Article
Chemistry, Applied
Juntao Yan, Chenghao Zhang, Chunlei Wang, Dengbo Lu, Shizhong Chen
Summary: A direct immersion dual-drop microextraction (DIDDME) method was developed for the separation and preconcentration of Cr(III) and Cr(VI). Using two organic drops on needle tips of microsyringes, each containing a specific chelating reagent, Cr(III) and Cr(VI) were selectively extracted into different drops. The method showed low detection limits, wide linear range, high enrichment factors, and good precision, and was successfully applied to quantify Cr(III) and Cr(VI) in food samples.
Article
Chemistry, Applied
Tugce Unutkan Gosterisli, Buse Tugba Zaman, Emine Gulhan Bakirdere, Seyfullah Keyf, Sezgin Bakirdere
Summary: A new, green, and simple liquid-phase microextraction method, sieve conducted two syringe-based pressurized liquid-phase microextraction methods, combined with flame atomic absorption spectrometry for the preconcentration and determination of cobalt. The utilized ligand as complexing agent was synthesized in the laboratory, and the developed method showed a 33.7-fold enhancement in detection power. This method was effectively applied for the determination of cobalt in quince samples.
Article
Chemistry, Multidisciplinary
Shelja Tiwari, Amit Lochab, Kajal Jindal, Reena Saxena
Summary: A solid phase extraction method using tris(2-aminoethyl)amine functionalized multiwalled carbon nanotubes as extractant was studied for speciation of chromium species in contaminated water samples. The system showed improved analytical performance by reducing sample consumption and sampling time. Computational results supported the experimental findings, suggesting spontaneous interaction between chromium and modified nanoadsorbent. The method was validated by spike recovery tests and applied to real water samples.
Article
Spectroscopy
Joanna Dobrzynska, Marzena Dabrowska, Ryszard Dobrowolski, Kinga Morlo
Summary: Pt(IV) ion-imprinted thiocyanato-functionalized SBA-15 material (Pt(IV)S1) was used for preconcentration of Pt(IV) ions from digested geological samples before ETAAS determination. The ion-imprinted material showed high adsorption affinity and selectivity towards Pt(IV) ions. The proposed procedure achieved a high enrichment factor of 38 and a low limit of quantification of 0.079 mg kg-1.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2023)
Article
Chemistry, Applied
Hassan Elzain Hassan Ahmed, Ali Mohammednour Ali Mohammed, Mustafa Soylak
Summary: A novel magnetic Luffa@TiO2 sorbent was synthesized and characterized for the solid phase extraction of Pb(II). Optimized analytical parameters and validated with certified reference materials, the method showed good preconcentration efficiency and low detection and quantification limits for both liquid and solid samples.
Article
Chemistry, Multidisciplinary
Jinshun Cang, Weixi Gu, Yuheng Zhang, Xiashi Zhu
Summary: This study developed a magnetic solid extractant coated with amino acid ionic liquid and graphene oxide for the speciation analysis of Cr(iii) and Cr(vi) in water samples using ICP-OES. The method showed good linear ranges and detection limits under optimal conditions, and its effectiveness was validated through quantitative analysis of environmental water samples. This method reveals promising potential in the field of environmental remediation.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Analytical
Nail Altunay, Adil Elik
Summary: A new and green analytical method using UA-alkanol-based-SUPRAS-ME coupled with FAAS detection was developed for extraction and determination of cadmium in food and environmental samples, showing good linear calibration graphs, acceptable limits of detection, and reliable recovery rates. Total cadmium concentrations were successfully determined in the specified ranges for both food and environmental samples.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Analytical
Murat Yazar, Zekeriyya Bahadir, Celal Duran
Summary: A novel and fast salt-assisted bulk membrane extraction (SA-BME) combined with flame atomic absorption spectrometry (FAAS) method was proposed for the separation and preconcentration of Cr(VI) in water samples. The total chromium content in water samples could be successfully determined through a series of steps, and the method showed good recoveries in practical applications.
ANALYTICAL LETTERS
(2021)
Article
Chemistry, Analytical
Juntao Yan, Chenghao Zhang, Chunlei Wang, Dengbo Lu, Shizhong Chen
Summary: A novel method called direct immersion dual-drop microextraction (DIDDME) was developed for the separation and preconcentration of inorganic chromium species (Cr(III) and Cr(VI)) followed by graphite furnace atomic absorption spectrometry detection. The method involved immersing two organic drops into a stirred sample solution, with each drop containing a chelating reagent that reacts with a specific species. This method avoids tedious pre-treatment steps and showed satisfactory results in the analysis of environmental water samples and certified reference materials.
Article
Environmental Sciences
Efe Sinan Aydin, Buse Tugba Zaman, Gamze Dalgic Bozyigit, Sezgin Bakirdere
Summary: In this study, the detection sensitivity of a conventional flame atomic absorption spectrophotometer (FAAS) for manganese (Mn2+) determination was enhanced by using a preconcentration method on wastewater samples. The synthesis of flower-shaped Ni(OH)2 nanomaterials as sorbent material in the preconcentration procedure was conducted. By optimizing the extraction method, including pH, desorption solvent concentration and volume, mixing type and period, nanoflower amount, and sample volume, the detection limit of the optimized method was determined to be 2.2 μg L-1, achieving a 41-fold enhancement in detection power compared to direct FAAS measurement. Spike recovery experiments with domestic wastewater confirmed the feasibility of the proposed method, with percent recoveries ranging from 95-120%.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
Article
Chemistry, Analytical
Mustafa Soylak, Mohamed Alasaad, Ozgur Ozalp
Summary: Magnesium cobaltite (MgCo2O4) nanosorbent was prepared and applied for enrichment and separation of Pb(II) in solid phase extraction. Optimized parameters were determined to achieve the best recovery of Pb(II) ions. The developed SPE method showed satisfactory results in the determination of lead(II) in water and food samples.
MICROCHEMICAL JOURNAL
(2022)
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
Adil Elik, Tolga Karakoy, Yeter Cilesiz, Nail Altunay
Summary: A new ultrasonic-assisted ionic liquid-based microextraction (UA-ILME) method was developed for rapid extraction of chromium and cadmium in bean samples from different regions in Turkey, with the analytes measured by flame atomic absorption spectrophotometry. The method showed high enrichment factors and average recoveries, indicating its effectiveness in extracting and determining trace amounts of metals in samples.
JOURNAL OF THE IRANIAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Analytical
Zekeriyya Bahadir, Arif Mermer
Summary: A new CFPT ligand was synthesized and used for the preconcentration and determination of Pd(2+) ions in aqueous solution, showing excellent selectivity in highly acidic conditions. The EME-FAAS method demonstrated good recoveries when applied to spiked samples such as well, stream, tap, and sea water.
ANALYTICAL LETTERS
(2021)
Article
Environmental Sciences
Aminul Islam, Anjali Chauhan
Summary: A new Cd(II)-imprinting polymer was synthesized and used for the development of a dispersive magnetic solid-phase extraction method for the determination of Cd(II) in environmental samples. The material exhibited promising adsorption capacity and fast kinetics, making it a potential candidate for Cd(II) determination in various samples.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Analytical
Mohadeseh Safaei, Hadi Beitollahi, Masoud Reza Shishehbore
JOURNAL OF ANALYTICAL CHEMISTRY
(2020)
Article
Chemistry, Multidisciplinary
Shohre Vafaee-Shahi, M. Reza Shishehbore, Ali Sheibani, Masoumeh Tabatabaee
JOURNAL OF THE CHINESE CHEMICAL SOCIETY
(2020)
Article
Electrochemistry
Mohadeseh Safaei, Hadi Beitollahi, Masoud Reza Shishehbore
SURFACE ENGINEERING AND APPLIED ELECTROCHEMISTRY
(2020)
Article
Chemistry, Analytical
Hamideh Tafazoli, Mohadeseh Safaei, M. Reza Shishehbore
ANALYTICAL SCIENCES
(2020)
Article
Chemistry, Multidisciplinary
Zahra Aghamiri, Mohadeseh Safaei, Masoud Reza Shishehbor
Summary: The study investigated the analysis of tramadol using UV-Vis spectrophotometry method with response surface methodology and central composite design, showing a good fit between the models and experimental data. The calibration curve was linear and stable, indicating the developed method is reliable for the determination of tramadol in real samples.
JOURNAL OF THE CHINESE CHEMICAL SOCIETY
(2021)
Review
Materials Science, Multidisciplinary
Mohadeseh Safaei, Masoud Reza Shishehbore
Summary: Nanotechnologies, particularly the development of two-dimensional MXene-derived MQDs, show promising potential in various applications such as energy, sensors, and catalysis, due to their distinguished optical and electronic attributes.
JOURNAL OF MATERIALS SCIENCE
(2021)
Review
Chemistry, Analytical
Mohadeseh Safaei, Masoud Reza Shishehbore
Summary: It is widely accepted that cancer is a major cause of mortality globally and can have significant physiological and psychological impacts on patients, especially those undergoing chemotherapy treatments. This study discusses recent techniques for extracting and quantitatively determining compounds in pharmaceutical and biological samples. The results show that a variety of analytical techniques such as electroanalytical, spectroscopy, and chromatography methods can be employed for the analysis of anticancer drugs.
Article
Spectroscopy
R. Dastaran, A. Sheibani, M. Reza Shishehbore, H. Saeedi-Sourck
Summary: This study describes the combination of continuous wavelet transforms (CWT) with zero-crossing strategy and spectral ratio treatment for simultaneous determination of atorvastatin (AT) and rosuvastatin (RVS). The proposed method was successfully applied for simultaneous detection of AT and RVS in combination dosage formulations, and the results were consistent with those obtained from HPLC.
JOURNAL OF APPLIED SPECTROSCOPY
(2022)
Article
Spectroscopy
M. Karami, M. Safaei, M. R. Shishehbore, A. Sheibani
Summary: A new kinetic spectrophotometric method has been developed for the determination of vitamin B-12 in biological samples and pharmaceutical formulations, showing wide linear dynamic range, low detection limit, and short analysis time. Mathematical models were obtained for the determination of vitamin B-12 under optimal conditions, with excellent agreement with reference methods in terms of accuracy and precision.
JOURNAL OF APPLIED SPECTROSCOPY
(2021)
Article
Electrochemistry
Siavash Sazideh, Masoud Reza Shishehbore
Summary: The research utilized a carbon paste electrode modified by gold nano-particles and graphene nano-sheets for the determination of cisplatin concentration. The modified electrode exhibited excellent electrocatalytic activity for cisplatin oxidation, showing potential for applications in biological sample analysis.
RUSSIAN JOURNAL OF ELECTROCHEMISTRY
(2021)
Article
Electrochemistry
Parisa Baghbanpoor, Masoud Reza Shishehbore, Hadi Beitollahi, Ali Sheibani
Summary: The electrocatalytic performance of a carbon paste electrode modified with a ferrocene-derivative, CeO-ZnO nanocomposite, and an ionic liquid was investigated for simultaneous detection of penicillamine and tryptophan. The results showed that the oxidation of penicillamine on the modified electrode surface occurred at a less positive potential compared to the unmodified electrode. The modified electrode exhibited high selectivity and satisfactory reproducibility, indicating its potential for analytical applications.
RUSSIAN JOURNAL OF ELECTROCHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Parisa Baghbanpoor, Hadi Beitollahi, Masoud Reza Shishehbore, Ali Sheibani
Summary: This study aimed to modify a carbon paste electrode (CPE) with CeO2-ZnO nanocomposite, ethyl 2-(4-ferrocenyl[1,2,3]triazol-1-yl) acetate (EFTA), and 1-Butyl-3-methylimidazolium hexafluorophosphate (BMIM-PF6) ionic liquid. The modified electrode, CeO2-ZnO/EFTA/BMIM-PF6/CPE, showed high electrocatalytic activity for the oxidation of methionine (Met). The linear oxidation peak currents for Met ranged from 0.05 to 600.0 mu M, with a detection limit of 0.015 mu M. In the presence of tryptophan (Trp), the developed sensor exhibited well-defined and separate differential pulse voltammetry (DPV) peaks for Met and Trp
JOURNAL OF THE IRANIAN CHEMICAL SOCIETY
(2022)
Article
Spectroscopy
Sara Ghorbanpoor, M. Reza Shishehbor, Ali Sheibani, Mohadeseh Safaei, Ali Nazari
JOURNAL OF APPLIED SPECTROSCOPY
(2020)
Article
Chemistry, Analytical
Nasrin Rokhsefid, Masoud Reza Shishehbore
ANALYTICAL METHODS
(2019)
Article
Chemistry, Multidisciplinary
Mohadeseh Safaei, Hadi Beitollahi, Masoud Reza Shishehbore, Somayeh Tajik, Rahman Hosseinzadeh
JOURNAL OF THE SERBIAN CHEMICAL SOCIETY
(2019)