Article
Chemistry, Analytical
Michelle Buoso, Beatrice Campanella, Massimo Onor, Emanuela Pitzalis, Alessandro D'Ulivo
Summary: The use of BH intermediates as derivatization reagents significantly improves the tolerance to interference from transition metal ions in the generation of SbH3 and BiH3, and shows high tolerance in a wide range of acidity. The method has been successfully applied to the determination of Sb and Bi in complex samples, providing further understanding of the chemical behavior of borohydrides.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2024)
Article
Chemistry, Analytical
Lucila Brusa, Mabel Tudino, Jonatan Schlotthauer, Mirna Sigrist
Summary: A method based on flow injection hydride generation atomic absorption spectrometry (FI-HGAAS) with an on-line pre-reduction of Se(VI) to Se(IV) was optimized and developed to determine phosphate-extractable Se. The method can eliminate interferences caused by organic matter and provide comparable results to ICP-MS.
Article
Chemistry, Analytical
Ignacio Lopez-Garcia, Maria J. Munoz-Sandoval, Manuel Hernandez-Cordoba
Summary: A magnetic dispersive micro-solid phase extraction method for determining thallium content in water is introduced, which allows the complete retention of both thallium(I) and thallium(III) through a series of steps. The method has a high enrichment factor and low detection limit, and its reliability is confirmed through the analysis of certified reference samples.
Article
Chemistry, Analytical
Tao Lin, Jing Hu, Yujia Deng, Wen Zeng, Xiaoming Jiang, Xiandeng Hou
Summary: A miniaturized atomic absorption spectrometer (AAS) was proposed with a planar dielectric barrier discharge (DBD) microplasma as an atomizer, a charge coupled device (CCD) spectrometer as a spectral detector, and a hydride generation (HG) unit as a sampler. The method showed excellent analytical capability and enhancement effect in the determination of cadmium.
ANALYTICA CHIMICA ACTA
(2022)
Article
Engineering, Chemical
Katarzyna Jaworek, Marianna Czaplicka
Summary: This publication presents the limitations of using a standardized method for determining total arsenic in water samples with various organoarsenic compounds. The study focuses on aqueous solutions of different organoarsenic compounds, such as dimethylarsinic acid, phenylarsonic acid, and p-arsanilic acid, as well as their mixtures. It was found that the percentage arsenic concentration determined by hydride generation atomic absorption spectrometry depends on the structure of the organoarsenic compound. Determining the presence of arsenic in water samples containing different inorganic and organic forms of arsenic species using the hydride generation method is challenging.
DESALINATION AND WATER TREATMENT
(2022)
Article
Chemistry, Analytical
Siyu Gu, Xudong Huang, Mingli Chen, Jixin Liu, Xuefei Mao, Xing Na, Guoying Chen, Yunbin Shao
Summary: A novel IDBD reactor coupled with ETV was established for arsenic determination, investigating the evolution mechanisms of arsenic species using XPS. DBDA atomizes arsenic nanoparticles while DBDT traps and releases arsenic oxides, enhancing sensitivity and precision in seafood sample analysis. The method shows potential for rapid arsenic analysis based on direct solid sampling ETV instrumentation.
ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Liangbo He, Yao Lin, Yubin Su, Yuanyuan Li, Yurong Deng, Chengbin Zheng
Summary: In this study, a lithium-ion battery powered compact handheld optical emission spectrometer (OES) was developed for sensitive field analysis of waterborne arsenic. By utilizing electro-chemical hydride generation (ECHG) and miniaturized ballpoint discharge (mu PD) as sample introduction means and excitation source, the system showed promising potential for the sensitive, cost-effective, and environmentally friendly analysis of waterborne arsenic.
ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Jaromir Vyhnanovsky, Dilek Yildiz, Barbora Stadlerova, Stanislav Musil
Summary: The study achieved photochemical vapor generation of bismuth with optimal conditions determined through investigating the influence of sensitizers and reaction medium flow rate. Combining PVG with atomic fluorescence spectrometry can provide low limits of detection at a low operation cost.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Analytical
Yuheng Lu, Wen Zeng, Jing Hu, Xiandeng Hou
Summary: In this study, Zr-based metal organic frameworks (UiO-66) were used for selective extraction of trace bismuth from water samples and digests of iron alloy. After simple centrifugation separation, the Bi(III)-adsorbed UiO-66 was analyzed by atomic fluorescence spectrometry (HG-AFS) through direct slurry sampling and in-situ hydride generation. The method demonstrated high selectivity for bismuth and resistance to interference from transition metals, enabling reliable determination of trace bismuth in high-purity iron alloy, seawater, and river water samples.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Analytical
Dilek Yildiz, Muhammet Atasoy, Ahmet Demirak
Summary: A method for determination of ultra-trace arsenic (III) using in-situ trapping and revolatilization techniques on a Pt-coated W-coil atom trap was reported. Multiple experimental conditions were optimized, and the accuracy of the method was validated using certified reference materials. Coating the surface of the W-coil trap with Pt ensures sensitivity for at least 350 atomization cycles.
ANALYTICAL LETTERS
(2022)
Article
Chemistry, Analytical
Yujia Deng, Kai Li, Xiandeng Hou, Xiaoming Jiang
Summary: The developed method utilizes a miniaturized dielectric barrier discharge microplasma atomic emission spectrometer coupled with a tungsten coil (W-coil) for on-line hydride generation trapping-electrothermal vaporization, resulting in fast, low-cost, and sensitive determination of trace cadmium. By adopting a horizontally fixed W-coil and flow injection mode, the total sample throughput can be greatly improved.
Article
Environmental Sciences
Krzysztof Kleszcz, Iwona Karon, Pawel Zagrodzki, Pawel Pasko
Summary: Analysis of 52 coal ash samples from individual households revealed correlations between the concentrations of studied elements, pH and coal grades. The maximum concentrations of arsenic, cadmium, lead and thallium in the ash samples were 50,900, 43,500, 128,900, and 6660 μg/kg, respectively. The results were compared with published data for industrial ash.
JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT
(2021)
Article
Engineering, Multidisciplinary
Miray Bombom, Buse Tugba Zaman, Gamze Dalgic Bozyigit, Meltem Saylan, Ahsen Bayraktar, Busra Arvas, Cigdem Yolacan, Sezgin Bakirdere
Summary: An on-line preconcentration system was developed for the quantitative determination of thallium in well water samples using hydrogen-assisted T-cut slotted quartz tube atom trapping (HA-T-SQT-AT) coupled to flame atomic absorption spectrometry (FAAS). The thallium atoms were trapped on the inner surface of the T-SQT using sample aspiration and lean flame conditions, and then released by hydrogen gas as a reducing agent, resulting in a sharp and narrow signal. The optimized method showed a linear range of 7.5-200 ng/mL and LOD/LOQ values of 2.6/8.7 ng/mL. Accuracy and practicability were confirmed using well water samples with percent recoveries above 80%.
Article
Chemistry, Multidisciplinary
Muhammet Atasoy, Dilek Yildiz, Ibrahim Kula
Summary: In this study, hydride generation atomic absorption spectrometry was used to determine selenium in various water samples. The optimal values of various parameters were determined, and the method showed high accuracy and reliability.
JOURNAL OF THE INDIAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Applied
Joanna Dobrzynska, Rafal Olchowski, Emil Zieba, Ryszard Dobrowolski
Summary: A hybrid Zr/amine-modified mesoporous silica sorbent was proposed for preconcentration of inorganic As from drinking water before FI HG AAS determination. Different sorbents were synthesized and characterized, with SBA/TMPED/Zr-0.5 chosen for its effective adsorption capacity. The method showed good linearity, low detection limits, and high recovery rates for arsenic from water samples.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Electrochemistry
Fahimeh Afzali, Gholamhossein Rounaghi, Mohammad Hossein Arbab Zavar, Narges Ashraf
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2016)
Article
Electrochemistry
Fahimeh Afzali, Mohammad Hossein Arbab Zavar, Gholamhossein Rounaghi, Narges Ashraf
ELECTROCHIMICA ACTA
(2016)
Article
Chemistry, Analytical
Mehrnoush Ghanbari, Gholam Hossein Rounaghi, Narges Ashraf
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2017)
Article
Chemistry, Analytical
Alireza Shams, Narges Ashraf, Mohammad Hossein Arbab-Zavar, Mahboubeh Masrournia
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2017)
Article
Chemistry, Inorganic & Nuclear
Mehrnoush Ghanbari, Gholam Hossein Rounaghi, Narges Ashraf, Masoomeh Paydar, Iman Razavipanah, Mahdi Karimi-Nazarabad
JOURNAL OF CLUSTER SCIENCE
(2017)
Article
Chemistry, Multidisciplinary
Seyyed Ahmad Rezvani Ivari, Abolfazl Darroudi, Mohammad Hossein Arbab Zavar, Gholamhosein Zohuri, Narges Ashraf
ARABIAN JOURNAL OF CHEMISTRY
(2017)
Article
Chemistry, Analytical
Farzaneh Nasiri, Gholam Hossein Rounaghi, Narges Ashraf, Behjat Deiminiat
Summary: This paper presents a simple method for determining diclofenac using a gold electrode modified with f-MWCNTs/GO nanocomposite film and AuNPs. The sensor displayed excellent catalytic activity towards diclofenac oxidation, with linear detection ranges and a low detection limit. The modified electrode successfully quantified diclofenac in various samples with high recoveries.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Alireza Kardan, Narges Ashraf, Zeynab Dabirifar, Sara Khadempir
Summary: In situ electrochemical activation is an effective method for enhancing electrocatalytic performances, as demonstrated by the green synthesis of Au/Pd nanoparticles using polyoxometalate (POM). The structural analysis of the Au/Pd nanohybrid reveals a core/shell structure surrounded by POM, leading to significant improvements in electrocatalytic activity.
Article
Chemistry, Physical
Reihaneh Hashemniaye-Torshizi, Narges Ashraf, Mohammad Hossein Arbab-Zavar, Somayeh Dianat
Summary: A low-cost route for fabricating a highly efficient and durable electrode based on platinum nanoparticles, SiW11O39Co, and carbon nanoparticles for the electrolytic hydrogen evolution reaction has been introduced. The electrode showed favorable electrocatalytic activity towards the HER with a low onset potential, small Tafel slope, and long-term stability.
CATALYSIS SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Ali Ahmadpour, Sara Khadempir, Narges Ashraf, Scott G. Mitchell, Mahdi H. Ahangari
Article
Electrochemistry
Elaheh Hatami, Narges Ashraf, Mohammad Hossein Arbab-Zavar
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2019)
Article
Chemistry, Analytical
Alireza Shams, Narges Ashraf, Mohammad Hossein Arbab-Zavar, Mahboubeh Masrournia
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2019)
Article
Chemistry, Multidisciplinary
Reihaneh Hashemniaye-Torshizi, Narges Ashraf, Mohammad Hossein Arbab-Zavar, Somayeh Dianat
NEW JOURNAL OF CHEMISTRY
(2019)
Article
Chemistry, Multidisciplinary
H. Sarvari, E. K. Goharshadi, S. Samiee, N. Ashraf
PHYSICAL CHEMISTRY RESEARCH
(2018)
Article
Chemistry, Multidisciplinary
M. Farhangi, M. R. Housaindokht, N. Ashraf, H. Monhemi, Z. Rouhbakhsh Zaeri
PHYSICAL CHEMISTRY RESEARCH
(2017)
Article
Chemistry, Analytical
Qian Wu, Li Tian, Xiangyu Shan, Huiling Li, Chao Li, Juan Lu
Summary: A novel ECL sensor was developed by modifying Fe3CuO4-Ru(bpy)3+ and GO-CdS@ZnS on the electrode for the detection of permethrin. The sensor exhibited high sensitivity and a wide detection range.
Article
Chemistry, Analytical
Tingting Gong, Lei Liao, Bingying Jiang, Ruo Yuan, Yun Xiang
Summary: In this study, a fluorescent biosensing system for high sensitivity detection of MT was established using a new Ag+-stabilized DNA triplex probe (Ag+-SDTP) combined with catalytic hairpin assembly (CHA) and CRISPR/Cas12a signal enhancements. The sensing method is able to selectively detect MT from other non-specific molecules and can achieve low level detection of MT in diluted human serums, demonstrating its potential for monitoring disease-specific MT biomarker at trace levels.
Article
Chemistry, Analytical
Estrella Sanz Rodriguez, Kyra Wood, Paul R. Haddad, Brett Paull
Summary: This study presents a simple, rapid, and reliable method for determining boron in aqueous solutions using suppressed ion chromatography coupled to electrospray ionisation-triple quadrupole mass spectrometry. The method achieved a low limit of detection and demonstrated excellent analytical performance.
Article
Chemistry, Analytical
Aline Cournut, Paul Moustiez, Yannick Coffinier, Christine Enjalbal, Claudia Bich
Summary: Alzheimer's disease is a major cause of senile dementia and is characterized by the aggregation of neurofibrillary tangles and amyloid plaques in the brain. The A beta 1-42 peptide is considered the primary cause of neurotoxicity due to its insolubility and subsequent aggregation. A beta 1-42 and A beta 1-40 have been identified as relevant biomarkers for AD diagnosis, and SurfaceAssisted Laser Desorption/Ionization Mass Spectrometry (SALDI-MS) was used to monitor the A beta 1-42/A beta 1-40 ratio without prior sample treatment.
Article
Chemistry, Analytical
Dotse Selali Chormey, Buse Tugba Zaman, Tulay Borahan Kustanto, Sezin Erarpat Bodur, Suleyman Bodur, Elif Ozturk Er, Sezgin Bakirdere
Summary: This review provides an overview of the harmful effects of endocrine disrupting chemicals (EDCs) on human health and introduces the methods for analyzing EDCs. Recent research has focused on using green chemicals, such as deep eutectic solvents (DESs), for microextraction to ensure environmental safety.
Article
Chemistry, Analytical
Yan Zhang, Renfeng Xu, Jingjing Wu, Zhenghong Zhang, Yuhuang Wang, Hongqin Yang, Sheng Zhang
Summary: This study visualized the pore-like structures in prostate cancer cell membranes after treatment with the anticancer drug paclitaxel, demonstrating its mechanism of action related to oxidative damage.
Article
Chemistry, Analytical
Chihong Ma, Qin Zhou, Jinjin Shi, Hua Gao, Di Huang, Huimin Xue, Han Wang, Zhenzhong Zhang, Sen Yang, Junli Zhang, Kaixiang Zhang
Summary: We developed a CRISPR-empowered electrochemical biosensor, named PER-E-CRISPR, for amplification-free and sensitive detection of miR-21. The biosensor combines the advantages of CRISPR/Cas13a and primer exchange reaction (PER) for target amplification. Under optimized conditions, the PER-E-CRISPR assay exhibits a linear range from 10-13 to 10-7 M and a limit of detection of 30.2 fM. The biosensor shows excellent performance in actual plasma, indicating promising prospects for miRNA detection in molecular diagnosis.
Article
Chemistry, Analytical
Gang Liang, Jie Zhao, Yufei Gao, Tao Xie, Jianhui Zhen, Ligang Pan, Wenwen Gong
Summary: Molecular docking (MD) analysis is widely used for studying the interaction between aptamers and small molecules. This study established steady-state aptamers of tertiary structures (SATS) using specific aptamers of tetracycline antibiotics as docking models. Molecular docking results revealed multiple binding sites in the SATS of aptamers, with significant variations in binding free energy (BFE) and docking score (DS). The study also proposed a method for MD analysis based on SATS, providing insights into binding mode and predicting binding sites.
Article
Chemistry, Analytical
Yixuan Xu, Changchang Teng, Huiping Dang, Dalong Yin, Lifeng Yan
Summary: Stable organic radical molecules with high NIR fluorescence quantum efficiency have been synthesized and encapsulated into nanoparticles, which show great potential for both photodynamic therapy (PDT) and photothermal therapy (PTT) of tumors.
Article
Chemistry, Analytical
Yu Su, Dandan Yang, Yanjie Wang, Jie Ding, Lan Ding, Daqian Song
Summary: In this study, a highly selective molecularly imprinted polymer Cu-MIPs@CS was designed and synthesized for bisphenol A (BPA). Cu-MIPs@CS showed significantly enhanced imprinting factor and selective factor towards BPA compared to MIPs@CS. It also exhibited superior discrimination ability between BPA and its structural analogue. Additionally, Cu-MIPs@CS were successfully applied as a solid phase extraction adsorbent for the determination of BPA in drinking water samples.
Article
Chemistry, Analytical
Yi Qiao, Qiongdan Zhang, Yukun He, Tianguang Cheng, Jing Tu
Summary: Single cell heterogeneity plays an important role in many biological phenomena, and distinguishing cells with specific mutations is beneficial for clinical diagnosis and drug screening. This study introduces a gel plate platform that can distinguish cell types based on their phenotypes, with low equipment requirement. The gel platform has potential in point-of-care circumstances and single-cell stimulation responses that prioritize efficiency and simplicity.
Article
Chemistry, Analytical
Chengke Wang, Shuyang Sun, Ping Wang, Huawei Zhao, Wenling Li
Summary: The food safety of aquatic products is a global concern. Nanotechnology-based analyses have advantages in the detection of bacteria, metal ions, and small molecule contaminants. This review summarizes the recent advances in biosensing strategies for aquatic products and highlights the application of nanomaterials, lateral flow-based biosensors, surface-enhanced Raman scattering, microfluidic chips, and molecular imprinting technologies.
Article
Chemistry, Analytical
Liping Zhu, Zeng Tang, Xuemei Zhang, Li Zhu, Tian Meng, Linying Yu, Ting Xiao, Shasha Lu, Xiaoli Xiong, Xiurong Yang
Summary: A sensitive off-on electrochemiluminescence DNA sensor was developed using Exo III-assisted cascade amplification system. The sensor achieved high selectivity and ultra-high sensitivity in detecting target DNA by utilizing ECL and SPR effects. This study provides a new perspective for designing highly sensitive and programmable ECL biosensors.
Article
Chemistry, Analytical
Tong Li, Mengxu Sun, Suping Xia, Ting Huang, Rong-Tian Li, Chunrong Li, Zong Dai, Jin-Xiang Chen, Jun Chen, Nuan Jia
Summary: Here, we developed a binary system based on DNA tetrahedron and fluorogenic RNA aptamers for highly specific and label-free mRNA imaging in living cells. This system achieved high specificity label-free detection of nucleic acids with a detection limit of 1.34 nM. The method has potential applications in early disease diagnosis and new drug development.
Article
Chemistry, Analytical
Yao Zhao, Shu Zhang, Wang Yao, Yuxuan Zhu, Jing Qian, Juan Yang, Nianjun Yang
Summary: A new hierarchical nanostructured composite with high conductivity and catalytic activity is synthesized. The sensor exhibits significant catalytic effect and high sensitivity for monitoring the environmental endocrine disruptor bisphenol A (BPA).