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Ghaderi A, Khoshakhlagh AH, Gruszecka-Kosowska A, Askari-Lemjiri F, Alemi F, Molavi N, Hazegh P, Farokhi B, Dehkohneh SG, Ghoreishi FS. Heavy metal concentrations and clinical symptoms in patients diagnosed with schizophrenia related to cigarette smoking. Sci Rep 2024; 14:15074. [PMID: 38956098 PMCID: PMC11219874 DOI: 10.1038/s41598-024-64333-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Accepted: 06/07/2024] [Indexed: 07/04/2024] Open
Abstract
In our study, blood concentrations of lead (Pb), arsenic (As), and cadmium (Cd) and urine concentrations of thallium (Tl) were measured together with related symptoms of heavy metal poisoning in cigarette smoking volunteers diagnosed with schizophrenia, in cigarette smokers not diagnosed with schizophrenia, and in the control group of non-smokers and not diagnosed with schizophrenia volunteers. Our study was performed on 171 volunteers divided into the following subgroups: patients diagnosed with schizophrenia with at least 1 year of continuous cigarette smoking experience (56 participants), cigarette smokers not diagnosed with schizophrenia with at least one year of continuous smoking experience (58), and control group (not diagnosed with schizophrenia and non-smoking volunteers) (57). Smoking durations of cigarette smokers diagnosed with schizophrenia and cigarette smokers not diagnosed with schizophrenia are not similar (p = 0.431). Blood Pb, As, and Cd concentrations and urine Tl concentrations were the highest in the subgroup of cigarette smokers not diagnosed with schizophrenia, followed by the subgroup of cigarette smokers diagnosed with schizophrenia, and the control group. Only blood Pb concentrations were significantly higher (probability value p < 0.05) in the group of cigarette smokers not diagnosed with schizophrenia (5.16 μg/dL), comparing to the group of cigarette smokers diagnosed with schizophrenia (3.83 μg/dL) and to the control group (3.43 μg/dL). Blood Cd and As concentrations and urine Tl concentrations were significantly higher (p < 0.05) in cigarette smokers not diagnosed with schizophrenia than in the control group. The results revealed a statistically significant positive correlation (p < 0.001) in the cigarette smokers in the schizophrenia diagnosed group between blood Pb, blood As, and urine Tl concentrations and the duration of cigarette smoking.
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Affiliation(s)
- Amir Ghaderi
- Department of Addiction Studies, School of Medical and Clinical Research Development Unit-Matini/Kargarnejad Hospital, Kashan University of Medical Sciences, Kashan, Iran
| | - Amir Hossein Khoshakhlagh
- Department of Occupational Health Engineering, School of Health, Kashan University of Medical Sciences, Kashan, Iran.
| | - Agnieszka Gruszecka-Kosowska
- Faculty of Geology, Geophysics, and Environmental Protection, Department of Environmental Protection, AGH University of Krakow, Al. Mickiewicza 30, 30-059, Krakow, Poland
| | | | - Fatemeh Alemi
- Department of Toxicology and Pharmacology, School of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
| | - Nader Molavi
- Department of Addiction Studies, School of Medical and Clinical Research Development Unit-Matini/Kargarnejad Hospital, Kashan University of Medical Sciences, Kashan, Iran
| | - Pooya Hazegh
- Department of Psychiatry, Kashan University of Medical Sciences, Kashan, Iran
| | - Bahareh Farokhi
- Department of Clinical Psychology, Allameh Tabataba'i University, Tehran, Iran
| | - Somayeh Ghadami Dehkohneh
- Department of Pharmacy, Acharya BM Ready College of Pharmacy, Rajive Gandhi University of Health Sciences, Banglore, Karnataka, India
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Oliveira LA, Santos JLO, Teixeira LSG. Determination of thallium in water samples via solid sampling HR-CS GF AAS after preconcentration on chromatographic paper. Talanta 2024; 266:124945. [PMID: 37478764 DOI: 10.1016/j.talanta.2023.124945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 06/07/2023] [Accepted: 07/12/2023] [Indexed: 07/23/2023]
Abstract
A method for determining thallium in water samples via solid sampling high-resolution continuum source graphite furnace atomic absorption spectrometry (SS HR-CS GF AAS) after preconcentration using chromatographic filter paper as a solid support was proposed. The effects of pH, stirring time, and sample volume in the analyte preconcentration step were studied. The presence of potential interferences in the sample and the type of masking agent were also examined. In the proposed procedure, the sample was placed in contact with the solid phase in a polypropylene tube, and after stirring for 3 min, thallium determination was performed via HR-CS GF AAS directly on chromatographic filter paper. A preconcentration factor of 55, a precision of 9.4% (n = 10; 10 μg L-1), a limit of detection of 0.018 μg L-1, and a limit of quantification of 0.059 μg L-1 were achieved. Analyte addition and recovery tests were performed, and the results ranged from 91% to 110%. The accuracy of the method was evaluated by analyzing a water reference material. The procedure was used to determine thallium in water samples collected in Barreiras, Bahia, Brazil. The results were compared with those obtained using inductively coupled plasma‒mass spectrometry (ICP‒MS). Thallium concentrations in the analyzed samples ranged from <0.059 to 0.80 μg L-1.
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Affiliation(s)
- Luana A Oliveira
- Universidade Federal da Bahia, Instituto de Química, Departamento de Química Analítica, Campus Universitário de Ondina, 40170-115, Salvador, Bahia, Brazil
| | - Jorge L O Santos
- Universidade Federal Do Oeste da Bahia, Centro Multidisciplinar de Bom Jesus da Lapa, 47600-000, Bom Jesus da Lapa, Bahia, Brazil
| | - Leonardo S G Teixeira
- Universidade Federal da Bahia, Instituto de Química, Departamento de Química Analítica, Campus Universitário de Ondina, 40170-115, Salvador, Bahia, Brazil; INCT de Energia e Ambiente, Universidade Federal da Bahia, Campus Universitário de Ondina, 40170-115, Salvador, Bahia, Brazil.
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Jin X, Baghayeri M, Nodehi M, Koshki MS, Ramezani A, Fayazi M, Xu Y, Hua Z, Lei Y, Makvandi P. Evaluation of thallium ion as an effective ion in human health using an electrochemical sensor. ENVIRONMENTAL RESEARCH 2023; 238:117026. [PMID: 37659642 DOI: 10.1016/j.envres.2023.117026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 08/14/2023] [Accepted: 08/29/2023] [Indexed: 09/04/2023]
Abstract
Exposure to thallium (Tl), a noxious heavy metal, poses significant health risks to both humans and animals upon ingestion. Therefore, monitoring Tl levels in the environment is crucial to prevent human exposure and reduce the risk of developing severe health problems. This paper presents the development of a highly sensitive Tl ions sensor through surface modification of a glassy carbon electrode with a nanocomposite comprising MnO2 magnetic sepiolite and multi-walled carbon nanotubes (MnO2@Fe3O4/Sep/MWCNT/GCE). Multiple methodologies were employed to assess the performance of the newly developed sensor. By employing square wave anodic stripping voltammetry (SWASV) to optimize the measurement conditions, notable enhancements were observed in the stripping peak currents of Tl (I) on the MnO2@Fe3O4/Sep/MWCNT/GCE surface. The effectiveness of the nanocomposite in facilitating electron transfer between the Tl (I) ions (guest) and the electrode (host) was demonstrated from the enhanced signals observed at the different modified electrode surfaces under optimal conditions. The developed sensor displayed a wide linear range of 0.1-1500 ppb for Tl (I) and a low detection limit of 0.03 ppb for Tl (I). It was found to be selective for Tl (I) ions while remaining unaffected by interfering non-target ions in the presence of the target ions. Despite its simple preparation procedure, the modified electrode exhibited high stability and excellent reproducibility for measuring Tl (I). The outstanding electroanalytical performances of the MnO2@Fe3O4/Sep/MWCNT/GCE electrode enabled its successful use as an ultrasensitive sensor for determining trace amounts of Tl in environmental samples.
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Affiliation(s)
- Xuru Jin
- Department of Respiratory and Critical Care Medicine, NanoBioMedical Group, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou, China
| | - Mehdi Baghayeri
- Department of Chemistry, Faculty of Science, Hakim Sabzevari University, PO. Box 397, Sabzevar, Iran.
| | - Marzieh Nodehi
- Department of Chemistry, Faculty of Science, Hakim Sabzevari University, PO. Box 397, Sabzevar, Iran.
| | - Mina-Sadat Koshki
- Department of Chemistry, Faculty of Science, Hakim Sabzevari University, PO. Box 397, Sabzevar, Iran
| | - Ali Ramezani
- Department of Chemistry, Faculty of Science, Hakim Sabzevari University, PO. Box 397, Sabzevar, Iran
| | - Maryam Fayazi
- Department of Environment, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, Iran
| | - Yi Xu
- Department of Science & Technology, Department of Urology, NanoBiomedical Group, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou, China
| | - Zhidan Hua
- Department of Respiratory and Critical Care Medicine, NanoBioMedical Group, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou, China
| | - Ying Lei
- Department of Respiratory and Critical Care Medicine, NanoBioMedical Group, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou, China
| | - Pooyan Makvandi
- The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, 324000, Quzhou, Zhejiang, China; School of Engineering, Institute for Bioengineering, The University of Edinburgh, Edinburgh, EH9 3JL, UK.
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Ghaderi A, Khoshakhlagh AH, Irani M, Ghaseminezhad A, Gautam P, Mirzaei N, Banafshe HR, Nemati B, Ghalerashidi HM. Examining of Heavy Metal Concentrations in Hookah Smokers. Biol Trace Elem Res 2022; 201:3185-3192. [PMID: 36138261 DOI: 10.1007/s12011-022-03422-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 09/12/2022] [Indexed: 11/02/2022]
Abstract
Hookah smoking has been spreading around the world, especially among young adults. The current study aimed to investigate the concentration of heavy metals and elements and clinical symptoms in hookah users in comparison with non-users. To the best of our knowledge, the present study represents the first scientific contribution indicating levels of several heavy metals and elements in urine and blood in hookah users and non-users as well as evaluating clinical symptoms. This research was implemented in Iran among 100 males divided into two groups (50/group): control and hookah users. Heavy metal contamination (lead, cadmium, arsenic, thallium, zinc, and copper) in blood and urine samples was assayed by graphite furnace atomic absorption spectrometry (GFAAS). Duration of hookah use was 7.06 ± 4.57 years. The mean ± SD of lead, arsenic, and thallium concentrations was 3.77 ± 2.22, 8.50 ± 4.34, and 4.22 ± 2.69 μg/L. The mean levels of blood for lead, arsenic, and urinary thallium in hookah users are significantly higher than the control group (p < 0.05). The most frequent clinical symptoms in hookah smokers were constipation and fatigue. Findings from this study might guide the development of policies to regulate hookah smoking and prevent adverse health effects associated with hookah smoking.
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Affiliation(s)
- Amir Ghaderi
- Department of Addiction Studies, School of Medical, Kashan University of Medical Sciences, Kashan, Iran
- Clinical Research Development Unit-Matini/Kargarnejad Hospital, Kashan University of Medical Sciences, Kashan, Iran
| | - Amir Hossein Khoshakhlagh
- Department of Occupational Health Engineering, School of Health, Kashan University of Medical Sciences, Kashan, Iran.
| | - Masoome Irani
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Azam Ghaseminezhad
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Prem Gautam
- Department of Epidemiology, Robert Stempel College of Public Health, Florida International University, Miami, FL, USA
| | - Nezam Mirzaei
- Social Determinants of Health (SDH) Research Center, Department of Environment Health, Kashan University of Medical Sciences, Kashan, Iran
| | - Hamid Reza Banafshe
- Physiology Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | - Bahador Nemati
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
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López-García I, Muñoz-Sandoval MJ, Hernández-Córdoba M. Dispersive micro-solid phase extraction with a magnetic nanocomposite followed by electrothermal atomic absorption measurement for the speciation of thallium. Talanta 2021; 228:122206. [PMID: 33773710 DOI: 10.1016/j.talanta.2021.122206] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 01/13/2021] [Accepted: 02/06/2021] [Indexed: 10/22/2022]
Abstract
A magnetic dispersive micro-solid phase extraction procedure for the determination of the thallium content in waters is presented. The incorporation in the sample (10 mL) of a small amount of graphene-Fe3O4 composite (3.6 mg) in the presence of 10-4 mol L-1 Aliquat 336 at pH 2 results in the complete retention of both thallium(I) and thallium(III). After separation with a magnet, the micro-solid phase recovered is treated with 0.05 mL of a 0.1 mol L-1 sodium ethylenediaminetetracetate solution at pH 9, and the supernatant obtained after application of the magnet is introduced in the electrothermal atomizer of an atomic absorption spectrometer to obtain the signal corresponding to the total thallium content. For speciation, the trivalent form in a second sample aliquot is separated by means of a liquid-liquid extraction stage with chloroform and methyl trioctyl ammonium in the presence of bromide, and the signal corresponding to the monovalent form is obtained, the concentration of thallium(III) being obtained by difference. The enrichment factor is 185, which permits a detection limit as low as 0.01 μg L-1 of the analyte to be achieved. The relative standard deviation for five measurements at the 0.1 μg L-1 thallium level is below 5%. The reliability of the procedure is verified by analysing five certified reference samples for which speciation data are also given.
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Affiliation(s)
- Ignacio López-García
- Department of Analytical Chemistry, Faculty of Chemistry, Regional Campus of International Excellence "Campus Mare-Nostrum", University of Murcia, E-30100 Murcia, Spain.
| | - María J Muñoz-Sandoval
- Department of Analytical Chemistry, Faculty of Chemistry, Regional Campus of International Excellence "Campus Mare-Nostrum", University of Murcia, E-30100 Murcia, Spain
| | - Manuel Hernández-Córdoba
- Department of Analytical Chemistry, Faculty of Chemistry, Regional Campus of International Excellence "Campus Mare-Nostrum", University of Murcia, E-30100 Murcia, Spain
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Hua Y, Li JY, Min H, Wu XH, Cui XB, Chen YJ, Lian HZ, Sheng D. Hybrid monolith assisted magnetic ion-imprinted polymer extraction coupled with ICP-MS for determination of trace Au(III) in environmental and mineral samples. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105210] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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7
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Chitosan magnetic hydrogel based ligandless magnetic solid phase extraction for the accurate and sensitive determination of thallium by slotted-quartz tube flame atomic absorption spectrophotometry with matrix matching calibration strategy. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105231] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Molavi N, Ghaderi A, Banafshe HR. Determination of thallium in urine, blood, and hair in illicit opioid users in Iran. Hum Exp Toxicol 2020; 39:808-815. [PMID: 32009467 DOI: 10.1177/0960327120903487] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
CONTEXT Heavy metals, including thallium and lead, are introduced to illicit drug users' body as a result of using drugs such as cocaine and heroin. OBJECTIVE This study aimed to determine urine, blood, and hair thallium (Tl) concentrations in illicit opioid users along with the relevant clinical signs and symptoms consistent with thallotoxicosis and to compare them with the corresponding variables in the control non-opioid user group. MATERIALS AND METHODS This case-control study was conducted on 50 illicit opioid users who had abused opioids continuously for more than a year, referred to Amirie Drug Abuse Treatment Clinic in Kashan, Iran. The control group included 50 non-opioid users. Thallium concentrations in urine, blood, and hair were assessed in both groups (n = 100) using electrothermal (graphite furnace) atomic absorption spectrometry (ET AAS, GF AAS). RESULTS In the studied group, the median (interquartile range) concentrations of thallium in urine, blood, and hair were 54.8 ± 79.9 μg/L, 14.5 ± 11.1 μg/L, and 5.4 ± 3.7 µg/g, respectively; these values were 4.8 ± 5.2 μg/L, 2.5 ± 2.4 μg/L, and 1.4 ± 1.1 µg/g, respectively, in the control group. There were significant differences in urine, blood, and hair thallium concentrations between the study group and the control group (p < 0.001). There were significant correlations between duration of illicit opioid use and urine thallium concentrations (r = 0.394, p = 0.005) and hair thallium concentrations (r = 0.293, p = 0.039), but not with blood thallium concentrations (r = 0.246, p = 0.085). Urine and blood thallium concentrations of illicit opioid users with clinical signs and symptoms consistent with thallotoxicosis of weakness (p = 0.01), depression (p = 0.03), and headache (p = 0.03) were higher than users without these problems. DISCUSSION AND CONCLUSION The results of the study showed that thallium concentrations in urine, blood, and hair in illicit opioid users were significantly higher than the comparable concentrations in the control group. This can be due to the use of illicit opioids adulterated with thallium. Also, this study showed long-term illicit opioid use may lead to thallium exposure. In addition, cigarette smoking was associated with increased thallium exposure.
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Affiliation(s)
- N Molavi
- Department of Addiction Studies, School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
| | - A Ghaderi
- Department of Addiction Studies, School of Medicine, Kashan University of Medical Sciences, Kashan, Iran.,Clinical Research Development Unit-Matini/Kargarnejad Hospital, Kashan University of Medical Sciences, Kashan, Iran
| | - H R Banafshe
- Department of Addiction Studies, School of Medicine, Kashan University of Medical Sciences, Kashan, Iran.,Department of Pharmacology, School of Medicine, Kashan University of Medical Sciences, Kashan, Iran.,Physiology Research Center, Kashan University of Medical Sciences, Kashan, Iran
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Hassan SSM, Abdelbasir SM, Fathy MA, Amr AEGE, Al-Omar MA, Kamel AH. Gold Plate Electrodes Functionalized by Multiwall Carbon Nanotube Film for Potentiometric Thallium(I) Detection. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E1160. [PMID: 31416119 PMCID: PMC6723907 DOI: 10.3390/nano9081160] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Revised: 07/20/2019] [Accepted: 08/01/2019] [Indexed: 11/17/2022]
Abstract
Solid-contact potentiometric ion-selective electrodes (SC-ISEs) for thallium determination have been designed using multiwall carbon nanotubes (MWCNTs) as the ion-to-electron transducer. Dispersed MWCNTs were drop-casted over a gold plate electrode. Two different crown ethers were used in the sensing membrane for the recognition of thallium (I). Sensorsbased on dibenzo-18-crown-6 (DB18C6) as a neutral carrier and NaTPB as an anionic additive exhibited a near Nernstian response of 57.3 mV/decade towards Tl+ ions over the activity range 4.5 × 10-6-7.0 × 10-4 M, with a limit of detection of 3.2 × 10-7 M. The time required to achieve 95% of the steadyequilibrium potential was <10 s. The complex formation constant (log βML) between dibenzo-18-crown-6 and thallium (I) (i.e., 5.99) was measured using the sandwich membrane technique. The potential response was pH independent over the range 3.0-9.5. The introduction of MWCNTs as an electron-ion-transducer layer between gold plate and the sensing membrane lead to a smaller membrane resistance and a large double layer capacitance, which was proven using impedance spectra and chronopotentiometry (i.e., 114.9 ± 12 kΩ, 52.1 ± 3.3 pF, 200 ± 13.2 kΩ, and 50 ± 4.2 µF). Additionally, reduction ofthe water layer between the sensing membrane and the underlying conductor wastested. Thus, it is clear that MWCNTs can be used as a transducing layer in SC-ISEs. The proposed sensor was introduced as an indicator electrode for potentiometric titration of single and ternary mixtures of I-, Br-, and S2- anions.
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Affiliation(s)
- Saad S M Hassan
- Chemistry Department, Faculty of Science, Ain Shams University, Abbasia 11566, Cairo, Egypt.
| | - Sabah M Abdelbasir
- Electro Chemical Treatment Dept., Central Metallurgical Research and Development Institute (CMRDI), P.O. Box 87, Helwan 11421, Cairo, Egypt
| | - M Abdelwahab Fathy
- Chemistry Department, Faculty of Science, Ain Shams University, Abbasia 11566, Cairo, Egypt
| | - Abd El-Galil E Amr
- Pharmaceutical Chemistry Department, Drug Exploration & Development Chair (DEDC), College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia.
- Applied Organic Chemistry Department, National Research Center, Dokki 12622, Giza, Egypt.
| | - Mohamed A Al-Omar
- Pharmaceutical Chemistry Department, Drug Exploration & Development Chair (DEDC), College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Ayman H Kamel
- Chemistry Department, Faculty of Science, Ain Shams University, Abbasia 11566, Cairo, Egypt.
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Selective Preconcentration of Gold from Ore Samples. Int J Anal Chem 2018; 2018:7503202. [PMID: 30275833 PMCID: PMC6157102 DOI: 10.1155/2018/7503202] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 08/02/2018] [Accepted: 08/27/2018] [Indexed: 11/17/2022] Open
Abstract
A simple and selective method has been developed for preconcentration of gold in ore samples. The method is based on use of N, N-diethyl-N'-benzoylthiourea (DEBT) as selective chelating agent and Amberlite XAD-16 as solid sorbent. Sorption behavior of gold with DEBT impregnated resin under optimized conditions has been studied in batch process. The gold ion capacity of the impregnated resin is calculated as 33.48 mg g−1 resin (0.17 mmol g−1 resin). The selective preconcentration of metal was examined using gold chelates prepared in column process under optimized conditions: pH, flow rate, volume of sample solution, nature of eluent, flow rate, and volume of eluent. Under optimum conditions, gold ions at the concentration of 0.015 μg mL−1 with a preconcentration factor of 6.7 have been determined by flame atomic absorption spectrometry (FAAS). The accuracy of the proposed method was validated by the analysis of a Cu-ore (semi-certified) supplied by CMC (Cyprus Mining Company, North Cyprus) and a certified reference material, Gold Ore (MA-1b Canmet-MMSL). Satisfactory results were obtained with a RSD of 7.6%. The highly selective proposed method does not require any interference elimination process.
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Arpa Ç, Aridaşir I. A Method to Determination of Lead Ions in Aqueous Samples: Ultrasound-Assisted Dispersive Liquid-Liquid Microextraction Method Based on Solidification of Floating Organic Drop and Back-Extraction Followed by FAAS. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2018; 2018:8951028. [PMID: 30155342 PMCID: PMC6093068 DOI: 10.1155/2018/8951028] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 07/04/2018] [Indexed: 06/08/2023]
Abstract
Ultrasound-assisted dispersive liquid-liquid microextraction method based on solidification of floating organic drop and back-extraction (UA-DLLME-SFO-BE) technique was proposed for preconcentration of lead ions. In this technique, two SFODME steps are applied in sequence. The classical SFODME was applied as the first step and then the second (back-extraction) step was applied. For the classical SFODME, Pb ions were complexed with Congo red at pH 10.0 and then extracted into 1-dodecanol. After this stage, a second extraction step was performed instead of direct determination of the analyte ion in the classical method. For this purpose, the organic phase containing the extracted analyte ions is treated with 1.0 mol·L-1 HNO3 solution and then exposed to ultrasonication. So, the analyte ions were back-extracted into the aqueous phase. Finally, the analyte ions in the aqueous phase were determined by FAAS directly. Owing to the second extraction step, a clogging problem caused by 1-dodecanol during FAAS determination was avoided. Some parameters which affect the extraction efficiency such as pH, volume of extraction solvent, concentration of complexing agent, type, volume, and concentration of back-extraction solvent, effect of cationic surfactant addition, effect of temperature, and so on were examined. Performed experiments showed that optimum pH was 10.0, 1-dodecanol extraction solvent volume was 75 μL, back-extraction solvent was 500 μL, 1.0 mol·L-1 HNO3, extraction time was 4 min, and extraction temperature was 40°C. Under optimum conditions, the enhancement factor, limit of detection, limit of quantification, and relative standard deviation were calculated as 81, 1.9 μg·L-1, 6.4 μg·L-1, and 3.4% (for 25 μg·L-1 Pb2+), respectively.
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Affiliation(s)
- Çiğdem Arpa
- Chemistry Department, Hacettepe University, Beytepe, 06800 Ankara, Turkey
| | - Itır Aridaşir
- Chemistry Department, Hacettepe University, Beytepe, 06800 Ankara, Turkey
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The separation–preconcentration and determination of ultra-trace gold in water and solid samples by dispersive liquid–liquid microextraction using 4-ethyl-1(2-(4-(4-nitrophenyl)piperazin-1-yl)acetyl)thiosemicarbazide) as chelating agent and flame atomic absorption spectrometry. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2018. [DOI: 10.1007/s13738-018-1333-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Biata NR, Dimpe KM, Ramontja J, Mketo N, Nomngongo PN. Determination of thallium in water samples using inductively coupled plasma optical emission spectrometry (ICP-OES) after ultrasonic assisted-dispersive solid phase microextraction. Microchem J 2018. [DOI: 10.1016/j.microc.2017.10.020] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Solidification of floating organic droplet in dispersive liquid-liquid microextraction as a green analytical tool. Talanta 2017; 170:22-35. [DOI: 10.1016/j.talanta.2017.03.084] [Citation(s) in RCA: 103] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 03/25/2017] [Accepted: 03/26/2017] [Indexed: 01/09/2023]
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Zhou S, Song N, Lv X, Jia Q. Magnetic dual task-specific polymeric ionic liquid nanoparticles for preconcentration and determination of gold, palladium and platinum prior to their quantitation by graphite furnace AAS. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2354-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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16
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Ultra-trace determination of thallium(I) using a nanocomposite consisting of magnetite, halloysite nanotubes and dibenzo-18-crown-6 for preconcentration prior to its quantitation by ET-AAS. Mikrochim Acta 2017. [DOI: 10.1007/s00604-016-2040-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Application of dispersive liquid–liquid–solidified floating organic drop microextraction and ETAAS for the preconcentration and determination of indium. Anal Bioanal Chem 2017; 409:1837-1843. [DOI: 10.1007/s00216-016-0128-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 11/14/2016] [Accepted: 11/30/2016] [Indexed: 10/20/2022]
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18
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Firouzabadi ZD, Shabani AMH, Dadfarnia S, Ehrampoush MH. Preconcentration and speciation of thallium by ferrofluid based dispersive solid phase extraction and flame atomic absorption spectrometry. Microchem J 2017. [DOI: 10.1016/j.microc.2016.10.025] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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19
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de la Calle I, Pena-Pereira F, Lavilla I, Bendicho C. Liquid-phase microextraction combined with graphite furnace atomic absorption spectrometry: A review. Anal Chim Acta 2016; 936:12-39. [DOI: 10.1016/j.aca.2016.06.046] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 06/26/2016] [Accepted: 06/28/2016] [Indexed: 12/19/2022]
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20
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Fayazi M, Ghanei-Motlagh M, Taher MA, Ghanei-Motlagh R, Salavati MR. Synthesis and application of a novel nanostructured ion-imprinted polymer for the preconcentration and determination of thallium(I) ions in water samples. JOURNAL OF HAZARDOUS MATERIALS 2016; 309:27-36. [PMID: 26874309 DOI: 10.1016/j.jhazmat.2016.02.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2015] [Revised: 01/30/2016] [Accepted: 02/01/2016] [Indexed: 06/05/2023]
Abstract
A novel synthesized nanostructured ion-imprinted polymer (IIP) was investigated for the determination of trace amount of thallium(I). For this purpose, the thallium(I) IIP particles were synthesized using methacrylic acid (MAA) as the functional monomer, ethylene glycol dimethacrylate (EGDMA) as the cross-linker, methyl-2-[2-(2-2-[2-(methoxycarbonyl) phenoxy] ethoxyethoxy) ethoxy] benzoate as the chelating agent and 2,2-azobisisobutyronitrile (AIBN) as the initiator. The prepared IIP particles were characterized by field emission scanning electron microscopy (FE-SEM), Fourier transform infrared spectroscopy (FT-IR) and thermo gravimetric analysis (TGA). Various experimental factors such as pH, the amount of IIP particles, sorption and desorption time, sample volume, elution condition, and potentially interfering ions systematically examined. Under the optimum conditions, a sensitive response to Tl(I) within a wide concentration range (0.05-18 μg L(-1)) was achieved. The limit of detection (LOD, 3Sb/m) was 6.3 ng L(-1). The maximum adsorption capacity of the novel imprinted adsorbent for Tl(I) was calculated to be 18.3 mg g(-1). The relative standard deviation (RSD) for eight replicate detections of 0.1 μg L(-1) of thallium(I) was found to be 4.0%. An enrichment factor (EF) of 100 was obtained by this method. The proposed technique was successfully applied to monitoring thallium in different water samples and the certified reference material.
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Affiliation(s)
- M Fayazi
- Young Researchers and Elite Club, Kerman Branch, Islamic Azad University, Kerman, Iran.
| | - M Ghanei-Motlagh
- Young Researchers and Elite Club, Kerman Branch, Islamic Azad University, Kerman, Iran
| | - M A Taher
- Department of Chemistry, Faculty of Sciences, Shahid Bahonar University of Kerman, Kerman, Iran
| | - R Ghanei-Motlagh
- Department of Pathobiology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - M R Salavati
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
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21
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Tereshatov EE, Boltoeva MY, Mazan V, Volia MF, Folden CM. Thallium Transfer from Hydrochloric Acid Media into Pure Ionic Liquids. J Phys Chem B 2016; 120:2311-22. [PMID: 26769597 DOI: 10.1021/acs.jpcb.5b08924] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Pure hydrophobic ionic liquids are known to extract metallic species from aqueous solutions. In this work we have systematically investigated thallium (Tl) extraction from aqueous hydrochloric acid (HCl) solutions into six pure fluorinated ionic liquids, namely imidazolium- and pyrrolidinium-based ionic liquids with bis(trifluoromethanesulfonyl)imide and bis(fluorosulfonyl)-imide anions. The dependence of the Tl extraction efficiency on the structure and composition of the ionic liquid ions, metal oxidation state, and initial metal and aqueous acid concentrations have been studied. Tl concentrations were on the order of picomolar (analyzed using radioactive tracers) and millimolar (analyzed using inductively coupled plasma mass spectrometry). The extraction of the cationic thallium species Tl(+) is higher for ionic liquids with more hydrophilic cations, while for the TlX(z)(3-z) anionic species (where X = Cl(-) and/or Br(-)), the extraction efficiency is greater for ionic liquids with more hydrophobic cations. The highest distribution value of Tl(III) was approximately 2000. An improved mathematical model based on ion exchange and ion pair formation mechanisms has been developed to describe the coextraction of two different anionic species, and the relative contributions of each mechanism have been determined.
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Affiliation(s)
- Evgeny E Tereshatov
- Cyclotron Institute, Texas A&M University , College Station, Texas 77843 United States
| | - Maria Yu Boltoeva
- IPHC, Université de Strasbourg , Strasbourg, 67037 France
- CNRS , Strasbourg, 67037 France
| | - Valerie Mazan
- IPHC, Université de Strasbourg , Strasbourg, 67037 France
- CNRS , Strasbourg, 67037 France
| | - Merinda F Volia
- Cyclotron Institute, Texas A&M University , College Station, Texas 77843 United States
- Department of Nuclear Engineering, Texas A&M University , College Station, Texas 77843 United States
| | - Charles M Folden
- Cyclotron Institute, Texas A&M University , College Station, Texas 77843 United States
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22
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Fayazi M, Taher MA, Afzali D, Mostafavi A, Ghanei-Motlagh M. Synthesis and application of novel ion-imprinted polymer coated magnetic multi-walled carbon nanotubes for selective solid phase extraction of lead(II) ions. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 60:365-373. [DOI: 10.1016/j.msec.2015.11.060] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Revised: 11/14/2015] [Accepted: 11/23/2015] [Indexed: 11/27/2022]
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23
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Al-Saidi HM, El-Bindary AA, El-Sonbati AZ, Abdel-Fadeel MA. Fluorescence enhancement of rhodamine B as a tool for the determination of trace and ultra-trace concentrations of bismuth using dispersive liquid–liquid microextraction. RSC Adv 2016. [DOI: 10.1039/c5ra27764g] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The present work describes a simple, sensitive, selective, and eco-friendly spectrofluorimetric method for bismuth determination in wastewaters and dyed scalp hair.
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Affiliation(s)
- H. M. Al-Saidi
- Department of Chemistry
- University College in Al-Jamoum
- Umm Al-Qura University
- Makkah
- Kingdom of Saudi Arabia
| | - A. A. El-Bindary
- Department of Chemistry
- Faculty of Science
- Damietta University
- Damietta
- Egypt
| | - A. Z. El-Sonbati
- Department of Chemistry
- Faculty of Science
- Damietta University
- Damietta
- Egypt
| | - M. A. Abdel-Fadeel
- Department of Chemistry
- Faculty of Science
- Damietta University
- Damietta
- Egypt
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24
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Hu L, Qian H, Yang X, Li S, Zhang S, Lu R, Zhou W, Gao H. Effervescence-assisted dispersive liquid–liquid microextraction based on the solidification of a floating ionic liquid with a special collection method for the rapid determination of benzoylurea insecticides in water samples. RSC Adv 2016. [DOI: 10.1039/c6ra17889h] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Dispersion liquid–liquid microextraction based on the solidification of a floating ionic liquid.
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Affiliation(s)
- Lu Hu
- Department of Applied Chemistry
- China Agricultural University
- Beijing 100194
- China
| | - Heng Qian
- Department of Applied Chemistry
- China Agricultural University
- Beijing 100194
- China
| | - Xiaoling Yang
- Department of Applied Chemistry
- China Agricultural University
- Beijing 100194
- China
| | - Songqing Li
- Department of Applied Chemistry
- China Agricultural University
- Beijing 100194
- China
| | - Sanbing Zhang
- Department of Applied Chemistry
- China Agricultural University
- Beijing 100194
- China
| | - Runhua Lu
- Department of Applied Chemistry
- China Agricultural University
- Beijing 100194
- China
| | - Wenfeng Zhou
- Department of Applied Chemistry
- China Agricultural University
- Beijing 100194
- China
| | - Haixiang Gao
- Department of Applied Chemistry
- China Agricultural University
- Beijing 100194
- China
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25
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Bahadir Z, Bulut VN, Bektaş H, Soylak M. A sensitive method for the determination of gold and palladium based on dispersive liquid–liquid microextraction combined with flame atomic absorption spectrometric determination using N-(6-morpholin-4-ylpyridin-3-yl)-N′-phenylthiourea. RSC Adv 2016. [DOI: 10.1039/c5ra26575d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A new method for the determination of gold and palladium was developed by dispersive liquid–liquid microextraction separation-preconcentration and flame atomic absorption spectrometry detection.
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Affiliation(s)
| | | | - Hakan Bektaş
- Department of Chemistry
- Giresun University
- Giresun
- Turkey
| | - Mustafa Soylak
- Department of Chemistry
- Faculty of Sciences
- Erciyes University
- Kayseri
- Turkey
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26
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Taher MA, Pourmohammad F, Fazelirad H. Column preconcentration and electrothermal atomic absorption spectrometric determination of rhodium in some food and standard samples. J Sep Sci 2015; 38:4153-8. [DOI: 10.1002/jssc.201500405] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Revised: 09/24/2015] [Accepted: 09/27/2015] [Indexed: 11/12/2022]
Affiliation(s)
- Mohammad Ali Taher
- Department of Chemistry; Shahid Bahonar University of Kerman; Kerman Iran
| | | | - Hamid Fazelirad
- Young Researchers and Elite Club, Kerman Branch; Islamic Azad University; Kerman Iran
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27
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Fazelirad H, Taher MA. Simultaneous column preconcentration of ultra trace amounts of heavy metals with nano-adsorbent in some environmental and biological samples. ENVIRONMENTAL TECHNOLOGY 2015; 37:300-307. [PMID: 26149951 DOI: 10.1080/09593330.2015.1068871] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Accepted: 06/29/2015] [Indexed: 06/04/2023]
Abstract
In the present investigation, multi-walled carbon nanotubes impregnated by 1,4,10,13-tetraoxa-7,16-diazacyclooctadecane were prepared and applied as adsorbent for the simultaneous separation of Bi(III), Cu(II), Cd(II) and Pb(II) ions prior to their determination by electrothermal atomic absorption spectrometry. The following analytical figures of merit were determined for bismuth, copper, cadmium and lead, respectively: enrichment factors of 168, 134, 111 and 146, assay precisions of ±4.6%, ±4.8%, ±5.3% and ±5.0% and detection limits of 11.3, 3.7, 0.5 and 0.3 ng L(-1). The method was successfully applied for the determination of heavy metals in environmental, biological and certified reference materials.
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Affiliation(s)
- Hamid Fazelirad
- a Young Researchers and Elite Club, Kerman Branch , Islamic Azad University , Kerman , Iran
| | - Mohammad Ali Taher
- b Department of Chemistry , Shahid Bahonar University of Kerman , Kerman , Iran
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28
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Viñas P, Campillo N, Andruch V. Recent achievements in solidified floating organic drop microextraction. Trends Analyt Chem 2015. [DOI: 10.1016/j.trac.2015.02.005] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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29
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Cheraghi S, Taher MA, Fazelirad H. Voltammetric determination of silver with a new multi-walled carbon nanotube modified paste electrode. RUSS J ELECTROCHEM+ 2015. [DOI: 10.1134/s1023193514110032] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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30
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Beiraghi A, Shokri M, Seidi S, Godajdar BM. Magnetomotive room temperature dicationic ionic liquid: A new concept toward centrifuge-less dispersive liquid–liquid microextraction. J Chromatogr A 2015; 1376:1-8. [DOI: 10.1016/j.chroma.2014.12.004] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2014] [Revised: 11/29/2014] [Accepted: 12/01/2014] [Indexed: 12/29/2022]
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31
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Ghanei-Motlagh M, Fayazi M, Taher MA, Darezereshki E, Jamalizadeh E, Fayazi R. Novel modified magnetic nanocomposite for determination of trace amounts of lead ions. RSC Adv 2015. [DOI: 10.1039/c5ra20705c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Magnetic solid phase extraction procedure for the determination of Pb(ii) ions.
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Affiliation(s)
| | - M. Fayazi
- Young Researchers and Elite Club
- Islamic Azad University
- Kerman
- Iran
| | - M. A. Taher
- Department of Chemistry
- Faculty of Sciences
- Shahid Bahonar University of Kerman
- Kerman
- Iran
| | - E. Darezereshki
- Mineral Industries Research Center
- Shahid Bahonar University of Kerman
- Kerman
- Iran
| | - E. Jamalizadeh
- Department of Chemistry
- Faculty of Sciences
- Shahid Bahonar University of Kerman
- Kerman
- Iran
| | - R. Fayazi
- Department of Chemistry
- Sirjan Branch
- Islamic Azad University
- Sirjan
- Iran
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32
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Chen S, Zhu S, Lu D. Solidified floating organic drop microextraction for speciation of selenium and its distribution in selenium-rich tea leaves and tea infusion by electrothermal vapourisation inductively coupled plasma mass spectrometry. Food Chem 2014; 169:156-61. [PMID: 25236211 DOI: 10.1016/j.foodchem.2014.07.147] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Revised: 06/25/2014] [Accepted: 07/30/2014] [Indexed: 11/16/2022]
Abstract
Solidified floating organic drop microextraction was combined with electrothermal vapourisation inductively coupled plasma mass spectrometry for Se species in Se-rich tea leaves and tea infusion, including total, suspended, soluble, organic and inorganic Se as well as Se(IV) and Se(VI). Ammonium pyrrolidinedithiocarbamate was used as both chelating reagent and chemical modifier in this study. Se(IV) and Se(VI) were separated at pH range of 2.0-5.0. An enrichment factor of 500 was obtained for Se(IV) from this method. Under the optimum conditions, the detection limits for Se(IV) and Se(VI) were 0.19 and 0.26pgmL(-1), respectively. The relative standard deviations were less than 5.5% (c=0.1ngmL(-1), n=9). This method was applied for Se species, its content and distribution in Se-rich tea leaves and tea infusion with satisfactory results. The recoveries of spike experiments are in the range of 92.2-106%. A certified reference material of tea leaves was analyzed by this method, and the results were in agreement with certified values.
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Affiliation(s)
- Shizhong Chen
- College of Chemical and Environmental Engineering, Wuhan Polytechnic University, 68 Xuefu South Road, Changqing Garden, Wuhan 430023, PR China.
| | - Shengping Zhu
- College of Chemical and Environmental Engineering, Wuhan Polytechnic University, 68 Xuefu South Road, Changqing Garden, Wuhan 430023, PR China
| | - Dengbo Lu
- College of Chemical and Environmental Engineering, Wuhan Polytechnic University, 68 Xuefu South Road, Changqing Garden, Wuhan 430023, PR China
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33
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Taher MA, Daliri Z, Fazelirad H. Simultaneous extraction and preconcentration of copper, silver and palladium with modified alumina and their determination by electrothermal atomic absorption spectrometry. CHINESE CHEM LETT 2014. [DOI: 10.1016/j.cclet.2013.12.025] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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34
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Separation and preconcentration of gold and palladium ions with a carboxylated pillar[5]arene derived sorbent prior to their determination by flow injection FAAS. Mikrochim Acta 2014. [DOI: 10.1007/s00604-014-1229-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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35
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Taher MA, Jandaghi N, Fazelirad H, Ashkenani H. Application of nanoclay for preconcentration of ultra trace amounts of palladium in environmental samples prior to its determination by ETAAS. ENVIRONMENTAL MONITORING AND ASSESSMENT 2014; 186:1987-1997. [PMID: 24234224 DOI: 10.1007/s10661-013-3512-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Accepted: 10/23/2013] [Indexed: 06/02/2023]
Abstract
In the present work, a batch preconcentration technique using nanoclay with 5-(4-dimethylaminobenzylidene)rhodanine coupled with electrothermal atomic absorption spectrometry was developed for the separation and determination of trace amounts of palladium. In this method, the sample solution was stirred with nanoclay as an adsorbent. Then, adsorbed palladium was subsequently eluted with HCl in acetone (1.5 mol L−1) and, finally, this eluate was injected to electrothermal atomic absorption spectrometry. Under the optimum conditions, the limit of detection and linear dynamic range were found to be 2.6 and 10.0–133 ng L−1 (in original solution), respectively. Furthermore, the enrichment factor and relative standard deviation of seven replicate determinations were 148 and ±5.1 %, respectively. This suggested method is simple, selective and sensitive and can be applied to the extraction and determination of palladium in water, tea leaves, synthetic sample and certified reference material with satisfactory results.
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36
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Preconcentration of ultra-trace amounts of iron and antimony using ion pair solid phase extraction with modified multi-walled carbon nanotubes. Mikrochim Acta 2014. [DOI: 10.1007/s00604-014-1169-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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37
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Speciation of antimony(III) and antimony(V) by electrothermal atomic absorption spectrometry after ultrasound-assisted emulsification of solidified floating organic drop microextraction. Talanta 2013; 115:814-8. [DOI: 10.1016/j.talanta.2013.06.057] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2013] [Revised: 06/23/2013] [Accepted: 06/28/2013] [Indexed: 11/21/2022]
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38
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Andruch V, Burdel M, Kocúrová L, Šandrejová J, Balogh IS. Application of ultrasonic irradiation and vortex agitation in solvent microextraction. Trends Analyt Chem 2013. [DOI: 10.1016/j.trac.2013.02.006] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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39
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Cheraghi S, Taher MA, Fazelirad H. Voltammetric sensing of thallium at a carbon paste electrode modified with a crown ether. Mikrochim Acta 2013. [DOI: 10.1007/s00604-013-1038-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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40
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Delgado-Povedano M, Luque de Castro M. Ultrasound-assisted extraction and in situ derivatization. J Chromatogr A 2013; 1296:226-34. [DOI: 10.1016/j.chroma.2013.04.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2013] [Revised: 04/01/2013] [Accepted: 04/02/2013] [Indexed: 10/27/2022]
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