtained.
Article
Chemistry, Analytical
Manjunatha K. S. Kumara, D. H. Nagaraju, Zhoveta Yhobu, Nayan H. N. Kumar, Srinivasa Budagumpi, Shubhankar Kumar Bose, P. Shivakumar, Venkata Narayana Palakollu
Summary: In this study, researchers functionalized inexpensive and environmentally friendly Fe3O4 nanoparticles with D-valine using a co-precipitation synthetic approach. The resulting Fe3O4-D-Val sensor exhibited ultra-sensitive detection of Cd+2, Pb+2, and Cu+2 in water samples, with detection limits much lower than those suggested by the World Health Organization.
Article
Chemistry, Analytical
Aymara da Silva Santos, Carolina Zeni Pires Mecca, Tiago Luiz Ferreira, Fabio Ruiz Simoes, Lucia Codognoto, Eliana Maira Agostini Valle
Summary: The interaction between the pesticide carbendazim and the metal ion Pb2+ was studied using electrochemical techniques. The presence of Pb2+ affected the electrochemical signal of carbendazim, indicating complex formation. The electroanalytical method was found to be feasible for the analysis of carbendazim in the presence of Pb2+.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Mohammad Reza Jalali Sarvestani, Tayyebeh Madrakian, Abbas Afkhami
Summary: In this study, a highly sensitive electrochemical sensor was developed for the detection of ultra-trace levels of Pb2+. The sensor was modified with an in-situ electroplated bismuth film and a nanocomposite of a recently synthesized melamine based covalent organic framework and Fe3O4 nanoparticles. The combination of Fe3O4@SNW1 and the bismuth film significantly enhanced the sensitivity of the sensor towards Pb2+. The optimized sensor showed a linear response in the concentration range of 0.003-0.3 μmol L-1 with a detection limit of 0.95 nmol L-1. The sensor demonstrated good selectivity towards Pb2+ and was successfully applied for the determination of Pb2+ in different edible specimens.
Article
Chemistry, Analytical
Artur Huseinov, Abdul Hoque, Kyle A. Ruble, Brandon J. Dee, Noe T. Alvarez
Summary: This study presents a reagentless sample preparation method for the detection of particulate Pb contaminants in tap water using membrane electrolysis. The membrane electrolysis allows for the in-situ generation of nitric acid, which, when combined with anodic stripping voltammetry, provides a powerful and reagent-free detection of Pb2+. The setup configuration enables semi-autonomous operation and requires minimal attention, making it more suitable for continuous measurements of particulate contaminants in tap water.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Wan-Fang Lin, Wen-Ying Zhai, Yun Yan, You-Qin Liu
Summary: A rod-like poly-tyrosine membrane modified glassy carbon electrode (p-Tyr/GC) and a Bi/p-Tyr/GC composite electrode were prepared and optimized for Pb2+ detection. The Bi/p-Tyr/GC electrode showed high sensitivity and wide linear range for Pb determination in preserved duck eggs, with successful elimination of Cu2+ interference. The developed electrochemical method has high selectivity and broad application potential for heavy metal ion sensors in complex samples.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Analytical
Mona Elfiky, Nehal Salahuddin
Summary: The development of a three-dimensional mesoporous nanorods sensor for NO2- detection was achieved through the synthesis of peeled montmorillonite/TiO2-ZnO hybrid materials. The inclusion of different amounts of MMT in the synthesis process resulted in varying structural and surface area properties of the materials. The sensor with 1.0% MMT exhibited the most structured morphology and best surface area, showing remarkable electrocatalytic activity for NO2- detection.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Analytical
Kequan Xu, Clara Perez-Rafols, Amine Marchoud, Maria Cuartero, Gaston A. Crespo
Summary: The use of HMDE for multi-ion analysis offers unique advantages such as good reproducibility and superior detection performance, but its continued usage is questioned due to the high toxicity of mercury. Research has demonstrated the HMDE's ability to rapidly and accurately analyze multiple metal ions in complex matrices. Further efforts are needed to definitively replace the HMDE in electroanalysis despite elegant alternatives proposed in the literature.
Article
Materials Science, Multidisciplinary
Salah Eddine Berrabah, Abdelkader Benchettara, Fatiha Smaili, Sabrina Tabti, Abdelhakim Benchettara
Summary: A novel inexpensive and easy electrochemical sensor based on carbon graphite electrode (Gr) modified with zinc hydroxide has been developed for the determination of trace levels of copper. The proposed method showed high sensitivity, low detection limit, good repeatability, and minimal interference from other ionic species. The method was validated using different brands of local source water and showed satisfactory results.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Analytical
Maryam Rezazadeh, Yadollah Yamini, Shahram Seidi, Ali Aghaei
Article
Electrochemistry
Mohammad Ali Kamyabi, Ali Aghaei
ELECTROCHIMICA ACTA
(2016)
Article
Chemistry, Applied
Mohammad Ali Kamyabi, Ali Aghaei
Article
Spectroscopy
Mohammad Ali Kamyabi, Ali Aghaei
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2017)
Article
Electrochemistry
Ali Aghaei, Mohammad Reza Milani Hosseini, Mostafa Najafi
ELECTROCHIMICA ACTA
(2010)
Article
Chemistry, Analytical
Ali Aghaei, Mehdi Erfani Jazi, Todd E. Mlsna, Mohammad Ali Kamyabi
JOURNAL OF SEPARATION SCIENCE
(2019)
Review
Multidisciplinary Sciences
Mehdi Erfani Jazi, Ganesh Narayanan, Fatemeh Aghabozorgi, Behzad Farajidizaji, Ali Aghaei, Mohammad Ali Kamyabi, Chanaka M. Navarathna, Todd E. Mlsna
SN APPLIED SCIENCES
(2019)