Article
Chemistry, Analytical
Reyhan Dincer, Sukriye Ulubay Karabiberoglu, Zekerya Dursun
Summary: This study proposes a dependable approach for the selective and sensitive identification of zinc, cadmium and lead in different sample matrices using an over-oxidized poly(xylenol blue) film glassy carbon electrode coated with bismuth (Bi/PXBov.ox/GCE). The best conditions for determining these elements were found to be a 0.1 mol L-1 acetate buffer solution as supporting electrolyte (pH 4.5), -1.5 V accumulation potential, and 180 s accumulation duration. Under these conditions, the detection limits of Zn(II), Cd(II) and Pb(II) were 3.20 μg L-1, 0.21 μg L-1 and 1.98 μg L-1, respectively. Moreover, this novel, cheap and easy-to-prepare Bi/PXBov.ox/GCE was successfully used for the analysis of Zn(II), Cd(II) and Pb(II) in lipstick samples, with consistent results compared to inductively coupled plasma mass spectrometry.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Analytical
Ceren Yildiz, Dilek Eskikoy Bayraktepe, Zehra Yazan, Muserref Onal
Summary: This study presents a electrochemical sensor based on pencil graphite electrode and its application in the quantification of heavy metals. The sensor has a high conductive surface area, capable of producing high signals, making it more suitable for electrochemical analysis compared to unmodified electrodes.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Wen-Juan Wang, Xin-Yang Lu, Fen-Ying Kong, Heng-Ye Li, Zhong-Xia Wang, Wei Wang
Summary: In this study, rGO/Au-Bi nanocomposites were successfully synthesized and used for simultaneous electrochemical determination of Pb2+ and Cd2+. The results showed that under optimized conditions, the proposed electrode exhibited good linearity and low detection limits for Pb2+ and Cd2+. The electrode also demonstrated excellent resistance to interference, high stability, and good repeatability.
MICROCHEMICAL JOURNAL
(2022)
Article
Nanoscience & Nanotechnology
Qiuyu Yang, Xiuli Sun, Yichao Sun, Xiaofang Shen, Yuehong Pang
Summary: An electrochemical sensor, Bi-BDC-NH2@NMCS, was developed by combining an amino-functionalized bismuth metal-organic framework (Bi-BDC-NH2) with nitrogen-doped mesoporous carbon nanosphere (NMCS), enabling simultaneous determination of Pb(II) and Cd(II). The Bi-BDC-NH2@NMCS electrode exhibited improved charge transfer, stability, and conductivity compared to the traditional bismuth film electrode. The method demonstrated excellent stripping performance with low detection limits and a wide linear range, and was successfully applied to the detection of Pb(II) and Cd(II) in liver, fish, and shrimp samples with high recoveries.
ACS APPLIED NANO MATERIALS
(2023)
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
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
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
Yijing Ai, Lisi Wang, Wanting Fu, Xiang Ye, Juan Zhou, Xiaoping Zhang, Shuhai He, Wei Sun
Summary: In this paper, a graphdiyne (GDY)-modified glassy carbon electrode was prepared and used for the sensitive and simultaneous detection of Zn2+, Cd2+ and Hg2+ heavy metal ions. The GDY-modified electrode provided a larger surface area and more active sites for the absorption of metal ions. By codeposition with Bi3+, the heavy metal ions were pre-concentrated on the GDY-modified electrode surface, resulting in high sensitivity and selectivity during stripping analysis. The detection ranges and limits for Zn2+, Cd2+ and Hg2+ were determined using differential pulse anodic stripping voltammetry.
Article
Chemistry, Analytical
Antonella de las M. Biasi, Eduardo A. Takara, Maria L. Scala-Benuzzi, Agustina M. Valverde, Nidia N. Gomez, German A. Messina
Summary: Currently, there is a demand for fast and sensitive methods to monitor metals in water due to their increasing presence in the environment. This study evaluated different polymeric nanocomposites for the simultaneous electrochemical determination of Cu, Cd, and Zn in water samples. Screen-printed carbon electrodes were modified with nanocomposites containing graphene, graphite oxide, and polymers like polyethyleneimide, gelatin, and chitosan. The modified electrodes showed excellent performance for detecting metal ions in water samples using square-wave anodic stripping voltammetry.
ANALYTICA CHIMICA ACTA
(2023)
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, 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
Hui Li, Jie Zhao, Shifan Zhao, Guofeng Cui
Summary: A novel three-electrode sensor was developed for simultaneous detection of Pb(II), Cd(II), and Zn(II) by depositing a bismuth film on a screen-printed gold working electrode. The sensor showed a wide linear range, low detection limits, good anti-interference ability, and stability. Such sensors are expected to be useful for portable heavy metal detection applications.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Analytical
Mehdi Baghayeri, Amirhassan Amiri, Fatemeh Karimabadi, Sabrina Di Masi, Behrooz Maleki, Fatemeh Adibian, Ali Reza Pourali, Cosimino Malitesta
Summary: This study presents the novel synthesis, characterisation, and application of magnetic multi-walled carbon nanotubes modified with polyamidoamine dendrimers as a highly sensitive and selective recognition element in sensor development for the electrochemical determination of As(III) in water matrices. The developed sensor showed high sensitivity and selectivity against possible interferents, with a limit of detection of 0.46 μg/L. Its suitability in spiked water samples was also discussed.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Sandra Enn D. Bahinting, Analiza P. Rollon, Sergi Garcia-Segura, Vince Carlo C. Garcia, Benny Marie B. Ensano, Ralf Ruffel M. Abarca, Jurng-Jae Yee, Mark Daniel G. de Luna
Summary: This study utilized BF-UMEA for the detection of Pb(II) and Cd(II), showing its potential application in trace water quality control.
Article
Chemistry, Analytical
David J. Arnot, Timothy N. Lambert
Summary: Anodic stripping voltammetry (ASV) is used for detecting heavy metal ions, with the addition of Pb shown to improve sensitivity and precision in highly alkaline solution. The study demonstrates the importance of restricting Bi(OH)(4)(-) diffusion in alkaline battery chemistry for improved performance. ASV is utilized to determine Bi(OH)(4)(-) diffusion rates through different separators, showing consistent results with existing separator structures.
Article
Chemistry, Inorganic & Nuclear
Hui-Hui Cui, Wei Lv, Wei Tong, Xue-Tai Chen, Zi-Ling Xue
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2019)
Article
Chemistry, Inorganic & Nuclear
Duncan H. Moseley, Shelby E. Stavretis, Zhenhua Zhu, Mei Guo, Craig M. Brown, Mykhaylo Ozerov, Yongqiang Cheng, Luke L. Daemen, Rachael Richardson, Gary Knight, Komalavalli Thirunavukkuarasu, Anibal J. Ramirez-Cuesta, Jinkui Tang, Zi-Ling Xue
INORGANIC CHEMISTRY
(2020)
Article
Chemistry, Inorganic & Nuclear
Alexandria N. Bone, Shelby E. Stavretis, J. Krzystek, Zhiming Liu, Qiang Chen, Zheng Gai, Xiaoping Wang, Carlos A. Steren, Xian B. Powers, Andrey A. Podlesnyak, Xue-Tai Chen, Joshua Telser, Haidong Zhou, Zi-Ling Xue
Article
Physics, Atomic, Molecular & Chemical
Pagnareach Tin, Shelby E. Stavretis, Mykhaylo Ozerov, J. Krzystek, A. N. Ponomaryov, S. A. Zvyagin, J. Wosnitza, Ching-Chin Chen, Peter P. -Y. Chen, Joshua Telser, Zi-Ling Xue
APPLIED MAGNETIC RESONANCE
(2020)
Article
Chemistry, Multidisciplinary
Alexandria N. Bone, Chelsea N. Widener, Duncan H. Moseley, Zhiming Liu, Zhengguang Lu, Yongqiang Cheng, Luke L. Daemen, Mykhaylo Ozerov, Joshua Telser, Komalavalli Thirunavukkuarasu, Dmitry Smirnov, Samuel M. Greer, Stephen Hill, J. Krzystek, Karsten Holldack, Azar Aliabadi, Alexander Schnegg, Kim R. Dunbar, Zi-Ling Xue
Summary: The study explores the dynamics of magnetic and phonon excitations in metal complexes, revealing rarely observed spin-phonon coupling through far-IR magnetic spectra analysis. Understanding such couplings may provide guidance in controlling magnetic relaxation in single-molecule magnets.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Physical
Pagnareach Tin, Alexandria N. Bone, Nhat N. Bui, Yi-Quan Zhang, Tieyan Chang, Duncan H. Moseley, Mykhaylo Ozerov, J. Krzystek, Yongqiang Cheng, Luke L. Daemen, Xiaoping Wang, Likai Song, Yu-Sheng Chen, Dong Shao, Xin-Yi Wang, Xue-Tai Chen, Zi-Ling Xue
Summary: This study investigates the magnetic and phonon properties of a two-dimensional coordination polymer Co-TODA using advanced spectroscopies and computations. The results show that Co-TODA exhibits easy-plane magnetic anisotropy. The study provides a comprehensive understanding of the magnetic properties and phonon characteristics of this coordination polymer.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Inorganic & Nuclear
Duncan H. Moseley, Zhiming Liu, Alexandria N. Bone, Shelby E. Stavretis, Saurabh Kumar Singh, Mihail Atanasov, Zhengguang Lu, Mykhaylo Ozerov, Komalavalli Thirunavukkuarasu, Yongqiang Cheng, Luke L. Daemen, Daphne Lubert-Perquel Laboratory, Dmitry Smirnov, Frank Neese, A. J. Ramirez-Cuesta, Stephen Hill, Kim R. Dunbar, Zi-Ling Xue
Summary: A comprehensive investigation of magnetic excitations in the single-molecule magnet Co(AsPh3)2I2 was conducted using inelastic neutron scattering, far-IR magneto-spectroscopy, and Raman magneto-spectroscopy. The results accurately determined the magnetic excited level and the interaction between magnetic excitation and phonon modes.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Adam T. Hand, Adam C. Lamb, Michael G. Richmond, Xiaoping Wang, Carlos A. Steren, Zi-Ling Xue
Summary: The chemistries of Nb(V) and Ta(V) compounds are essentially identical due to lanthanide contraction. The reactions with water reveal different principal paths for the niobium and tantalum analogues, leading to the formation of two different complexes that maintain the (V) oxidation state in both metals.
INORGANIC CHEMISTRY
(2022)
Article
Multidisciplinary Sciences
Pagnareach Tin, Michael J. Jenkins, Jie Xing, Nils Caci, Zheng Gai, Rongyin Jin, Stefan Wessel, J. Krzystek, Cheng Li, Luke L. Daemen, Yongqiang Cheng, Zi-Ling Xue
Summary: This study demonstrates that NiBO is a rare two-dimensional metal-organic framework (MOF) Haldane topological material with potential quantum applications.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Wei Lv, Lei Chen, Xue-Tai Chen, Hong Yan, Zhenxing Wang, Zhong-Wen Ouyang, Zi-Ling Xue
Summary: Two seven-coordinate Co(II)-nitrate complexes, [Co(tmpdc)(NO3)(2)] (1) and [Co(tmpdt)(NO3)(2)]center dot CH3CN (2), with tridentate neutral ligands tmpdc or tmpdt have been synthesized. Single X-ray diffraction reveals that the coordination geometries of the two complexes are significantly different when the two donor atoms of the tridentate ligand change from oxygen to sulfur. Complex 1 is a capped octahedral while complex 2 is a pentagonal bipyramid. Magnetic measurements and electron paramagnetic resonance indicate the anisotropic S = 3/2 spin ground state of the Co(II) ions with easy-plane anisotropy for both complexes. Frequency- and temperature-dependent magnetic susceptibility studies show slow magnetic relaxation for both complexes under applied fields.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Wei Lv, Hui-Hui Cui, Lei Chen, Yi-Quan Zhang, Xue-Tai Chen, Zhenxing Wang, Zhong-Wen Ouyang, Zi-Ling Xue
Summary: Recently, the influence of ligand choice and geometric control on the magnetic properties of mononuclear Co(II) complexes has been studied. The results show that the coordination environment plays a significant role in the magnetic relaxation behavior of the complexes.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Multidisciplinary
Shu-Yang Chen, Wei Lv, Hui-Hui Cui, Lei Chen, Yi-Quan Zhang, Xue-Tai Chen, Zhenxing Wang, Zhong-Wen Ouyang, Hong Yan, Zi-Ling Xue
Summary: Three mononuclear tetrakis(pseudohalido)-cobalt(ii) complexes have been synthesized and characterized, showing different magnetic anisotropy properties. The analysis of magnetic properties using various spectroscopic techniques confirms that these complexes are field-induced single-ion magnets.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Hui-Hui Cui, Man-Man Ding, Xiu-Du Zhang, Wei Lv, Yi-Quan Zhang, Xue-Tai Chen, Zhenxing Wang, Zhong-Wen Ouyang, Zi-Ling Xue
DALTON TRANSACTIONS
(2020)
Article
Environmental Sciences
Peter T. Pham, Roberto A. Federico-Perez, Kevin L. Fine, Laura W. Matzek, Kimberly E. Carter, Angelica M. Palomino, Zi-Ling Xue
Article
Chemistry, Inorganic & Nuclear
Hui-Hui Cui, Yi-Quan Zhang, Xue-Tai Chen, Zhenxing Wang, Zi-Ling Xue
DALTON TRANSACTIONS
(2019)