Article
Chemistry, Applied
Nail Altunay
Summary: A magnetic ionic liquid UA-DLLME technique was successfully applied for the preconcentration and extraction of 5-HMF in honey samples, with optimized microextraction factors using a multivariate optimization strategy, providing important reference data for further research.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2022)
Article
Spectroscopy
Monireh Shahvalinia, Arash Larki, Kamal Ghanemi
Summary: In this study, a simple and cost-effective method based on UA-DLLME and smartphone colorimetric measurement was introduced for the separation and determination of TCS in contaminated waters. By optimizing various experimental parameters and considering their effects, this method can accurately measure TCS in a wide concentration range and provides satisfactory results in multiple water and wastewater samples.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Chemistry, Analytical
Ragaa El Sheikh, Wafaa S. Hassan, Amira M. Youssef, Ahmed M. Hameed, Abdu Subaihi, Ahmed Alharbi, Ayman A. Gouda
Summary: An environmentally friendly, sensitive, easy and fast ultrasound-assisted ionic liquid-based dispersive liquid-liquid microextraction technique (UA-IL-DLLME) was developed for preconcentration and detection of trace quantities of nickel Ni(II) ion in water, food and tobacco samples. The technique utilized an ionic liquid (IL) as the extraction solvent and showed excellent extraction efficiency. The method has been validated and successfully applied to real samples with satisfactory results.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Applied
Xu Xu, Jiaxin Gao, Yupu Zhang, Lei Zhang
Summary: In this study, a novel magnetic ionic liquid (MIL) was designed and synthesized, and three benzyl-functionalized MILs were customized. The paracetyl phenyl functionalized MIL showed superior extraction efficiency among others. Under the optimal conditions, the MIL exhibited low detection limits, high recovery rates, and has the potential for detecting trace FQs in food samples.
Article
Chemistry, Analytical
Adil Elik, Handan Sarac, Hasan Durukan, Ahmet Demirbas, Nail Altunay
Summary: A vortex assisted magnetic ionic liquid based dispersive liquid-liquid microextraction method was developed for the determination and extraction of metribuzin in plant samples using a tetrachloromanganate-based magnetic ionic liquid as the extraction solvent. The optimized method showed low detection limit, good linearity, and was successfully applied for extraction and determination of metribuzin in plant samples.
MICROCHEMICAL JOURNAL
(2022)
Article
Chemistry, Applied
Nail Altunay, Adil Elik, Ahmet Demirbas, Savas Kaya, M. M. Maslov
Summary: An economical and green nanostructured supramolecular solvent-based ultrasound-assisted homogeneous liquid-liquid microextraction procedure with high enrichment factor and low detection limit was developed for the preconcentration and determination of Hg(II) ions in water and vegetable samples.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2021)
Article
Chemistry, Analytical
Xiaoyi Pu, Xin Wang, Youping Liu, Xin Di
Summary: In this study, a novel deep eutectic solvent was synthesized and used for the extraction of quinolones in environmental water. The method was found to be fast, sensitive, and environmentally friendly.
MICROCHEMICAL JOURNAL
(2023)
Review
Chemistry, Analytical
Lirong Nie, Chaochao Cai, Runpeng Guo, Shun Yao, Zhi Zhu, Yanchen Hong, Dong Guo
Summary: Developing effective and green methods for food analysis and separation is crucial for ensuring food quality and safety. Ionic liquids (ILs), developed under the framework of green chemistry, possess unique properties that make them suitable for food analysis. This review explores the current research status and developments in IL-assisted microextraction techniques for food analysis and separation. The advantages of IL-based techniques over traditional methods are discussed, as well as the practical applications of ILs in determining toxic substances in food.
Article
Chemistry, Analytical
Ragaa El Sheikh, Enas M. El Sheikh, Mahmoud S. Khalafalla, Lamees I. Mahfouz, Marwa M. El-Gabry, Ayman A. Gouda
Summary: A green, delicate, and rapid ultrasound-assisted ionic liquid-based dispersive liquid-liquid microextraction technique was developed for preconcentrating trace quantities of zirconium ions in real samples prior to spectrophotometric detection.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Adil Elik, Nail Altunay
Summary: This study presents an optimized magnetic ionic-based dispersive liquid-liquid microextraction (MIL-DLLME) method for the analysis and extraction of cadmium in water and food samples. The method exhibits good reliability and allows for accurate determination of cadmium content in water and food samples. Compared to conventional methods, this approach offers a fast, environmentally friendly, and simple way to determine cadmium with minimal solvent consumption and higher extraction capability.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2022)
Article
Chemistry, Applied
Sara Gholizadeh, Hamid Mirzaei, Jalil Khandaghi, Mohammad Reza Afshar Mogaddam, Afshin Javadi
Summary: In this study, a novel method combining ultrasound-assisted mixed solvent extraction with magnetic ionic liquid-based effervescent tablet-assisted dispersive liquid-liquid microextraction was developed for the efficient extraction of aflatoxins and ochratoxin A from tea samples. The method showed satisfactory extraction recoveries, low detection limits, and good repeatability.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2022)
Article
Chemistry, Analytical
Arshia Alizadeh Panahi, Afshin Javadi, Mohammad Reza Afshar Mogaddam
Summary: A novel method combining microwave-assisted extraction with magnetic ionic liquid-based dispersive liquid-liquid microextraction was developed for the extraction of chloramine-T from fish samples. This method achieved high extraction recovery, low limits of detection and quantification, good repeatability, and a wide linear range. The suggested method was successfully applied to analyze various fish samples marketed in Tabriz city, Iran.
JOURNAL OF SEPARATION SCIENCE
(2023)
Article
Chemistry, Physical
Mustafa Tuzen, Adil Elik, Nail Altunay
Summary: A simple, sensitive, selective and green ultrasound-assisted supramolecular solvent dispersive liquid-liquid microextraction (UA-SUPRAS-DLLME) method was developed for preconcentration and determination of chromium ions in various samples. By optimizing various parameters, high extraction efficiency and accuracy were achieved.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Analytical
M. C. Villegas-Alvarez, A. Arias-Borrego, I. Velasco, T. Garcia-Barrera
Summary: Sample treatment is a bottleneck in untargeted metabolomics, especially for complex samples like food or biofluids. This study developed a new analytical extraction method called three-phase-UA-HF-LPME, which improved the extraction efficiency and was validated using human milk. The method showed better sensitivity, enrichment factors, and metabolite coverage compared to the conventional liquid-liquid extraction method.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Analytical
Lingjun Hou, Yinghe Ji, Jing Zhao, Longshan Zhao
Summary: A vortex assisted-liquid-liquid microextraction (VA-LLME) pretreatment method using superparamagnetic nanofluid and deep eutectic solvents was developed for the isolation and preconcentration of quinolones in milk sample. The method proved to be simple, quick, and efficient, with high sensitivity and good recovery rates.
MICROCHEMICAL JOURNAL
(2022)
Article
Chemistry, Analytical
Mustafa Soylak, Rizqan Maulana
Summary: In this study, copper (II) and lead (II) ions were complexed with 1-nitroso-2-naphthol and preconcentrated on magnetic activated carbon cloth for flame atomic absorption spectrometric detection. Through the optimization of multiple parameters, a quantitative recovery of analyte ions was achieved, and the method was successfully applied for separation and preconcentration of copper (II) and lead (II) ions in water and food samples.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Ozgur Ozalp, Ozlem Kaya, Mustafa Soylak
Summary: A cloud point extraction procedure was developed for the separation and preconcentration of Sudan IV, followed by spectrophotometric detection. Optimized conditions were achieved by adjusting various parameters. The method was successfully applied for the determination of Sudan IV in chili-containing foods and cosmetics.
ANALYTICAL LETTERS
(2023)
Article
Chemistry, Analytical
Mustafa Soylak, Ali Osman Sevicin, Furkan Uzcan
Summary: A magnetic solid phase extraction (MSPE) method for determining nickel was established using carbon magnetic multiwalled carbon nanotubes as adsorbent. Various parameters were optimized to enhance the extraction efficiency of nickel. The method was applied to evaluate accuracy in water samples and determine nickel in tobacco samples.
ANALYTICAL LETTERS
(2023)
Editorial Material
Chemistry, Analytical
Mustafa Soylak, Resat Apak
Summary: This special issue of Analytical Letters features selected articles from the Third International Congress of Environmental Chemistry (EnviroChem 2021), in which the authors have expanded upon their conference papers and included their latest experimental results. EnviroChem 2021 aimed to promote and disseminate knowledge on various topics and technologies related to Environmental Chemistry. All articles have undergone the standard review process.
ANALYTICAL LETTERS
(2023)
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
Chemistry, Analytical
Lindomar A. Portugal, Edwin Palacio, Rejane Frizzarin, Joao H. Santos Neto, Victor Cerda, Sergio L. C. Ferreira
Summary: This work proposes an automated strategy for the speciation of inorganic selenium in infusion tea samples. The system utilizes an MSFIA-CVG-AFS system and sodium tetrahydroborate for chemical vapor generation. The method involves an online prereduction step to convert selenium (VI) to selenium (IV) before determining the total selenium concentration. The chemical parameters were optimized using a fractional factorial design. The method exhibited low detection and quantification limits, with a linear range and good precision. This method was successfully applied to analyze inorganic selenium speciation in commercially purchased tea samples.
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.
Article
Chemistry, Applied
M. Graca Dias, Elsa Vasco, Francisco Ravasco, Lufsa Oliveira
Summary: This study estimated the vitamin D intake of "adults" and "elderly" populations in Portugal using the TDS methodology. The results showed that the majority of people had inadequate vitamin D intake, well below the Dietary Reference Values.
Article
Chemistry, Applied
Yanan Wang, Jiachen Shi, Yong-Jiang Xu, Chin-Ping Tan, Yuanfa Liu
Summary: This study investigates the variations in lipid digestion profiles among individuals of different ages using in vitro digestion models. The findings suggest that adults have a more comprehensive lipid digestion compared to infants, and infants tend to release shorter chain length and more saturated free fatty acids during digestion. Additionally, the particle sizes in the stomach of the elderly were consistently larger. This study enhances our understanding of how lipids with different degrees of unsaturation undergo digestion in diverse age groups.
Article
Chemistry, Applied
Hyunjong Yu, Huisu Kim, Pahn-Shick Chang
Summary: Chitosan-pectin emulsion-filled hydrogel (EFH) was developed to enhance the bioaccessibility of lipophilic bioactive compounds through intestinal delivery. The EFH, prepared without crosslinking agents, demonstrated improved mechanical strength and compactness with higher pectin concentration. It retained the emulsion at pH 2.0 and released it at pH 7.4, resulting in enhanced release of free fatty acids and improved bioaccessibility of curcumin.
Article
Chemistry, Applied
Tongze Zhang, Siqi Hong, Jia-Rong Zhang, Pin-He Liu, Siyi Li, Zixian Wen, Jianwei Xiao, Guirong Zhang, Olivier Habimana, Nagendra P. Shah, Zhongquan Sui, Harold Corke
Summary: Lactic acid fermentation significantly affects the morphology and physicochemical properties of proso millet starch, including the formation of surface indentations and small pores, decrease in gelatinization temperatures, and changes in hardness and adhesiveness.
Article
Chemistry, Applied
Liqin Kong, Feng Hong, Peng Luan, Yiping Chen, Yaoze Feng, Ming Zhu
Summary: This study presents a novel impedance biosensor using composite nanomaterials and T1R1 as a signal probe, which can competitively and ultra-sensitively detect umami intensity. The biosensor exhibits exceptional analytical performance and is suitable for food flavor evaluation.
Article
Chemistry, Applied
Kunying Lv, Yixin Yang, Qilong Li, Ran Chen, Liang Deng, Yiwei Zhang, Ning Jiang
Summary: Horse's milk, with its high nutritional value and low allergenic proteins, could be a substitute for cow's milk in infant consumption. A proteomic method was used to identify and compare milk fat globule membrane (MFGM) and whey proteins from different horse breeds. The study found differences in protein composition and functionality, which could support the development of formulas more suitable for human infants.
Article
Chemistry, Applied
Enrique Jacobo Diaz-Montana, Helene Brignot, Ramon Aparicio-Ruiz, Thierry Thomas- Danguin, Maria Teresa Morales
Summary: Sensory perception of virgin olive oil is influenced by phenols and volatiles, which are affected by the composition of the oil and biological factors. This study investigated the effect of saliva and phenols on the release of volatiles, and found that the presence of phenols decreased the release of saturated volatiles.
Article
Chemistry, Applied
Wei Zhou, Rui Zhang, Zhen Cai, Fangfang Wu, Yong Hu, Chao Huang, Kun Hu, Yun Chen
Summary: Environmentally friendly and outstanding pH-responsive cationic starch nanoparticles (CSNP) were prepared from pH-sensitive starch. CSNP exhibited nanosize and regular sphere, highly free-flowing molecular chains, and demonstrated excellent pH responsiveness through multiple emulsion/demulsification transitions.
Article
Chemistry, Applied
Andrea Koo, Vinayak Ghate, Weibiao Zhou
Summary: This study suggests that direct seeding may negatively affect the nutritional quality of crops, causing a decrease in ascorbic acid, vitamin K, and total glucosinolate content.
Article
Chemistry, Applied
Tonghao Du, Yazhou Xu, Xiaoyan Xu, Shijin Xiong, Linli Zhang, Biao Dong, Jinqing Huang, Tao Huang, Muyan Xiao, Tao Xiong, Mingyong Xie
Summary: This study successfully improved the ACE inhibitory activity of black sesame seeds by fermenting them with Lactobacillus Plantarum NCU116 and hydrolyzing them using acid protease. The RF-PSO model was used to predict the ACE inhibitory activity during the hydrolysis process. Eight peptides with ACE inhibitory activity were identified from fermented black sesame seed hydrolysates after separation and screening.
Article
Chemistry, Applied
Yao Liu, Songyi Lin, Kexin Liu, Shan Wang, Qiaozhen Liu, Na Sun
Summary: This study analyzed the structural changes of shrimp proteins during digestion, predicted the immunodominant epitopes, and validated their allergenicity. The results showed that shrimp proteins were degraded into peptides during digestion, but still carried IgE epitopes that trigger allergic reactions.
Article
Chemistry, Applied
Tiantian Fu, Hongwei Cao, Yu Zhang, Xiao Guan
Summary: This study investigates the impact of milling on the active components in rice, with a focus on the stability and bioaccessibility of phenols, VB1, and alpha-GABA during cooking and digestion. The findings show that milling exacerbates the instability of gamma-GABA during cooking and VB1 during digestion, and it affects the bioaccessibility of these active compounds.
Article
Chemistry, Applied
Zhihao Yang, Yanru Hou, Min Zhang, Puxin Hou, Chang Liu, Lu Dou, Xiaoyu Chen, Lihua Zhao, Lin Su, Ye Jin
Summary: This study investigated the molecular mechanism of feeding regimes on lamb flavor by using TMT labeling combined with MS. The results showed that pasture-fed groups had higher levels of amino acids and volatile flavor substances compared to concentrate-fed groups. Additionally, several differentially abundant proteins associated with lamb flavor were identified.
Article
Chemistry, Applied
Zixuan Xie, De Zhang, Junyu Zhu, Qianqian Luo, Jun Liu, Jingtao Zhou, Xiaoyong Wang, Yuqiong Chen, Zhi Yu, Dejiang Ni
Summary: This study investigated the acidification of aroma-enhanced black tea during storage. Analysis of non-volatile substances and organic acids using UPLC-Q-TOF/MS and HPLC revealed a decrease in soluble sugars and amino acids, while an increase in organic acids such as oxalic acid, malic acid, and quinic acid. In vitro experiments further demonstrated that the acidification is a result of the decomposition of sugars and amino acids by heating, as well as the oxidation of aromatic aldehydes. Additionally, the study showed that the taste composition of tea infusion is altered, with reduced amino acids, catechins, soluble sugars, and flavonoids. This research provides a theoretical basis for improving the quality of black tea.
Article
Chemistry, Applied
Lin Wang, Falai Ma, Zihan Li, Yan Zhang
Summary: This study developed time-temperature integrators based on amyloglucosidase@Cu3(PO4)2 nanoflowers for monitoring the freshness of chilled pork. The results showed that the integrators were highly reliable and accurate in predicting the quality of chilled pork.