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Ilbeigi V, Valadbeigi Y, Slováková L, Matejčík Š. Solid Phase Microextraction-Multicapillary Column-Ion Mobility Spectrometry (SPME-MCC-IMS) for Detection of Methyl Salicylate in Tomato Leaves. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:15593-15601. [PMID: 36459422 DOI: 10.1021/acs.jafc.2c05570] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Methyl salicylate (MeSA) is a plant-signaling molecule that plays an essential role in the regulation of plant responses to biotic and abiotic pathogens. In this work, solid phase microextraction (SPME) and a multicapillary column (MCC) are coupled to ion mobility spectrometry (IMS) to detect MeSA in tomato leaves. The SPME-MCC-IMS method provides two-dimensional (2D) separation by both MCC and IMS, based on the retention and drift times. The effect of the IMS polarity on the separation efficiency of MCCs was also investigated. In the positive polarity, ionization of MeSA resulted in [MeSA + H]+ formation while, in the negative, deprotonated ions, [MeSA - H]-, and the O2- adduct ion, [MeSA + O2]-, were formed. In the real sample analysis, the negative polarity operation resulted in the suppression of many matrix molecules and thus in the reduction of interferences. Four different SPME fibers were used for head space analysis, and four MCC columns were investigated. In the negative polarity, complete separation was achieved for all of the MCCs columns. The limits of detection (LODs) of 0.1 μg mL-1 and linear range of 0.25-12 μg mL-1 were obtained for the measurement of MeSA in a standard solution (H2O/CH3OH, 50:50) by the SPME-IMS method with a 5 min extraction time using an SPME with a PDMS fiber, in the negative mode of IMS. The MeSA contents of fresh tomato leaves were determined as 1.5-9.8 μg g-1, 24-96 h after inoculation by tomato mosaic ringspot virus (ToRSV).
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Affiliation(s)
- Vahideh Ilbeigi
- Department of Experimental Physics, Comenius University, Mlynská dolina F2, 842 48 Bratislava, Slovakia
| | - Younes Valadbeigi
- Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin 34148-96818, Iran
| | - L'udmila Slováková
- Department of Plant Physiology, Faculty of Natural Sciences, Mlynská dolina, Ilkovičova 6, 842 15 Bratislava 4, Slovakia
| | - Štefan Matejčík
- Department of Experimental Physics, Comenius University, Mlynská dolina F2, 842 48 Bratislava, Slovakia
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Singhaal R, Tashi L, Devi S, Sheikh HN. Hybrid photoluminescent material from lanthanide fluoride and graphene oxide with strong luminescence intensity as a chemical sensor for mercury ions. NEW J CHEM 2022. [DOI: 10.1039/d2nj00250g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, we employed NaxLiyGdF4:Tb3+@PMA@Phen@GO nanocomposite as chemical sensor for selective and sensitive luminescence sensing of toxic Hg2+ metal ion.
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Affiliation(s)
- Richa Singhaal
- Department of Chemistry, University of Jammu, Baba Sahib Ambedkar Road, Jammu, 180006, India
| | - Lobzang Tashi
- Department of Chemistry, University of Jammu, Baba Sahib Ambedkar Road, Jammu, 180006, India
| | - Swaita Devi
- Department of Chemistry, University of Jammu, Baba Sahib Ambedkar Road, Jammu, 180006, India
| | - Haq Nawaz Sheikh
- Department of Chemistry, University of Jammu, Baba Sahib Ambedkar Road, Jammu, 180006, India
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Xia X, Yang E, Du X, Cai Y, Chang F, Gao D. Nanostructured Shell-Layer Artificial Antibody with Fluorescence-Tagged Recognition Sites for the Trace Detection of Heavy Metal Ions by Self-Reporting Microsensor Arrays. ACS APPLIED MATERIALS & INTERFACES 2021; 13:57981-57997. [PMID: 34806864 DOI: 10.1021/acsami.1c17762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Herein, a strategy for a metal ion-imprinted artificial antibody with recognition sites tagged by fluorescein was carried out to construct the selective sites with a sensitive optical response signal to the specific metal ion. The synthesized silica nanoparticles were modified by the derivative residue group of 3-aminopropyltriethoxysilane conjugated with a 4-chloro-7-nitro-1,2,3-benzoxadiazole (NBD-Cl) molecule through the hydrolysis and condensation reactions. The as-prepared silica nanoparticles were encapsulated by metal ion (Cu2+, Cd2+, Hg2+, and Pb2+)-imprinted polymers with nanostructured layers through the copolymerization of ethyl glycol dimethyl methacrylate (EGDMA) as a cross-linker, AIBN as an initiator, metal ions as template molecules, AA as a functional monomer, and acetonitrile as a solvent. The layers of molecular imprinted polymers (MIPs) with a core-shell structure removed template molecules by EDTA-2Na to retain the cavities and spatial sizes to match the imprinted metal ions. The microsensor arrays were achieved by the self-assembly technique of SiO2@MIP nanoparticles on the etched silicon wafer with regular dot arrays. The nanostructured-shell layers with fluorescence-tagged recognition sites rebound metal ions by the driving force of concentration difference demonstrates the high selective recognition and sensitive detection to heavy metal ions through the decline of fluorescence intensity. The LOD concentration for four metal ions is down to 10-9 mol·L-1. The method will provide biomimetic synthesis, analyte screen, and detection of highly dangerous materials in the environment for theoretical foundation and technological support.
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Affiliation(s)
- Xiaoxiao Xia
- Department of Biology Engineering, School of Biology, Food and Environment Engineering, Hefei University, Hefei 230601, Anhui, China
| | - En Yang
- Department of Biology Engineering, School of Biology, Food and Environment Engineering, Hefei University, Hefei 230601, Anhui, China
| | - Xianfeng Du
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, Anhui, China
| | - Yue Cai
- Department of Biology Engineering, School of Biology, Food and Environment Engineering, Hefei University, Hefei 230601, Anhui, China
| | - Fei Chang
- Department of Biology Engineering, School of Biology, Food and Environment Engineering, Hefei University, Hefei 230601, Anhui, China
| | - Daming Gao
- Department of Chemical Engineering, School of Energy, Materials and Chemical Engineering, Hefei University, Hefei 230601, Anhui, China
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Su K, Huang X, Wei W, Zeng X, Xiang S, Yang H. A ready-to-use fluorescence probe of Pd 2+ in water: novel tricyclic heterocyclic base on 1,3,4-oxadiazole. LUMINESCENCE 2021; 36:1690-1696. [PMID: 34173312 DOI: 10.1002/bio.4110] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 06/02/2021] [Accepted: 06/12/2021] [Indexed: 12/19/2022]
Abstract
A ready-to-use hetero-tricyclic compound, 5,5'-(furan-2,5-diyl) bis (1,3,4- oxadiazol-2-amine) (5), was synthesized with a good yield; it has an suitable fluorescence characteristic and research founded that it can respond to trace Pd2+ in water at a normal pH range. A fluorescence titration revealed the detection limit for Pd2+ was as low as 3.97 × 10-9 M. Density-functional theory calculation using Guassian09 implied that the breakage of conjugation and coplanarity of compound 5 led to fluorescence quenching. Compound 5 could be applied as a chemical probe to detect trace amounts of Pd2+ with good accuracy, fast response time, excellent selectivity, and high sensitivity. FT-IR, NMR, and MS were used to characterize the chemical structure of compound 5.
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Affiliation(s)
- Ke Su
- Department of Chemistry and Chemical Engineering, Sichuan University of Arts and Science, Dazhou, Sichuan, China.,Key Laboratory of Exploitation and Study of Distinctive Plants in Education Department of Sichuan Province, Dazhou, Sichuan, China
| | - Xiaomei Huang
- Department of Chemistry and Chemical Engineering, Sichuan University of Arts and Science, Dazhou, Sichuan, China
| | - Wei Wei
- Key Laboratory of Exploitation and Study of Distinctive Plants in Education Department of Sichuan Province, Dazhou, Sichuan, China
| | - Xiaotong Zeng
- Department of Chemistry and Chemical Engineering, Sichuan University of Arts and Science, Dazhou, Sichuan, China
| | - Siyu Xiang
- School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, China
| | - Haijun Yang
- School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, China
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Valadbeigi Y, Ilbeigi V, Mamozai W, Soleimani M. Rapid and simple determination of gabapentin in urine by ion mobility spectrometry. J Pharm Biomed Anal 2021; 197:113980. [PMID: 33636645 DOI: 10.1016/j.jpba.2021.113980] [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: 10/18/2020] [Revised: 02/12/2021] [Accepted: 02/12/2021] [Indexed: 10/22/2022]
Abstract
Gabapentin is a pharmacological agent used in the treatment of epileptic seizures. In this work, a fast method is proposed for determination of gabapentin in urine by ion mobility spectrometry (IMS) without any extraction and derivatization. ZnCl2 was used as an effective protein precipitating reagent to remove the urine proteins. It was found that urea content of urine interferes with detection of gabapentin by IMS. By applying a delay on the carrier gas flow after injection of the sample, we could solve the urea interference to achieve gabapentin signal recovery of ∼70% in urine relative to that in water.
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Affiliation(s)
- Younes Valadbeigi
- Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin, Iran.
| | - Vahideh Ilbeigi
- TOF Tech. Pars Company, Isfahan Science & Technology Town, Isfahan, Iran
| | - Wafiullah Mamozai
- Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin, Iran
| | - Majid Soleimani
- Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin, Iran
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Alikord M, Mohammadi A, Kamankesh M, Shariatifar N. Food safety and quality assessment: comprehensive review and recent trends in the applications of ion mobility spectrometry (IMS). Crit Rev Food Sci Nutr 2021; 62:4833-4866. [PMID: 33554631 DOI: 10.1080/10408398.2021.1879003] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Ion mobility spectrometry (IMS) is an analytical separation and diagnostic technique that is simple and sensitive and a rapid response and low-priced technique for detecting trace levels of chemical compounds in different matrices. Chemical agents and environmental contaminants are successfully detected by IMS and have been recently considered to employ in food safety. In addition, IMS uses stand-alone or coupled analytical diagnostic tools with chromatographic and spectroscopic methods. Scientific publications show that IMS has been applied 21% in the pharmaceutical industry, 9% in environmental studies and 13% in quality control and food safety. Nevertheless, applications of IMS in food safety and quality analysis have not been adequately explored. This review presents the IMS-related analysis and focuses on the application of IMS in food safety and quality. This review presents the important topics including detection of traces of chemicals, rate of food spoilage and freshness, food adulteration and authenticity as well as natural toxins, pesticides, herbicides, fungicides, veterinary, and growth promoter drug residues. Further, persistent organic pollutants (POPs), acrylamide, polycyclic aromatic hydrocarbon (PAH), biogenic amines, nitrosamine, furfural, phenolic compounds, heavy metals, food packaging materials, melamine, and food additives were also examined for the first time. Therefore, it is logical to predict that the application of the IMS technique in food safety, food quality, and contaminant analysis will be impressively increased in the future. HighlightsCurrent status of IMS for residues and contaminant detection in food safety.To assess all the detected contaminants in food safety, for the first time.Identified IMS-related parameters and chemical compounds in food safety control.
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Affiliation(s)
- Mahsa Alikord
- Department of Environmental Health, Food Safety Division, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Abdorreza Mohammadi
- Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Marzieh Kamankesh
- Cellular and Molecular Research Center, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Nabi Shariatifar
- Department of Environmental Health, Food Safety Division, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.,Halal Research Center of the Islamic Republic of Iran, Tehran, Iran
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Valadbeigi Y, Ilbeigi V, Vahidi M, Michalczuk B, Matejcik S, Tabrizchi M. Online detection and measurement of elemental mercury vapor by ion mobility spectrometry with chloroform dopant. J Chromatogr A 2020; 1634:461676. [DOI: 10.1016/j.chroma.2020.461676] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Accepted: 11/02/2020] [Indexed: 12/11/2022]
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Valadbeigi Y, Bayat S, Ilbeigi V. A Novel Application of Dopants in Ion Mobility Spectrometry: Suppression of Fragment Ions of Citric Acid. Anal Chem 2020; 92:7924-7931. [DOI: 10.1021/acs.analchem.0c01318] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Younes Valadbeigi
- Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin, Iran
| | - Sahar Bayat
- Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin, Iran
| | - Vahideh Ilbeigi
- TOF Tech. Pars Company, Isfahan Science & Technology Town, Isfahan, Iran
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Valadbeigi Y, Azizmohammadi S, Ilbeigi V. Small Host–Guest Systems in the Gas Phase: Tartaric Acid as a Host for both Anionic and Cationic Guests in the Atmospheric Pressure Chemical Ionization Source of Ion Mobility Spectrometry. J Phys Chem A 2020; 124:3386-3397. [DOI: 10.1021/acs.jpca.0c00118] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Younes Valadbeigi
- Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin, Iran
| | - Sima Azizmohammadi
- Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin, Iran
| | - Vahideh Ilbeigi
- TOF Tech. Pars Company, Isfahan Science & Technology Town, Isfahan, Iran
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Xie Y, Li Q, Hua L, Chen P, Hu F, Wan N, Li H. Highly selective and sensitive online measurement of trace exhaled HCN by acetone-assisted negative photoionization time-of-flight mass spectrometry with in-source CID. Anal Chim Acta 2020; 1111:31-39. [PMID: 32312394 DOI: 10.1016/j.aca.2020.03.035] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 03/04/2020] [Accepted: 03/16/2020] [Indexed: 12/11/2022]
Abstract
Exhaled hydrogen cyanide (HCN) has been extensively investigated as a promising biomarker of the presence of Pseudomonas aeruginosa in the airways of patients with cystic fibrosis (CF) disease. Its concentration profile for exhalation can provide useful information for medical disease diagnosis and therapeutic procedures. However, the complexity of breath gas, like high humidity, carbon dioxide (CO2) and trace organic compounds, usually leads to quantitative error, poor selectivity and sensitivity for HCN with some of existing analytical techniques. In this work, acetone-assisted negative photoionization (AANP) based on a vacuum ultraviolet (VUV) lamp with a time-of- flight mass spectrometer (AANP-TOFMS) was firstly proposed for online measurement of trace HCN in human breath. In-source collision-induced dissociation (CID) was adopted for sensitivity improvement and the signal response of the characteristic ion CN- (m/z 26) was improved by about 24-fold. For accurate and reliable analysis of the exhaled HCN, matrix influences in the human breath including humidity and CO2 were investigated, respectively. A Nafion tube was used for online dehumidification of breath samples. Matrix-adapted calibration in the concentration range of 0.5-50 ppbv with satisfactory dynamic linearity and repeatability was obtained. The limit of quantitation (LOQ) for HCN at 0.5 ppbv was achieved in the presence of 100% relative humidity and 4% CO2. Finally, the method was successfully applied for online determination of human mouth- and nose-exhaled HCN, and the nose-exhaled HCN were proved to be reliable for assessing systemic HCN levels for individuals. The results are encouraging and highlight the potential of AANP-TOFMS with in-source CID as a selective, accurate, sensitive and noninvasive technique for determination of the exhaled HCN for CF clinical diagnosis and HCN poisoning assessment.
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Affiliation(s)
- Yuanyuan Xie
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning, 116023, People's Republic of China
| | - Qingyun Li
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning, 116023, People's Republic of China
| | - Lei Hua
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning, 116023, People's Republic of China.
| | - Ping Chen
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning, 116023, People's Republic of China
| | - Fan Hu
- Henan Province Medical Instrument Testing Institute, 79 Xiongerhe Road, Zhengzhou, 450018, People's Republic of China
| | - Ningbo Wan
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning, 116023, People's Republic of China; University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing, 100049, People's Republic of China
| | - Haiyang Li
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning, 116023, People's Republic of China.
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Li X, Xiong Y, Duan M, Wan H, Li J, Zhang C, Qin S, Fang S, Zhang R. Investigation on the Adsorption-Interaction Mechanism of Pb(II) at Surface of Silk Fibroin Protein-Derived Hybrid Nanoflower Adsorbent. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E1241. [PMID: 32182957 PMCID: PMC7085063 DOI: 10.3390/ma13051241] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 03/04/2020] [Accepted: 03/06/2020] [Indexed: 12/31/2022]
Abstract
For further the understanding of the adsorption mechanism of heavy metal ions on the surface of protein-inorganic hybrid nanoflowers, a novel protein-derived hybrid nanoflower was prepared to investigate the adsorption behavior and reveal the function of organic and inorganic parts on the surface of nanoflowers in the adsorption process in this study. Silk fibroin (SF)-derived and copper-based protein-inorganic hybrid nanoflowers of SF@Cu-NFs were prepared through self-assembly. The product was characterized and applied to adsorption of heavy metal ion of Pb(II). With Chinese peony flower-like morphology, the prepared SF@Cu-NFs showed ordered three-dimensional structure and exhibited excellent efficiency for Pb(II) removal. On one hand, the adsorption performance of SF@Cu-HNFs for Pb(II) removal was evaluated through systematical thermodynamic and adsorption kinetics investigation. The good fittings of Langmuir and pseudo-second-order models indicated the monolayer adsorption and high capacity of about 2000 mg g-1 of Pb(II) on SF@Cu-NFs. Meanwhile, the negative values of Δ r G m ( T ) θ and Δ r H m θ proved the spontaneous and exothermic process of Pb(II) adsorption. On the other hand, the adsorption mechanism of SF@Cu-HNFs for Pb(II) removal was revealed with respect to its individual organic and inorganic component. Organic SF protein was designated as responsible 'stamen' adsorption site for fast adsorption of Pb(II), which was originated from multiple coordinative interaction by numerous amide groups; inorganic Cu3(PO4)2 crystal was designated as responsible 'petal' adsorption site for slow adsorption of Pb(II), which was restricted from weak coordinative interaction by strong ion bond of Cu(II). With only about 10% weight content, SF protein was proven to play a key factor for SF@Cu-HNFs formation and have a significant effect on Pb(II) treatment. By fabricating SF@Cu-HNFs hybrid nanoflowers derived from SF protein, this work not only successfully provides insights on its adsorption performance and interaction mechanism for Pb(II) removal, but also provides a new idea for the preparation of adsorption materials for heavy metal ions in environmental sewage in the future.
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Affiliation(s)
- Xiang Li
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China; (X.L.); (J.L.); (C.Z.); (S.Q.); (S.F.)
| | - Yan Xiong
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China; (X.L.); (J.L.); (C.Z.); (S.Q.); (S.F.)
| | - Ming Duan
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China; (X.L.); (J.L.); (C.Z.); (S.Q.); (S.F.)
| | - Haiqin Wan
- State Key Laboratory of Pollution Control and Resource Reuse, Jiangsu Key Laboratory of Vehicle Emissions Control, School of the Environment, Nanjing University, Nanjing 210023, China;
| | - Jun Li
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China; (X.L.); (J.L.); (C.Z.); (S.Q.); (S.F.)
| | - Can Zhang
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China; (X.L.); (J.L.); (C.Z.); (S.Q.); (S.F.)
| | - Sha Qin
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China; (X.L.); (J.L.); (C.Z.); (S.Q.); (S.F.)
| | - Shenwen Fang
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China; (X.L.); (J.L.); (C.Z.); (S.Q.); (S.F.)
| | - Run Zhang
- Australian Institute for Bioengineering and Nanotechnology, AIBN, The University of Queensland, St Lucia, QLD 4072, Australia;
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Asadi M, Valadbeigi Y, Tabrizchi M. Thermionic sodium ion source versus corona discharge in detection of alkaloids using ion mobility spectrometry. ACTA ACUST UNITED AC 2019. [DOI: 10.1007/s12127-019-00249-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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13
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Valadbeigi Y, Ilbeigi V, Michalczuk B, Sabo M, Matejcik S. Study of Atmospheric Pressure Chemical Ionization Mechanism in Corona Discharge Ion Source with and without NH3 Dopant by Ion Mobility Spectrometry combined with Mass Spectrometry: A Theoretical and Experimental Study. J Phys Chem A 2018; 123:313-322. [DOI: 10.1021/acs.jpca.8b11417] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Younes Valadbeigi
- Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin, Iran
| | - Vahideh Ilbeigi
- TOF Tech. Pars Company, Isfahan Science & Technology Town, Isfahan, Iran
| | - Bartosz Michalczuk
- Department of Experimental Physics, Comenius University, Mlynska dolina F2, 84248 Bratislava, Slovak Republic
| | - Martin Sabo
- Department of Experimental Physics, Comenius University, Mlynska dolina F2, 84248 Bratislava, Slovak Republic
| | - Stefan Matejcik
- Department of Experimental Physics, Comenius University, Mlynska dolina F2, 84248 Bratislava, Slovak Republic
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14
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Davis AL, Clowers BH. Stabilization of gas-phase uranyl complexes enables rapid speciation using electrospray ionization and ion mobility-mass spectrometry. Talanta 2018; 176:140-150. [DOI: 10.1016/j.talanta.2017.07.090] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 07/27/2017] [Accepted: 07/28/2017] [Indexed: 12/17/2022]
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15
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Highly sensitive and selective electrochemical sensor for the trace level detection of mercury and cadmium. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.12.002] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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16
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Shu Q, Liu M, Ouyang H, Fu Z. Label-free fluorescent immunoassay for Cu 2+ ion detection based on UV degradation of immunocomplex and metal ion chelates. NANOSCALE 2017; 9:12302-12306. [PMID: 28820224 DOI: 10.1039/c7nr04087c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A mouse anti Cu2+-EDTA monoclonal antibody was used to capture EDTA chelated Cu2+ ions. Then UV radiation was utilized to degrade immunocomplex and Cu2+-EDTA chelates to release free Cu2+ ions. Based on their quenching effect to the fluorescent emission of CdSe/ZnS quantum dots, the released Cu2+ ions could be detected with ideal specificity and high sensitivity.
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Affiliation(s)
- Qi Shu
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Ministry of Education), College of Pharmaceutical Sciences, Southwest University, Chongqing 400716, China.
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