Article
Biochemistry & Molecular Biology
Yesica Vicente-Martinez, Maria Jose Munoz-Sandoval, Manuel Hernandez-Cordoba, Ignacio Lopez-Garcia
Summary: Due to the toxicity of mercury, it is necessary to implement analytical procedures that can quantify the different forms of mercury in the environment, even at low concentrations. Additionally, it is desirable for the procedures to distinguish between these forms due to their various environmental and health consequences. This study proposes a dispersive solid-phase microextraction method using a magnetic hybrid material formed by graphene oxide and ferrite (Fe3O4@GO) as the adsorbent, followed by determination using electrothermal atomic absorption spectrometry (ETAAS).
Review
Chemistry, Analytical
Vasil Andruch, Radoslav Halko, Jozef Tucek, Justyna Plotka-Wasylka
Summary: Atomic absorption spectrometry (AAS) is a widely used technique for metal quantification due to its practicality, easy use, and low cost. Sample pretreatment is commonly employed to improve the metrological characteristics of AAS, particularly the sensitivity and the detection limit. Deep eutectic solvents (DES) are being introduced into the analytical practice as new solvents in consideration of the principles of Green Analytical Chemistry. This article focuses on the potential of DES for the separation of metals and metalloids followed by AAS quantification, with an emphasis on their use in various liquid-liquid microextraction procedures.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2022)
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
Biochemistry & Molecular Biology
Yesica Vicente-Martinez, Maria Jose Munoz-Sandoval, Manuel Hernandez-Cordoba, Ignacio Lopez-Garcia
Summary: A solid-phase dispersive microextraction method using ferrite as an adsorbent was developed for separating and determining Ga(III) and In(III) ions. The ions were adsorbed onto the ferrite, which was easily collected with a magnet. The analytes were desorbed and measured using electrothermal atomic absorption spectrometry. The procedure showed high enrichment factor and low detection limits, and it was verified with standard reference materials and standard additions. The method could potentially be used for recovering valuable elements from different matrices for reuse.
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, Analytical
Juntao Yan, Chenghao Zhang, Chunlei Wang, Dengbo Lu, Shizhong Chen
Summary: This study proposes a new method based on direct immersion dual-drop microextraction for simultaneous speciation and enrichment of V(IV) and V(V). The method avoids tedious and complicated pre-oxidation/pre-reduction and centrifugation/filtration operations, and has been successfully applied to determine V(IV) and V(V) in water samples.
MICROCHEMICAL JOURNAL
(2022)
Article
Chemistry, Analytical
Jussiane S. S. Silva, Graciela M. M. Heidrich, Bruno O. O. Poletto, Jose N. G. Paniz, Valderi L. L. Dressler, Erico M. M. Flores
Summary: A direct solid sampling method using ETV-ICP-MS was developed for determining mercury in bioresorbable calcium phosphate-based materials. The method involved fast sample heating with a halogen lamp, followed by vaporization and cooling steps. Mercury vaporized at a low temperature and did not co-vaporize the main matrix. External calibration using aqueous solutions was used for quantification. The method showed good accuracy, precision, and sample throughput, making it suitable for routine analyses.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2023)
Review
Instruments & Instrumentation
Qing Yang, Yilan Zhao, Huimin Yu, Xiaoli Xiong, Ke Huang
Summary: Analytical atomic spectrometry is a widely-used technique for detecting inorganic elements in diverse samples. Sample pretreatment methods, such as extraction and preconcentration, are critical for elemental analysis. This review focuses on the applications and advancements of various sample separation and preconcentration techniques in analytical atomic spectrometry.
APPLIED SPECTROSCOPY REVIEWS
(2023)
Article
Chemistry, Analytical
Andrey Shishov, Irina Timofeeva, Artur Gerasimov, David Israelyan, Andrey Bulatov
Summary: A hydrophobic deep eutectic solvent-based liquid-phase microextraction approach was developed for the determination of ultratrace arsenic in foods. This method allows preconcentration of arsenic without the use of additional organic solvents and reducing agents.
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)
Review
Instruments & Instrumentation
Orhan Acar
Summary: The developments of electrothermal atomic absorption spectrometry and high-resolution continuum source - graphite furnace atomic absorption spectrometry have enabled the precise determination of volatile and moderately-volatile elements in various sample solutions using chemical modifiers.
APPLIED SPECTROSCOPY REVIEWS
(2022)
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
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
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
Adrian Garcia-Figueroa, Stanislav Musil, Tomas Matousek
Summary: An automated and high-throughput method for sensitive determination of tellurium species in the environment, using flow injection hydride generation interfaced with inductively coupled plasma triple quadrupole mass spectrometry, was developed. The method showed excellent sensitivity and repeatability, and was successfully applied to the analysis of real samples.
ANALYTICAL CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Mustafa Tuzen, Ahmet Sari, Mohammad Reza Afshar Mogaddam, Savas Kaya, K. P. Katin, Nail Altunay
Summary: A novel adsorbent was synthesized by modifying waste rubber tires derived activated carbon, showing high adsorption performance for mercury ions. The synthesized nanocomposite exhibited good adsorption capacity for both inorganic and organic mercury, with adsorption process being spontaneous and exothermic, and the material still reusable after multiple cycles. DFT calculations and theoretical results supported the experimental findings of strong adsorption capabilities between chemical species studied in this research.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Analytical
Mahboob Nemati, Nail Altunay, Mustafa Tuzen, Mir Ali Farajzadeh, Mohammad Reza Afshar Mogaddam
Summary: An organic polymer was re-precipitated in solution to be used as an adsorbent for dispersive solid-phase extraction of pesticides in honey samples. The method provided high extraction recoveries, enrichment factors, and acceptable precision.
JOURNAL OF SEPARATION SCIENCE
(2022)
Article
Chemistry, Applied
Nail Altunay, Mustafa Tuzen, Mohammad Reza Afshar Mogaddam
Summary: A green and innovative ultrasonic-assisted dispersive liquid-liquid microextraction using hydrophilic deep eutectic solvents (UA-HDES-DLLME) was developed for the selective and simultaneous extraction and enrichment of Pb (II) and Cd (II) in water and food samples for flame atomic absorption spectrometry. The method showed low limits of detection and quantification with high accuracy, as confirmed by analyses of certified reference materials.
FOOD ADDITIVES AND CONTAMINANTS PART A-CHEMISTRY ANALYSIS CONTROL EXPOSURE & RISK ASSESSMENT
(2022)
Article
Chemistry, Applied
Nail Altunay, Mustafa Tuzen, Baki Hazer, Adil Elik
Summary: A newly synthesized xanthate functionalized chlorinated polypropylene was used as an adsorbent for the orbital shaker based on dispersive solid phase microextraction of caffeine from various samples. The synthesized adsorbent was characterized using FTIR-ATR and 1H NMR. Various parameters were optimized, and the method showed a wide linear range and high recovery.
Article
Chemistry, Applied
Nail Altunay, Adil Elik, Mustafa Tuzen, Muhammad Farooque Lanjwani, Mohammad Reza Afshar Mogaddam
Summary: A simple, rapid, sensitive and selective alkanol-based supramolecular solvent-assisted dispersive liquid-liquid microextraction (SSA-DLLME) method was developed for the extraction and determination of acrylamide (AA) in various food samples. The method showed effective extraction of AA at short vortex time and acidic pHs. The linear range, LOD and LOQ of the method were determined. Factorial design was used to understand the factors affecting extraction recovery of AA. The optimized SSA-DLLME method was successfully applied to process food samples for the determination of AA.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2023)
Article
Energy & Fuels
Anila Noor, Rooh Ullah, Mustafa Tuzen, Atya Hassan, Saif Ullah
Summary: This study focused on the degradative removal of organic dyes by synthesizing silver nanoparticles (AgNPs) and coating them onto activated carbon. The AgNPs/AC showed excellent degradation efficiency for methyl blue and methyl orange with removal capacities of 405 mg/g and 346 mg/g, respectively, representing 90% and 77% photodegradation in just 30 minutes.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Chemistry, Multidisciplinary
Ebaa Adnan Azooz, Mustafa Tuzen, Wael I. Mortada
Summary: In this study, an economical and green microextraction technique called AA-DLLME-SFO was used to separate Co(II), Pb(II), and Pd(II). The use of air agitation as a green co-factor addressed the drawbacks of previous techniques. The method achieved successful separation of the target metals with low detection limits and high preconcentration factors. The environmental friendliness of the approach was also evaluated using the GAPI and AGREE indices, revealing its sustainability.
Article
Chemistry, Applied
Adil Elik, Aysenur Ozturk Altunay, Muhammad Farooque Lanjwani, Mustafa Tuzen
Summary: A new method called switchable hydrophilicity solvent-based ultrasound-assisted liquid-liquid microextraction (SHS-UA-LLME) was proposed for the extraction and determination of nitrite in heat processed foods. The method involved the use of three switchable hydrophilicity solvents, protonation and conversion steps, and the application of ultrasound to enhance extraction capability. Various parameters were optimized, and the method showed good sensitivity and selectivity. The use of SHSs and the elimination of heating and centrifugation steps make this method cost-effective and time-saving compared to other similar methods.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2023)
Article
Chemistry, Applied
Sefa Yilmaz, Naeem Ullah, Demirhan Citak, Baki Hazer, Mustafa Tuzen
Summary: The goal of this study was to develop an efficient method to extract and pre-concentrate copper and cadmium from food, soft drink, and water samples using Vortex Assisted Dispersive Solid Phase Microextraction (VAdSP-μE) with a magnetic polystyrene-b-poly dimethyl siloxane block copolymer (MPCP). The optimized conditions resulted in a linear range of 2.5-140 μg L-1 and 5.1-100 μg L-1, LOD of 0.8 and 1.7 μg L-1, RSD of 1.1% and 0.7%, and enhancement factors of 50 for Cu and Cd, respectively.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2023)
Article
Chemistry, Physical
Naeem Ullah, Baki Hazer, Mustafa Tuzen
Summary: A novel solid phase microextraction in a portable syringe system (SPME-PSS) was developed for the removal of malachite green (MG) using UV-Vis spectrometric determination. A column of iminodiacetate functionalized polymethyl methacrylate (PMMA-ida) connected with a syringe system was used as an adsorbent medium to enhance the contact area between the solid and liquid phases, resulting in increased adsorption of MG from aqueous medium. The adsorption behavior and properties of MG on PMMA-ida were investigated, and the results showed that the adsorption followed pseudo-second-order kinetic and favorable isotherms. The proposed adsorbent had a high adsorption capacity and could be recycled multiple times without a decrease in regeneration capability.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Chemistry, Applied
Nail Altunay, Baki Hazer, Muhammad Farooque Lanjwani, Mustafa Tuzen, Hameed Ul Haq, Grzegorz Boczkaj
Summary: A new PoleS block/graft copolymer was synthesized and used as an adsorbent for UA-DSPME of Sb(III) in bottled beverages. The method showed good recovery and high tolerance limit of matrix ions presence. Under optimized conditions, the method exhibited a wide linearity range, low limits of detection and quantitation, high extraction recovery, and satisfactory preconcentration factor and enhancement factor. The influences of variable on the recovery of Sb(III) were estimated using factorial design.
Article
Chemistry, Physical
Rooh Ullah, Naeemullah, Mustafa Tuzen
Summary: Hazardous wastewater containing different dyes from various industries poses great risks to human health. To address water pollution, eco-friendly composites of titanium oxide (TiO2) and alumina (Al2O3) were synthesized and characterized. Experimental results showed that a TiO2/Al2O3 sample with a molar ratio of 0.1/1 exhibited the highest photodegradation efficiency for malachite green and eosin Y. The adsorption capacity of Al2O3 for eosin Y was found to be higher than for malachite green. The photodegradation process followed Langmuir isotherms and pseudo-second order kinetics, and the adsorption method was determined to be exothermic. Overall, the TiO2-Al2O3 photocatalyst showed excellent performance for organic dye degradation without generating secondary pollutants.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Chemistry, Physical
Rooh Ullah, Mustafa Tuzen
Summary: Reactive adsorption desulphurization (RADS) is a technique for producing ultra-clean fuel with high sulphur adsorption capacities. In this study, ultra nano-sized ZnO nanoparticles were synthesized and utilized as a support for Ni nanoparticles. The RADS activity of the catalyst increased significantly with the decrease of ZnO particle size, achieving high breakthrough sulphur adsorption capacities. The stability of the NiZnS-1 adsorbent was maintained after multiple desulfurization regeneration cycles.
SURFACES AND INTERFACES
(2023)
Article
Environmental Sciences
Rooh Ullah, Mustafa Tuzen, Baki Hazer
Summary: A novel adsorbent, opioid silver-morphine-functionalized polypropylene, was synthesized through a one-pot reaction at room temperature and successfully used as a photocatalytic degradation catalyst for the removal of methyl orange from wastewater. UV spectral analysis revealed the excitation of surface plasmon resonance as the main characteristic of the polymer-Ag nanocomposite. Scanning electron microscopy showed that the silver nanoparticle-doped polymer had a continuous matrix and uniform distribution of Ag NPs. The AgPP-mrp catalyst exhibited high degradation efficiency under solar irradiation, achieving a degradation capacity of 139 mg/g in a short period of time (35 min).
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Review
Chemistry, Multidisciplinary
Naeem Ullah, Mustafa Tuzen
Summary: Sample preparation, a time-consuming and challenging phase of analytical procedures, has gained importance in the analytical process. The development of green analytical methods has driven the improvement of traditional sample preparation processes. This review focuses on the use of green switchable solvents in sample preparation, particularly in extracting metal ions and organic compounds for research in various fields.
