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Zhang L, Wang SL, Tan Y, Tao GH, Yuan WL, Fu J, Zhang GH, He L, Tao G. Hydrogen-bonding and "π-π" interaction promoted solution-processable mixed matrix membranes for aromatic amines detection. JOURNAL OF HAZARDOUS MATERIALS 2022; 430:128490. [PMID: 35739671 DOI: 10.1016/j.jhazmat.2022.128490] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 01/30/2022] [Accepted: 02/12/2022] [Indexed: 06/15/2023]
Abstract
Detection of hazardous compounds can alleviate risk to human health. However, it remains a challenge to develop easy-to-use testing tools for carcinogenic aromatic amines. Herein, we presented a conjugated molecule-based aniline detector, mixed matrix membranes (MMMs), through the solution-processable strategy. The pentacene-based dispersed phase is achieved using the state-of-the-art ionic liquids (ILs) as the continuous phase, based on which MMMs are easily manufactured by a solution process. Moreover, molecular dynamics (MD) simulations and quantum mechanical calculations suggested that hydrogen bonding and π-π interaction between ILs cations and pentacene could promote the dissolution. These prepared MMMs can offer easy-operation and on-site detection of carcinogenic primary aromatic amines with eye-readable fluorescence signal. This work provides a paradigm for the design of a portable testing device for various hazardous compounds.
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Affiliation(s)
- Lei Zhang
- School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Shuang-Long Wang
- College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Yunshu Tan
- School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Guo-Hong Tao
- College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Wen-Li Yuan
- College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Jie Fu
- College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Guo-Hao Zhang
- College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Ling He
- College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China.
| | - Guohua Tao
- School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen 518055, China.
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Werner J. Low Density Ionic Liquid-Based Ultrasound-Assisted Dispersive Liquid–Liquid Microextraction for the Preconcentration of Trace Aromatic Amines in Waters. JOURNAL OF ANALYTICAL CHEMISTRY 2021. [DOI: 10.1134/s1061934821100130] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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3
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Modification of EDC method for increased labeling efficiency and characterization of low-content protein in gum acacia using asymmetrical flow field-flow fractionation coupled with multiple detectors. Anal Bioanal Chem 2021; 413:6313-6320. [PMID: 34415361 PMCID: PMC8487880 DOI: 10.1007/s00216-021-03587-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 07/12/2021] [Accepted: 07/27/2021] [Indexed: 01/11/2023]
Abstract
1-Ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC) is widely used as a crosslinker for fluorescence labeling of protein in the fields of biochemistry and food analysis. Many natural polysaccharides often contain some proteins or peptides that are very low in content but play a vital role in their biological function as well as technical applications. Determination of these low-content proteinaceous matters requires a highly sensitive and selective method. In this study, a methodological approach for investigations of the presence of proteinaceous material over the molar mass distribution (MD) of polysaccharides was developed using gum acacia (GA) as a model polysaccharide. EDC fluorescence-labeling method was modified by changing the pH (7, 9, and 11) of the solution for the analysis of low-content protein in food materials. Fluorescence spectroscopy and asymmetrical flow field-flow fractionation (AF4) were employed for characterizing the labeling efficiency and physiochemical properties of unlabeled and fluorescence-labeled GA. AF4 provided molar mass (M) and the radius of gyration (rG) of arabinogalactan (AG) and arabinogalactan protein complex (AGP) and determined the presence of proteinaceous matter over the MD. The labeling efficiencies of GA at pH 7, 9, and 11 determined by fluorescence spectroscopy were 56.5, 68.4, and 72.0%, respectively, with an increment of 15.5% when pH was increased from 7 to 11. The modified EDC fluorescence-labeling method allows highly sensitive and selective analysis of low-content proteinaceous matters and their distribution in natural polysaccharides.
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Suchana S, Passeport E. Optimization of a solid-phase microextraction technique for chloro‑ and nitro- substituted aromatic compounds using design of experiments. J Chromatogr A 2020; 1621:461083. [PMID: 32317103 DOI: 10.1016/j.chroma.2020.461083] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Revised: 03/24/2020] [Accepted: 03/25/2020] [Indexed: 10/24/2022]
Abstract
A rapid and sensitive direct immersion solid-phase microextraction (SPME) technique for the analysis of seven chloro (Cl-) and nitro (NO2-) substituted anilines, toluenes, and nitrobenzenes from small volume (1.5 mL) aqueous samples was optimized for gas chromatography using Design of Experiments (DoE). Screening of the SPME factors was performed by a fractional factorial DoE, and the optimization of influential factors was achieved with a central composite multi-response surface DoE. Extraction time, pre-SPME agitation speed, extraction temperature, and desorption temperature were identified as significant factors and their values were set using a desirability function that maximized the extraction of the seven target analytes. Extraction time and agitation speed showed significant interactions for most analytes (α = 0.05). The relative standard deviations (RSDs) for within-day and between-day analyses were below 8%, suggesting that the method was repeatable and reproducible. The obtained limits of detection were in the low μg/L range (1-10) using a Flame Ionization Detector, far below what is needed for industrial contaminated sites (usually >1 mg/L). The optimized SPME method increased the analyte concentration up to 2-3 orders of magnitude compared with direct GC injection. The optimized SPME method was applied to two groundwater samples from a contaminated site in which the concentrations of three of the target analytes were ranged from 0.06 to 9.42 mg/L with RSDs <11%. When the concentrations of the target analytes in the sample matrix were higher than 0.5 mg/L, a competition for the SPME extraction sites was observed where analytes with higher affinity for the fiber material replaced the analytes with lower affinity. As a result, dilution of highly contaminated samples is recommended. This study provided for the first time an analytical method for the quantification of frequently co-occurring contaminants from the chloro‑ and nitro- substituted aniline, toluene, and nitrobenzene families.
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Affiliation(s)
- Shamsunnahar Suchana
- Department of Civil and Mineral Engineering, University of Toronto, 35 St George Street, M5S 1A4 Toronto, ON, Canada
| | - Elodie Passeport
- Department of Civil and Mineral Engineering, University of Toronto, 35 St George Street, M5S 1A4 Toronto, ON, Canada; Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, M5S 3E5 Toronto, ON, Canada.
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5
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Khatun MN, Tanwar AS, Meher N, Iyer PK. An Unprecedented Blueshifted Naphthalimide AIEEgen for Ultrasensitive Detection of 4-Nitroaniline in Water via "Receptor-Free" IFE Mechanism. Chem Asian J 2019; 14:4725-4731. [PMID: 31539197 DOI: 10.1002/asia.201901065] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 09/12/2019] [Indexed: 12/22/2022]
Abstract
The development of a new naphthalene appended naphthalimide derivative (NMI) with aggregation-induced enhanced emission (AIEE) property for the sensitive detection of 4-nitroaniline (4-NA) in aqueous media is presented here. The newly designed naphthalimide AIEEgen has an exceptional blue-shifted condensed state emission that is devoid of any receptor site, accomplished ultrasensitive detection of 4-NA, which is one of the broad-spectrum pesticides that belong to the class III toxic chemical, at parts per billion level (LOD/36 ppb, Ksv =4.1×104 m-1 ) in water with excellent selectivity even in the presence of potentially competing aliphatic and aromatic amines. The reported probe is the first of its kind, demonstrating major advantages of receptor-free inner filter effect (IFE) mechanism for the sensitive detection of 4-NA using an AIEEgenic probe. Excellent sensitivity for 4-NA is also achieved on paper-based test-strip for low-cost on-site detection.
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Affiliation(s)
- Mst Nasima Khatun
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India
| | - Arvin Sain Tanwar
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India
| | - Niranjan Meher
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India
| | - Parameswar Krishnan Iyer
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India.,Centre for Nanotechnology, Indian Institute of Technology Guwahat, Guwahati, 781039, Assam, India
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6
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Chen M, Zhu G, Wang S, Jiang K, Xu J, Liu J, Jiang J. Simultaneous determination of isomeric substituted anilines by imidization with benzaldehyde and gas chromatography-mass spectrometry. J Sep Sci 2017; 41:440-448. [PMID: 29083534 DOI: 10.1002/jssc.201700786] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 09/22/2017] [Accepted: 10/17/2017] [Indexed: 01/17/2023]
Abstract
The chromatographic separation of several isomeric anilines is a challenging issue. Herein, a simple method for the simultaneous determination of four groups of isomeric primary aromatic amines, including chloroanilines, methylanilines, methoxylanilines, and dimethylanilines, was presented. In this method, all of the 15 primary aromatic amines were easily transformed into the corresponding imine derivative by treatment with benzaldehyde under mild conditions. The formed isomeric imine derivatives were completely separated on a commercial capillary gas chromatography column. The effects of several derivatization parameters were investigated and optimized. Linearity in the optimized method ranged from 0.050 to 50 μg/mL with the squared correlation coefficients (R2 ) between 0.9981 and 0.9999. Reasonable reproducibility was obtained, with the intraday relative standard deviation (N = 5) ranging from 0.89 to 4.57% and interday relative standard deviation ranging from 2.26 to 7.69% at the concentration of 5.0 μg/mL. The developed method has been successfully applied to determine these isomeric aromatic amines in real samples.
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Affiliation(s)
- Mengmeng Chen
- Key Laboratory of Organosilicon Chemistry and Material Technology, Hangzhou Normal University, Hangzhou, China
| | - Guohua Zhu
- Zhejiang Province Environmental Monitoring Center, Hangzhou, China
| | - Shanshan Wang
- Key Laboratory of Organosilicon Chemistry and Material Technology, Hangzhou Normal University, Hangzhou, China
| | - Kezhi Jiang
- Key Laboratory of Organosilicon Chemistry and Material Technology, Hangzhou Normal University, Hangzhou, China
| | - Jiaxiang Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology, Hangzhou Normal University, Hangzhou, China
| | - Jinsong Liu
- Zhejiang Province Environmental Monitoring Center, Hangzhou, China
| | - Jianxiong Jiang
- Key Laboratory of Organosilicon Chemistry and Material Technology, Hangzhou Normal University, Hangzhou, China
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7
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Hong Y, Kim KH, Sang BI, Kim H. Simple quantification method for N-nitrosamines in atmospheric particulates based on facile pretreatment and GC-MS/MS. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 226:324-334. [PMID: 28412030 DOI: 10.1016/j.envpol.2017.04.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 04/06/2017] [Accepted: 04/08/2017] [Indexed: 06/07/2023]
Abstract
Nine N-nitrosamines (i.e., N-nitrosomethylamine, N-nitrosodiethylamine (NDEA), N-nitrosodimethylamine (NDMA), N-nitrosodi-n-propylamine (NDPA), N-nitrosomorpholine (NMor), N-nitrosopyrrolidine (NPyr), N-nitrosopiperidine (NPip), N-nitorosodi-n-butylamine (NDBA), and N-nitrosodiphenylamine (NDPhA) in atmospheric PM2.5 collected in the fall season from an roadside site and a residential in Seoul, Korea have been analyzed using a newly developed method consisting of simple direct liquid extraction assisted by ultrasonication and subsequent quantification using a gas chromatography-triple quadrupole mass spectrometry (GC-TQMS). Excellent recovery values (92-100%) and method detection limits for the target compounds atmospheric PM samples could be achieved even without an evaporation step for sample concentration. The concentration of total N-nitrosamines in PM2.5 was ranged from 0.3 to 9.4 ng m-3 in this study; NDMA, NDEA, NDBA, NPyr, and NMor in PM2.5 were found to be the most frequently encountered compounds at the sampling sites. Since no industrial plant is located in Seoul, vehicle exhausts were considered major cause of the formation of nitrosamines in this study. The mechanisms how these compounds are formed and detected in the atmosphere are explained from the viewpoint of secondary organic aerosol. Considering the concentrations of N-nitrosamines and their associated potential health risks, a systematic monitoring of nitrosamines present in both ambient air and PM2.5 including seasonal and diurnal variations of selected sites (including potential precursor sources) should be carried out in the future. The proposed sample pretreatment method along with the analytical method will definitely help us perform the monitoring study.
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Affiliation(s)
- Youngmin Hong
- Technical Research Center, Dong-il Shimadzu Co., Seoul 08506, Republic of Korea
| | - Kyung Hwan Kim
- Technical Research Center, Dong-il Shimadzu Co., Seoul 08506, Republic of Korea
| | - Byoung-In Sang
- Dept. of Chemical Engineering & Bioengineering, Hanyang University, Seoul 04763, Republic of Korea
| | - Hyunook Kim
- Dept. of Environmental Engineering, The University of Seoul, Seoul 02504, Republic of Korea.
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8
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Płotka-Wasylka JM, Morrison C, Biziuk M, Namieśnik J. Chemical derivatization processes applied to amine determination in samples of different matrix composition. Chem Rev 2015; 115:4693-718. [PMID: 26023865 DOI: 10.1021/cr4006999] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Justyna M Płotka-Wasylka
- †Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 Narutowicza Street, 80-233 Gdańsk, Poland
| | - Calum Morrison
- ‡Forensic Medicine and Science, School of Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - Marek Biziuk
- †Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 Narutowicza Street, 80-233 Gdańsk, Poland
| | - Jacek Namieśnik
- †Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 Narutowicza Street, 80-233 Gdańsk, Poland
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9
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Zhao XE, Zhu S, Yang H, You J, Song F, Liu Z, Liu S. Simultaneous determination of amino acid and monoamine neurotransmitters in PC12 cells and rats models of Parkinson's disease using a sensitizing derivatization reagent by UHPLC-MS/MS. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 995-996:15-23. [PMID: 26021847 DOI: 10.1016/j.jchromb.2015.05.017] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Revised: 05/04/2015] [Accepted: 05/14/2015] [Indexed: 11/27/2022]
Abstract
Multi-analytes simultaneous monitoring of amino acid and monoamine neurotransmitters (NTs) has important scientific significance for their related pathology, physiology and drug screening. In this work, in virtue of a mass spectrometry sensitizing reagent 10-ethyl-acridone-3-sulfonyl chloride (EASC) as derivatization reagent, an Ultra High Performance Liquid Chromatography-Tandem Mass Spectrometry (UHPLC-MS/MS) method was developed and validated for simultaneous determination of six amino acid NTs, two monoamine ones and its one metabolite. The simple and rapid derivatization reaction was innovatively combined with plasma preparation by using EASC acetonitrile solution as protein precipitant. This interesting combination brought the advantages of speediness, simpleness and high-throughput in a cost-effective way. Under the optimized conditions, LODs (0.004-3.80nM) and LOQs (0.014-13.3nM) of EASC derivatized-NTs were calculated and found to be significantly lower than those of direct UHPLC-MS/MS detection about 11.5-275.0 and 14.4-371.4 times, respectively. Moreover, EASC derivatization significantly improved chromatographic resolution and matrix effect when compared with direct UPLC-MS/MS detection method without derivatization. Meanwhile, it also brought acceptable precision (3.0-13.0%, peak area CVs%), accuracy (86.4-112.9%), recovery (88.3-107.8%) and stability (3.8-8.5%, peak area CVs%) results. This method was successfully applied for the antiparkinsonian effect evaluation of levodopa and Ginsenoside Rg1 using PC12 cells and rats models by measuring multiple NTs. This provided a new method for the NTs related studies in the future.
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Affiliation(s)
- Xian-En Zhao
- Shandong Provincial Key Laboratory of Life-Organic Analysis, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, PR China; Changchun Center of Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, PR China.
| | - Shuyun Zhu
- Shandong Provincial Key Laboratory of Life-Organic Analysis, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, PR China
| | - Hongmei Yang
- Changchun Center of Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, PR China; Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun 130117, China
| | - Jinmao You
- Shandong Provincial Key Laboratory of Life-Organic Analysis, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, PR China
| | - Fengrui Song
- Changchun Center of Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, PR China
| | - Zhiqiang Liu
- Changchun Center of Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, PR China
| | - Shuying Liu
- Changchun Center of Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, PR China; Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun 130117, China.
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10
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Pereira L, Mondal PK, Alves M. Aromatic Amines Sources, Environmental Impact and Remediation. POLLUTANTS IN BUILDINGS, WATER AND LIVING ORGANISMS 2015. [DOI: 10.1007/978-3-319-19276-5_7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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11
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Wang F, Dong C, Wang C, Yu Z, Guo S, Wang Z, Zhao Y, Li G. Fluorescence detection of aromatic amines and photocatalytic degradation of rhodamine B under UV light irradiation by luminescent metal–organic frameworks. NEW J CHEM 2015. [DOI: 10.1039/c4nj02356k] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two MOFs were employed as fluorescence materials for selectively sensing aromatic amines as well as the photodegradation of organic dyes.
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Affiliation(s)
- Fengqin Wang
- College of Environmental and Chemical Engineering & Key Lab of Hollow Fiber Membrane Materials & Membrane Process
- Tianjin Polytechnic University
- Tianjin 300387
- China
| | - Caifu Dong
- College of Environmental and Chemical Engineering & Key Lab of Hollow Fiber Membrane Materials & Membrane Process
- Tianjin Polytechnic University
- Tianjin 300387
- China
| | - Chengmiao Wang
- College of Environmental and Chemical Engineering & Key Lab of Hollow Fiber Membrane Materials & Membrane Process
- Tianjin Polytechnic University
- Tianjin 300387
- China
| | - Zongchao Yu
- College of Environmental and Chemical Engineering & Key Lab of Hollow Fiber Membrane Materials & Membrane Process
- Tianjin Polytechnic University
- Tianjin 300387
- China
| | - Shukun Guo
- School of Materials Science and Engineering & Tianjin Key Lab of Fiber Modification and Functional Fiber
- Tianjin Polytechnic University
- Tianjin 300387
- China
| | - Zechuan Wang
- College of Environmental and Chemical Engineering & Key Lab of Hollow Fiber Membrane Materials & Membrane Process
- Tianjin Polytechnic University
- Tianjin 300387
- China
| | - Yongnan Zhao
- School of Materials Science and Engineering & Tianjin Key Lab of Fiber Modification and Functional Fiber
- Tianjin Polytechnic University
- Tianjin 300387
- China
| | - Guodong Li
- The State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- Jilin University
- China
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Jiang C, Sun Y, Yu X, Gao Y, Zhang L, Wang Y, Zhang H, Song D. Application of C18-functional magnetic nanoparticles for extraction of aromatic amines from human urine. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 947-948:49-56. [DOI: 10.1016/j.jchromb.2013.12.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2012] [Revised: 08/21/2013] [Accepted: 12/02/2013] [Indexed: 11/26/2022]
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13
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Paseiro-Cerrato R, Noonan G, Begley T. Development of a rapid screening method to determine primary aromatic amines in kitchen utensils using direct analysis in real time mass spectrometry (DART-MS). Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2014; 31:537-45. [DOI: 10.1080/19440049.2013.867366] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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14
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Jain A, Reddy-Noone K, Pillai AK, Verma KK. Conversion to isothiocyanates via dithiocarbamates for the determination of aromatic primary amines by headspace-solid phase microextraction and gas chromatography. Anal Chim Acta 2013; 801:48-58. [DOI: 10.1016/j.aca.2013.09.046] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Revised: 09/14/2013] [Accepted: 09/20/2013] [Indexed: 10/26/2022]
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15
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Jurado-Sánchez B, Ballesteros E, Gallego M. Comparison of microwave assisted, ultrasonic assisted and Soxhlet extractions of N-nitrosamines and aromatic amines in sewage sludge, soils and sediments. THE SCIENCE OF THE TOTAL ENVIRONMENT 2013; 463-464:293-301. [PMID: 23816423 DOI: 10.1016/j.scitotenv.2013.06.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2013] [Revised: 05/20/2013] [Accepted: 06/02/2013] [Indexed: 06/02/2023]
Abstract
This paper describes a cost-effective and sensitive method for the gas chromatographic determination of 10 aliphatic and aromatic N-nitrosamines and 14 aromatic amines (including aniline, several chloroanilines and 2-nitroaniline) in various soil matrices, after microwave-assisted extraction (MAE) combined with continuous solid-phase extraction. A systematic comparison of MAE with ultrasonic assisted and Soxhlet extraction alternatives showed that MAE provided the highest extraction efficiency (94-96%) with the shortest extraction time (3 min). The method developed provides a linear response throughout the concentration range 0.1-150 ng g(-1) and features low limits of detection (0.03-0.35 ng g(-1)) and good precision. The method was successfully applied to study the occurrence of the analytes in sewage sludge, agricultural soils, and river and pond sediments. Aniline and chloroanilines were the amines most frequently detected (0.4-5.4 ng g(-1)), whereas N-nitrosodimethylamine, N-nitrosodiethylamine and N-nitrosomorpholine were only found in two of the urban sewage sludge samples analyzed (0.4-1.6 ng g(-1)).
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Affiliation(s)
- Beatriz Jurado-Sánchez
- Department of Analytical Chemistry, Campus of Rabanales, University of Córdoba, E-14071 Córdoba, Spain
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Li R, Wang L, Gao X, Du G, Zhai H, Wang X, Guo G, Pu Q. Rapid separation and sensitive determination of banned aromatic amines with plastic microchip electrophoresis. JOURNAL OF HAZARDOUS MATERIALS 2013; 248-249:268-275. [PMID: 23385207 DOI: 10.1016/j.jhazmat.2013.01.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2012] [Revised: 12/28/2012] [Accepted: 01/08/2013] [Indexed: 06/01/2023]
Abstract
Rapid analysis of trace amount of aromatic amines in environmental samples and daily necessities has attracted considerable attentions because some of them are strongly toxic and carcinogenic. In this study, fast and efficient electrophoretic separation and sensitive determination of 5 banned aromatic amines were explored for practical analysis using disposable plastic microchips combined with a low-cost laser-induced fluorescence detector. The effect of running buffer and its additive was systematically investigated. Under the selected condition, 5 fluorescein isothiocyanate labeled aromatic amines could be baseline separated within 90s by using a 10mmol/L borate buffer containing 2% (w/v) hydroxypropyl cellulose. Calibration curves of peak areas vs. concentrations were linear up to 40 or 120μmol/L for different analytes and limits of detection were in a range of 1-3nmol/L. Theoretical plate numbers of 6.8-8.5×10(5)/m were readily achieved. The method exhibited good repeatability, relative standard deviations (n=5) of peak areas and migration times were no more than 4.6% and 0.9%, respectively. The established method was successfully applied in the quantitative analysis of these banned aromatic amines in real samples of waste water and textile, recoveries of added standards were 85-110%.
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Affiliation(s)
- Ruina Li
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou, Gansu 730000, China
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18
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Liu DQ, Sun M, Kord AS. Recent advances in trace analysis of pharmaceutical genotoxic impurities. J Pharm Biomed Anal 2010; 51:999-1014. [DOI: 10.1016/j.jpba.2009.11.009] [Citation(s) in RCA: 79] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2009] [Revised: 11/03/2009] [Accepted: 11/08/2009] [Indexed: 10/20/2022]
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