Article
Chemistry, Multidisciplinary
Mohammad Rezaee, Faezeh Khalilian, Alireza Dehgan, Parisa Tajer-Mohammad-Ghazvini
Summary: The study describes a method of homogeneous liquid-liquid microextraction via flotation assistance for preconcentration of trace amounts of Mn(II) without the need for centrifugation. The enriched analyte is determined by ICP-MS, with optimized conditions providing a linear dynamic range of 1.0-500.0 ng L-1 and a detection limit of 0.1 ng L-1 for manganese in water samples.
INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Natalia Manousi, Abuzar Kabir, Kenneth G. Furton, Aristidis N. Anthemidis
Summary: This study presents a novel dual lab-in-syringe flow-batch platform for automatic fabric-disk-in-syringe sorptive extraction followed by oxidative back-extraction as a front end to inductively coupled plasma atomic emission spectrometry. The developed platform shows excellent linearity, good method precision, and applicability for metal analysis at trace levels. It offers advantages including effectiveness, compactness, lower back-pressure, and lower time of analysis.
ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Maliheh Heidarbeigi, Mohammad T. Jafari, Mohammad Saraji
Summary: The study utilized a tandem microextraction method combining centrifuge free dispersive liquid-liquid microextraction and thin-film microextraction for the analysis of molinate in environmental samples, achieving high detection sensitivity and accuracy under optimized conditions. This approach offers a feasible method for the determination of molinate in real samples, with the recovery of spiked samples ranging between 82% and 113%.
Article
Chemistry, Analytical
Mojdeh Mohammadi, Sara Khosravi, Amir Nili-Ahmadabadi, Mahdie Kamalabadi, Vahid Ghasemzadeh-Mohammadi, Abbas Afkhami
Summary: In this research, a novel method combining ion mobility spectrometry (IMS) and dispersive liquid-liquid microextraction was developed and validated for the fast and quantitative analysis of Ampyra (AMP) in real samples. The method utilized silver nanoparticles as modifier agents and improved sensitivity through the delay of carrier gas flow after sample injection. Under the optimized conditions, AMP was detected in the linear range of 0.4-16 µmol L-1 with a detection limit of 0.12 µmol L-1. The developed method was successfully applied to quantify AMP in urine samples and validated against HPLC-UV/Vis. The proposed method opens up new possibilities for developing simple, fast, and effective analytical methods.
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
(2023)
Article
Chemistry, Analytical
Nathaniel D. Fletcher, Benjamin T. Manard, Debra A. Bostick, William D. Bostick, Shalina C. Metzger, Brian W. Ticknor, Kayron T. Rogers, Cole R. Hexel
Summary: The analysis of impurities in a uranium ore concentrate (UOC) provides valuable information on the source, production history, and potential intended use. Concentrations of phosphorus and sulfur were determined by mass spectrometry and compared to results from a pyrohydrolysis method. The method allows for the removal of interferences in the analysis of species in UOC materials.
Article
Chemistry, Applied
Mohammad Rezaee, Faezeh Khalilian, Hossein Khodaverdi, Mohammad Reza Pourjavid
Summary: In this study, an efficient microextraction method, HLLME-FA, was applied for the separation and preconcentration of Ni(II), providing a fast, simple, and efficient way to determine nickel. The parameters affecting the extraction efficiency of the proposed method were studied and optimized, resulting in satisfactory outcomes under optimal conditions.
JOURNAL OF WATER CHEMISTRY AND TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Mohammad Rezaee, Parisa Tajer-Mohammad-
Summary: A new method using homogeneous liquid-liquid microextraction via flotation assistance (HLLME-FA) has been developed for the determination of Zn(II) in water samples. The method utilizes graphite furnace atomic absorption spectrometry (GFAAS) and 1-(2-Pyridylazo)-2-naphthol (PAN) as a chelating reagent. The method does not require centrifugation and a special extraction cell is designed to facilitate collection of the low density extraction solvent. The optimized conditions have led to satisfactory results for the analysis of tap water, well water and sea water.
BULLETIN OF THE CHEMICAL SOCIETY OF ETHIOPIA
(2022)
Article
Chemistry, Analytical
Ronja Suvela, Matti Niemela, Paavo Peramaki
Summary: The present study introduces a new and selective analysis method for determining low xanthate concentrations. This study addresses the growing concern over the environmental impact of xanthates and the need for reliable analysis methods. The method utilizes the complex formation between xanthates and various metal ions in aqueous solution, followed by liquid-liquid extraction and high-performance liquid chromatography, to accurately determine xanthates. By using Cu(II) as the complex metal ion, good separation and high measurement sensitivity are achieved. The method has been optimized for sodium isopropyl xanthate and sodium isobutyl xanthate, with detection limits of 24.7 μg/L and 13.3 μg/L, respectively. With a linear calibration range of 0.1-15 mg/L and a total analysis time of 4-5 min, this method offers a fast and sensitive option for selective xanthate determination.
JOURNAL OF SEPARATION SCIENCE
(2023)
Article
Biochemical Research Methods
Mohammed Altahir Suliman, Taofiq Abdulraheem Olarewaju, Chanbasha Basheer, Hian Kee Lee
Summary: Petroleum is a complex material containing a wide range of compounds, and ASTM methods are globally accepted but have limitations in terms of sample preparation. The challenge in petrochemical analysis is to develop rapid and simpler automated sample preparation procedures. Microextraction is considered an excellent complement to current methods.
JOURNAL OF CHROMATOGRAPHY A
(2021)
Article
Chemistry, Analytical
Fernanda C. Pinheiro, Miguel Angel Aguirre, Joaquim A. Nobrega, Nerea Gonzalez-Gallardo, Diego J. Ramon, Antonio Canals
Summary: A new pretreatment method using ICP OES has been developed for the determination of Cd, Co, Hg, Ni, Pb, and V in drug samples. By optimizing the DLLME procedure with a DES solvent, the analytical capabilities have been significantly improved with lower LOQ values and higher enrichment factors compared to direct ICP OES analysis. Trueness evaluation showed satisfactory recovery and RSD values, meeting the recommended standards by USP Chapter 232.
ANALYTICA CHIMICA ACTA
(2021)
Article
Chemistry, Analytical
Maliheh Heidarbeigi, Mohammad Saraji, Mohammad T. Jafari
Summary: In this study, modified polyacrylonitrile/silica aerogel fibers were used as an adsorbent for thin-film microextraction of chlorpyrifos. The extracted analyte was analyzed using corona discharge ion mobility spectrometry. The results showed that the modified polyacrylonitrile/silica aerogel fibers method successfully determined chlorpyrifos in well water, river water, agricultural wastewater, and tangerine samples.
ANALYTICAL METHODS
(2022)
Article
Chemistry, Analytical
Abolghasem Jouyban, Mir Ali Farajzadeh, Mohammad Reza Afshar Mogaddam, Fariba Khodadadeian, Mahboob Nemati, Maryam Khoubnasabjafari
Summary: A new microextraction procedure based on liquid-liquid microextraction using a deep eutectic solvent accelerated by microwave radiations was developed for the extraction of three beta-blockers from plasma samples. Low limits of detection, high extraction recovery, and good precision were achieved, making it an effective method for determination of the beta-blockers' concentrations in plasma samples.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Analytical
Abhijit Saha, Khushboo Kumari, Sadhan Bijoy Deb, Manoj Kumar Saxena
Summary: Quality assurance of nuclear materials is crucial for the safe operation of nuclear reactors. This study developed a novel three-step matrix separation procedure for quantifying trace impurities in U3Si2-Al using ICP-MS, reducing liquid waste generation significantly. Validation of the analytical methodology showed analyte recoveries >= 95% and RSDs within 8%.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2021)
Article
Chemistry, Applied
Rosa Penalver, Natalia Arroyo-Manzanares, Natalia Campillo, Pilar Vinas
Summary: This study proposed a method using gas chromatography-mass spectrometry to monitor and quantify contaminants in honey from plastic food packages, with dispersive liquid-liquid microextraction used as a preconcentration technique. Fifteen target compounds were quantified, and untargeted analyses identified various migrants in honey samples. The proposed method was deemed useful for quantification and identification of potential migrants from plastics in challenging samples like honey.
Article
Chemistry, Analytical
Zsolt Varga, Maria Wallenius, Adrian Nicholl, Klaus Mayer
Summary: A reliable and accurate laser ablation multi-collector inductively coupled plasma mass spectrometry method was developed for analysis of inhomogeneous samples containing uranium particles or aggregates of various enrichments. The results demonstrate that this method can accurately and precisely determine the various constituents of the sample.
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Mohammad Rezaee, Faezeh Khalilian
BULLETIN OF THE CHEMICAL SOCIETY OF ETHIOPIA
(2015)
Article
Chemistry, Analytical
Faezeh Khalilian, Somayeh Amiri Hanzaki, Mohammad Yousefi
JOURNAL OF SEPARATION SCIENCE
(2015)
Article
Chemistry, Multidisciplinary
Manoochehr Bahmaei, Hossein Ali Mashayekhi, Faezeh Khalilian
JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY
(2015)
Article
Chemistry, Multidisciplinary
Mohammad Rezaee, Reyhaneh Shadaniyan, Majid Haji Hosseini, Faezeh Khalilian
Article
Food Science & Technology
Faezeh Khalilian, Mohammad Rezaee
FOOD ANALYTICAL METHODS
(2017)
Article
Biochemical Research Methods
Hossein Ali Mashayekhi, Faezeh Khalilian
JOURNAL OF CHROMATOGRAPHIC SCIENCE
(2016)
Article
Chemistry, Analytical
Faezeh Khalilian, Setareh Ahmadian
JOURNAL OF SEPARATION SCIENCE
(2016)
Article
Chemistry, Multidisciplinary
Faezeh Khalilian, Mohammad Rezaee
JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY
(2016)
Article
Food Science & Technology
Mohammad Rezaee, Faezeh Khalilian
FOOD ANALYTICAL METHODS
(2018)
Article
Chemistry, Multidisciplinary
Faezeh Khalilian, Mohammad Rezaee
BULLETIN OF THE CHEMICAL SOCIETY OF ETHIOPIA
(2014)
Article
Chemistry, Multidisciplinary
Faezeh Khalilian, Mohammad Rezaee
JOURNAL OF THE CHINESE CHEMICAL SOCIETY
(2014)
Article
Chemistry, Analytical
Mohammad Rezaee, Mohammad Reza Pourjavid, Mostafa Tajik, Faezeh Khalilian
JOURNAL OF ANALYTICAL CHEMISTRY
(2020)
Article
Chemistry, Analytical
Faezeh Khalilian, Mohammad Farajvand
ANALYTICAL AND BIOANALYTICAL CHEMISTRY RESEARCH
(2017)
Article
Chemistry, Multidisciplinary
Abolfazl Semnani, Hedayat Haddadi, Mohammad Rezaee, Faezeh Khalilian
SOUTH AFRICAN JOURNAL OF CHEMISTRY-SUID-AFRIKAANSE TYDSKRIF VIR CHEMIE
(2015)