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Liu Z, Wang X, Li J, Zhou W, Gao H, Lu R. Construction of a three-mode sensor based on gold nanoparticles and carbon quantum dots as probes for the detection of thiosemicarbazone. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:2127-2134. [PMID: 38517081 DOI: 10.1039/d4ay00256c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
In this study, ginkgo leaves were used as a carbon source to synthesize carbon quantum dots (CQDs) with uniform particle size, high fluorescence (FL) intensity and strong stability, using a hydrothermal method. FL could be quenched by the FL resonance energy transfer effect between CQDs and gold nanoparticles (AuNPs), an important FL quenching agent. The electrostatic attraction between thiosemicarbazone (TSC) and citrate on the surface of AuNPs and the formation of a stable Au-S bond between TSC and AuNPs led to the aggregation of AuNPs and thus weakened the quenching effect on CQDs and partly recovered the FL. A sensor in FL mode for the detection of TSC was constructed based on the above-mentioned FL "off" and "on" phenomena. The results showed a good linear correlation in the concentration range 0-1.75 μM, and the limit of detection was as low as 0.05 μM. In addition, the aggregation of AuNPs caused by TSC also led to a change in the absorbance curve and color of the solution; colorimetric and chrominance detection modes were also constructed using these two types of changes, with sensitive responses ranging 0-2.25 μM and 0-1.60 μM and the limits of detection of 0.03 μM and 0.08 μM, respectively. More importantly, these three detection modes obtained satisfactory recovery rates in the detection of the TSC content in river water, liquor and wheat samples, and the detection results were mutually verified (95.18% to 104.96%).
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Affiliation(s)
- Zhili Liu
- Department of Chemistry, College of Science, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China.
| | - Xiaojun Wang
- Department of Chemistry, College of Science, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China.
| | - Jing Li
- Department of Chemistry, College of Science, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China.
| | - Wenfeng Zhou
- Department of Chemistry, College of Science, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China.
| | - Haixiang Gao
- Department of Chemistry, College of Science, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China.
| | - Runhua Lu
- Department of Chemistry, College of Science, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China.
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2
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You JJ, Liu H, Zhang RR, Pan QF, Sun AL, Zhang ZM, Shi XZ. Development and application of tricolor ratiometric fluorescence sensor based on molecularly imprinted nanoparticles for visual detection of dibutyl phthalate in seawater and fish samples. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 848:157675. [PMID: 35907542 DOI: 10.1016/j.scitotenv.2022.157675] [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: 06/10/2022] [Revised: 07/23/2022] [Accepted: 07/24/2022] [Indexed: 06/15/2023]
Abstract
A tricolor ratiometric fluorescence sensor was fabricated by mixing blue- and red-emission molecularly imprinted quantum dots (MIP-QDs) with green-emission quantum dots at the optimal ratio. The MIP-QDs were synthesized by coating CdSe/ZnS QDs in polymer by inverse microemulsion method. Compared with single-emission or dual-emission sensors, the tricolor ratiometric fluorescence sensor provided a wider range of color variations for visual DBP detection. The ratio fluorescence value I530/(I450 + I630) of the tricolor ratiometric fluorescence sensor linearly changed within the concentration of 2.0-20.0 × 103 μg/L DBP. The correlation coefficient was 0.9910, and the limits of detection were 1.0 μg/kg and 0.65 μg/L in fish and seawater, respectively. Meanwhile, the fluorescence color gradually changed from purple to plum to pink to salmon to yellowish green and finally to green. The recoveries of DBP in fish and seawater were 84.3 %-91.4 % and 88.3 %-110.3 %, respectively. Moreover, no obvious differences were observed between the detection results of the tricolor ratiometric fluorescence sensor and gas chromatography-tandem mass spectrometry. The tricolor ratiometric fluorescence sensor constructed herein provides an ideal choice for rapid and intuitive DBP detection in environmental and aquatic products.
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Affiliation(s)
- Jin-Jie You
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Marine Sciences, Ningbo University, Ningbo 315211, China; School of Marine Sciences, Ningbo University, Ningbo 315211, China; College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, China
| | - Hua Liu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Marine Sciences, Ningbo University, Ningbo 315211, China; School of Marine Sciences, Ningbo University, Ningbo 315211, China.
| | - Rong-Rong Zhang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Marine Sciences, Ningbo University, Ningbo 315211, China; School of Marine Sciences, Ningbo University, Ningbo 315211, China
| | - Qiao-Fen Pan
- School of Marine Sciences, Ningbo University, Ningbo 315211, China; College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, China
| | - Ai-Li Sun
- School of Marine Sciences, Ningbo University, Ningbo 315211, China
| | - Ze-Ming Zhang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Marine Sciences, Ningbo University, Ningbo 315211, China; School of Marine Sciences, Ningbo University, Ningbo 315211, China
| | - Xi-Zhi Shi
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Marine Sciences, Ningbo University, Ningbo 315211, China; School of Marine Sciences, Ningbo University, Ningbo 315211, China.
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3
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Yan Y, Qu Y, Du R, Zhou W, Gao H, Lu R. Colorimetric assay based on arginine-functionalized gold nanoparticles for the detection of dibutyl phthalate in Baijiu samples. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:5179-5186. [PMID: 34672311 DOI: 10.1039/d1ay01464a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In this paper, a simple and innovative colorimetric method is established, which is based on DBP-induced aggregation of arginine functionalized gold nanoparticles (ARG-AuNPs), and can be used for the sensitive determination of dibutyl phthalate (DBP) in Baijiu samples. The morphological characteristics and the color changes of ARG-AuNPs caused by aggregation show good sensitivity, and can be observed through ultraviolet-visible spectroscopy, Fourier transform infrared (FT-IR) spectroscopy, transmission electron microscopy (TEM), dynamic light scattering (DLS) and zeta potential technology. The color change of ARG-AuNPs from red to blue is due to the strong non-covalent interactions between DBP and ARG-AuNPs (electrostatic, van der Waals force and hydrogen bonding), which leads to the reduction of the electrostatic repulsion between the nanoparticles and aggregation. A two-stage linear equation was established between the absorption ratio (A690/A530) and the DBP concentration (0.0-2.8 mg L-1); the correlation coefficient (R2) was 0.9914-0.9940, and the detection limit (LOD) was estimated at 0.05 mg L-1. The designed ARG-AuNPs acting as a dependable sensor for the detection of Baijiu samples equally acquired satisfactory recoveries. When the concentration of DBP in the solution is more than 1.0 mg L-1, the color change can be clearly observed by the naked eye; so there is no need for sample preparation techniques and tedious operations to quickly and semi-quantitatively detect DBP. The successful application of the proposed method in Baijiu samples indicates its potential to detect DBP in more complex environment samples.
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Affiliation(s)
- Yumei Yan
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China.
| | - Yuan Qu
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China.
| | - Rui Du
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China.
| | - Wenfeng Zhou
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China.
| | - Haixiang Gao
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China.
| | - Runhua Lu
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China.
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Wu D, Liu F, Tian T, Wu JF, Zhao GC. Copper ferrite nanoparticles as novel coating appropriated to solid-phase microextraction of phthalate esters from aqueous matrices. Microchem J 2021. [DOI: 10.1016/j.microc.2020.105845] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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5
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Novel low viscous hydrophobic deep eutectic solvents liquid-liquid microextraction combined with acid base induction for the determination of phthalate esters in the packed milk samples. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105332] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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6
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Wu Y, Zhou Q, Yuan Y, Wang H, Tong Y, Zhan Y, Sheng X, Sun Y, Zhou X. Enrichment and sensitive determination of phthalate esters in environmental water samples: A novel approach of MSPE-HPLC based on PAMAM dendrimers-functionalized magnetic-nanoparticles. Talanta 2020; 206:120213. [DOI: 10.1016/j.talanta.2019.120213] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 07/21/2019] [Accepted: 07/31/2019] [Indexed: 12/21/2022]
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7
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A Novel Application of Fluorine Doped Carbon Dots Combining Vortex-Assisted Liquid-Liquid Microextraction for Determination of 4-Nitrophenol with Spectrofluorimetric Method. J Fluoresc 2019; 29:1133-1141. [DOI: 10.1007/s10895-019-02427-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 01/15/2019] [Indexed: 11/25/2022]
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8
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Wang T, Zhang R, Li D, Su P, Yang Y. Application of magnetized MOF-74 to phthalate esters extraction from Chinese liquor. J Sep Sci 2019; 42:1600-1609. [PMID: 30734482 DOI: 10.1002/jssc.201801244] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 02/03/2019] [Accepted: 02/03/2019] [Indexed: 12/12/2022]
Abstract
In this study, magnetized MOF-74 (Ni) was prepared using an ultrasound-assisted synthesis method. This novel functional magnetic adsorbent was characterized using various techniques. Using the prepared material as adsorbents, a magnetic solid-phase extraction method coupled with high-performance liquid chromatography was proposed for determining four phthalate esters in Chinese liquor samples. The extraction parameters, including solution pH, adsorbent amount, extraction time, and eluent type and volume, were optimized. Under the optimized conditions, proposed method showed good linearity within the range of 1.53-200 μg/L for diphenyl phthalate, 2.03-200 μg/L for butyl benzyl phthalate, 7.02-200 μg/L for diamyl phthalate, and 6.03-200 μg/L for dicyclohexyl phthalate, with correlation coefficients > 0.9944, low limits of detection (0.46-2.10 μg/L, S/N = 3), and good extraction repeatability (relative standard deviations of 3.7%, n = 6). This method was successfully used to analyze phthalate esters in Chinese liquor samples with recoveries of 74.4-104.8%. Two phthalate esters were detected in two samples, both at concentrations that satisfied the Chinese national standard, indicating this method has practical application prospects. The extraction efficiency of this method was also compared with conventional solid-phase extraction using commercial C18 cartridges. The results demonstrated that the proposed magnetic solid-phase extraction is a simple, time-saving, efficient, and low-cost method.
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Affiliation(s)
- Tiefeng Wang
- College of Science, Beijing Key Laboratory of Environmentally Harmful Chemical Analysis, Beijing University of Chemical Technology, Beijing, P. R. China
| | - Ruiqi Zhang
- College of Science, Beijing Key Laboratory of Environmentally Harmful Chemical Analysis, Beijing University of Chemical Technology, Beijing, P. R. China
| | - Di Li
- College of Science, Beijing Key Laboratory of Environmentally Harmful Chemical Analysis, Beijing University of Chemical Technology, Beijing, P. R. China
| | - Ping Su
- College of Science, Beijing Key Laboratory of Environmentally Harmful Chemical Analysis, Beijing University of Chemical Technology, Beijing, P. R. China
| | - Yi Yang
- College of Science, Beijing Key Laboratory of Environmentally Harmful Chemical Analysis, Beijing University of Chemical Technology, Beijing, P. R. China
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9
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Computer-aided design of magnetic dummy molecularly imprinted polymers for solid-phase extraction of ten phthalates from food prior to their determination by GC-MS/MS. Mikrochim Acta 2018; 185:373. [DOI: 10.1007/s00604-018-2892-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 06/26/2018] [Indexed: 10/28/2022]
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10
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Sun X, Dong W, Liu M, Shen C, Zhang Y, Sun J, Sun B, Li H, Chen F. Validation of a QuEChERS-Based Gas Chromatography-Mass Spectrometry (GC-MS) Method for Analysis of Phthalate Esters in Grain Sorghum. J Food Sci 2018; 83:892-901. [PMID: 29577291 DOI: 10.1111/1750-3841.14063] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 01/03/2018] [Accepted: 01/07/2018] [Indexed: 01/09/2023]
Abstract
A modified QuEChERS method coupled with gas chromatography-mass spectrometry (GC-MS) was developed for analysis of 14 phthalate esters (PAEs) in grain sorghum (GS). Chemical extraction was done with acetonitrile followed by dispersive-solid phase extraction technique with a mixture of sorbents including primary secondary amine and octadecyl silica. Under the optimized condition, the matrix-matched calibration curves for all PAEs showed good linear relationship in the concentration range between 5 and 500 μg/L with correlation coefficients (R2 ) better than 0.99. Mean recoveries were between 82.0% and 120.2% at spiking levels of 0.06, 0.6, and 2.0 mg/kg with RSD of 0.3% to 7.8% (n = 5) for intra-day precision and 1.2% to 7.6% (n = 5) for inter-day precision. The LODGS and LOQGS for 14 PAEs were between 0.4 and 10.0 μg/kg and 0.5 and 20.0 μg/kg, respectively. Analysis of 32 commercial GS samples revealed that dimethyl-, diethyl-, diisobutyl-, dibutyl-, and di- (2-ethylhexyl) phthalate esters were detected in all of the analytes. In addition, content-color scale model was applied to visualize the concentration differences of PAEs in real GS samples. Principal component analysis of PAEs revealed that the GS samples did not have a distinctive cluster based on their geographic origins. The established method was proven to be simple, accurate, and effective for analysis of PAEs in GS, which might also be applied for analysis of PAEs in other matrices. PRACTICAL APPLICATION A modified QuEChERS-based GC-MS method was developed for the determination of phthalate esters (PAEs) in grain sorghum (GS). The ubiquitous presence of PAEs can migrate into GS. Therefore, evaluation of the total content of PAEs in GS is helpful to understand its impact of overall pollution level on other foods. This study has provided some basic information in terms of the content and contamination of PAEs in GS, which is helpful to establish relevant standards and risk assessment of GS for the government.
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Affiliation(s)
- Xiaotao Sun
- College of Food Engineering and Biotechnology, Tianjin Univ. of Science and Technology, Tianjin 300457, P. R. China.,Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business Univ., Beijing 100048, P. R. China.,College of Food Science, Beijing Technology and Business Univ., Beijing 100048, P. R. China
| | - Wei Dong
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business Univ., Beijing 100048, P. R. China.,College of Food Science, Beijing Technology and Business Univ., Beijing 100048, P. R. China
| | - Miao Liu
- Luzhou Laojiao Co. Ltd., Luzhou, Sichuan 646000, P. R. China
| | - Caihong Shen
- Luzhou Laojiao Co. Ltd., Luzhou, Sichuan 646000, P. R. China
| | - Yuyu Zhang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business Univ., Beijing 100048, P. R. China.,College of Food Science, Beijing Technology and Business Univ., Beijing 100048, P. R. China
| | - Jinyuan Sun
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business Univ., Beijing 100048, P. R. China.,College of Food Science, Beijing Technology and Business Univ., Beijing 100048, P. R. China
| | - Baoguo Sun
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business Univ., Beijing 100048, P. R. China.,College of Food Science, Beijing Technology and Business Univ., Beijing 100048, P. R. China
| | - Hehe Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business Univ., Beijing 100048, P. R. China.,College of Food Science, Beijing Technology and Business Univ., Beijing 100048, P. R. China
| | - Feng Chen
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business Univ., Beijing 100048, P. R. China.,College of Food Science, Beijing Technology and Business Univ., Beijing 100048, P. R. China.,Dept. of Food, Nutrition and Packaging Sciences, Clemson Univ., Clemson, SC 29634, U.S.A
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11
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Mahmoudi Alami F, Zavvar Mousavi H, Khaligh A. Filter-Based Low-Toxic Emulsification Microextraction Followed by High-Performance Liquid Chromatography for Determination of Sudan Dyes in Foodstuff Samples. FOOD ANAL METHOD 2018. [DOI: 10.1007/s12161-018-1196-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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12
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Miao M, Zhao G, Xu L, Dong J, Cheng P. Direct determination of trace phthalate esters in alcoholic spirits by spray-inlet microwave plasma torch ionization tandem mass spectrometry. JOURNAL OF MASS SPECTROMETRY : JMS 2018; 53:189-194. [PMID: 29277984 DOI: 10.1002/jms.4055] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 12/13/2017] [Accepted: 12/15/2017] [Indexed: 06/07/2023]
Abstract
A direct analytical method based on spray-inlet microwave plasma torch tandem mass spectrometry was applied to simultaneously determine 4 phthalate esters (PAEs), namely, benzyl butyl phthalate, diethyl phthalate, dipentyl phthalate, and dodecyl phthalate with extremely high sensitivity in spirits without sample treatment. Among the 4 brands of spirit products, 3 kinds of PAE compounds were directly determined at very low concentrations from 1.30 to 114 ng·g-1 . Compared with other online and off-line methods, the spray-inlet microwave plasma torch tandem mass spectrometry technique is extremely simple, rapid, sensitive, and high efficient, providing an ideal screening tool for PAEs in spirits.
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Affiliation(s)
- Meng Miao
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Gaosheng Zhao
- College of Control Science and Engineering, Zhejiang University, Hangzhou, 310000, China
| | - Li Xu
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Junguo Dong
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Ping Cheng
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
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13
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Vortex-assisted liquid-liquid–liquid microextraction followed by high performance liquid chromatography for the simultaneous determination of fourteen phenolic acids in honey, iced tea and canned coffee drinks. Talanta 2017; 174:428-435. [DOI: 10.1016/j.talanta.2017.06.039] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2017] [Revised: 06/12/2017] [Accepted: 06/13/2017] [Indexed: 01/22/2023]
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14
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15
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Wang CY, Chang DA, Shen Y, Sun YC, Wu CH. Vortex-assisted liquid-liquid microextraction of strontium from water samples using 4',4″(5″)-di-(tert-butylcyclohexano)-18-crown-6 and tetraphenylborate. J Sep Sci 2017; 40:3866-3872. [PMID: 28748649 DOI: 10.1002/jssc.201700205] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 07/03/2017] [Accepted: 07/19/2017] [Indexed: 01/08/2023]
Abstract
A vortex-assisted liquid-liquid microextraction method was developed for the chromatographic determination of strontium in aqueous samples. In the method, strontium was complexed with 4',4″(5″)-di-(tert-butylcyclohexano)-18-crown-6 in the presence of tetraphenylborate as the counter anion, which increased the hydrophobicity of the ion-association complex, resulting in its improved extraction into 1-octanol. Strontium from the organic phase was stripped with nitric acid back to aqueous solution and determined by ion chromatography. The optimum microextraction conditions were as follows: 2.0 mL aqueous samples with 3 mM tetraphenylborate; 150 μL of 1-octanol as the extractant phase with 10 mM DtBuCH18C6; vortex extraction time for 10 s; centrifugation at 6000 rpm for 4 min; stripping by 0.1 M nitric acid. Under the optimum conditions, the detection limit for strontium was 0.005 mg/L. The calibration curves showed good linearity over the range between 0.01 and 2.5 mg/L. Intra- and interday precisions of the present method were satisfactory with relative standard deviations of 1.7 and 2.1%, respectively.
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Affiliation(s)
- Chin-Yi Wang
- Department of Biomedical Engineering and Environmental Sciences, College of Nuclear Science, National Tsing Hua University, Hsinchu, Taiwan
| | - Da-An Chang
- Department of Biomedical Engineering and Environmental Sciences, College of Nuclear Science, National Tsing Hua University, Hsinchu, Taiwan
| | - Yuzhou Shen
- Department of Biomedical Engineering and Environmental Sciences, College of Nuclear Science, National Tsing Hua University, Hsinchu, Taiwan
| | - Yuh-Chang Sun
- Department of Biomedical Engineering and Environmental Sciences, College of Nuclear Science, National Tsing Hua University, Hsinchu, Taiwan
| | - Chien-Hou Wu
- Department of Biomedical Engineering and Environmental Sciences, College of Nuclear Science, National Tsing Hua University, Hsinchu, Taiwan
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16
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An Efficient Assay for Simultaneous Quantification of Ethyl Carbamate and Phthalate Esters in Chinese Liquor by Gas Chromatography-Mass Spectrometry. FOOD ANAL METHOD 2017. [DOI: 10.1007/s12161-017-0906-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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17
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Liu R, Liu Y, Cheng C, Yang Y. Ionic liquid enhanced magnetic solid-phase extraction of phthalate esters in food samples with oleic acid coated-Fe3O4 nanoparticles prior to HPLC. SEP SCI TECHNOL 2017. [DOI: 10.1080/01496395.2017.1302479] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Ruiqi Liu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Ye Liu
- Yunnan Salt & Salt Chemical Co., Ltd., Kunming, China
| | - Chunsheng Cheng
- Yunnan Province Food Safety Research Inst., Kunming University of Science and Technology, Kunming, China
| | - Yaling Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
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18
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Ionic Liquid-Based Surfactant Extraction Coupled with Magnetic Dispersive μ-Solid Phase Extraction for the Determination of Phthalate Esters in Packaging Milk Samples by HPLC. FOOD ANAL METHOD 2016. [DOI: 10.1007/s12161-016-0729-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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19
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Receptor-Based Fluorescence Polarization Assay to Detect Phthalate Esters in Chinese Spirits. FOOD ANAL METHOD 2016. [DOI: 10.1007/s12161-016-0682-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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20
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Wang J, Huang S, Wang P, Yang Y. Method development for the analysis of phthalate esters in tea beverages by ionic liquid hollow fibre liquid-phase microextraction and liquid chromatographic detection. Food Control 2016. [DOI: 10.1016/j.foodcont.2016.03.015] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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21
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Shu L, Chen S, Zhao WW, Bai Y, Ma XC, Li XX, Li JR, Somsundaran P. High-performance liquid chromatography separation of phthalate acid esters with a MIL-53(Al)-packed column. J Sep Sci 2016; 39:3163-70. [DOI: 10.1002/jssc.201600364] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Revised: 06/21/2016] [Accepted: 06/21/2016] [Indexed: 01/14/2023]
Affiliation(s)
- Lun Shu
- Key Laboratory of Beijing on Regional Air Pollution Control; Beijing University of Technology; Beijing P. R. China
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering; College of Environmental and Energy Engineering; Beijing University of Technology; Beijing P. R. China
| | - Sha Chen
- Key Laboratory of Beijing on Regional Air Pollution Control; Beijing University of Technology; Beijing P. R. China
| | - Wei-Wei Zhao
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering; College of Environmental and Energy Engineering; Beijing University of Technology; Beijing P. R. China
| | - Yan Bai
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering; College of Environmental and Energy Engineering; Beijing University of Technology; Beijing P. R. China
| | - Xing-Chen Ma
- Key Laboratory of Beijing on Regional Air Pollution Control; Beijing University of Technology; Beijing P. R. China
| | - Xiao-Xin Li
- Key Laboratory of Beijing on Regional Air Pollution Control; Beijing University of Technology; Beijing P. R. China
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering; College of Environmental and Energy Engineering; Beijing University of Technology; Beijing P. R. China
| | - Jian-Rong Li
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering; College of Environmental and Energy Engineering; Beijing University of Technology; Beijing P. R. China
| | - P. Somsundaran
- Earth and Environment Engineering Department; Columbia University; New York USA
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Wang CY, Tung SY, Lo YS, Huang HL, Ko CH, Wu CH. Sensitivity enhancement in the fluorometric determination of aliphatic amines using naphthalene-2,3-dicarboxaldehyde derivatization followed by vortex-assisted liquid-liquid microextraction. Talanta 2016; 152:475-81. [PMID: 26992544 DOI: 10.1016/j.talanta.2016.02.043] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 02/17/2016] [Accepted: 02/18/2016] [Indexed: 11/25/2022]
Abstract
A highly sensitive liquid chromatographic method was developed for the fluorometric determination of trace amounts of linear aliphatic primary amines. Prior to extraction, amines were derivatized with naphthalene-2,3-dicarboxaldehyde (NDA) in the presence of cyanide ion (CN) and extracted by vortex-assisted liquid-liquid microextraction (VALLME). The optimum conditions were as follows: derivatization reaction time for 5 min in 2.0 mL aqueous donor samples with 50 μM NDA/CN, and 10mM borate buffer at pH 9; vortex extraction time for 20s in the VALLME step with 50 μL of isooctane as the extractant phase; centrifugation for 1 min at 6000 rpm. Under the optimum conditions, the limits of detection (LOD) were between 0.01 and 0.04 nmol L(-1). The calibration curves showed good linearity in the range of 0.1-20 nmol L(-1). In comparison with previous work using o-phthalaldehyde/2-mercaptoethanol derivatization, the method has much more stable fluorescent derivatives, higher fluorescence intensities, and greater extraction efficiencies. The sensitivity enhancement factors (SEF) were between 2 and 70, which is in good agreement with the theoretical values calculated from partition coefficients in VALLME system.
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Affiliation(s)
- Chin-Yi Wang
- Environmental Chemistry Laboratory, Department of Biomedical Engineering and Environmental Sciences, College of Nuclear Science, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Shu-Yin Tung
- Environmental Chemistry Laboratory, Department of Biomedical Engineering and Environmental Sciences, College of Nuclear Science, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Yu-Shiu Lo
- Environmental Chemistry Laboratory, Department of Biomedical Engineering and Environmental Sciences, College of Nuclear Science, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Hsien-Lu Huang
- Department of Nutrition and Health Science, Fooyin University, 151 Chinhsueh Road, Ta-Liao, Kaohsiung 83102, Taiwan
| | - Chun-Han Ko
- School of Forestry and Resource Conservation, National Taiwan University, Taipei 10617, Taiwan
| | - Chien-Hou Wu
- Environmental Chemistry Laboratory, Department of Biomedical Engineering and Environmental Sciences, College of Nuclear Science, National Tsing Hua University, Hsinchu 30013, Taiwan.
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Sun J, Wang W, Xu L, Dong J, Gao W, Huang Z, Cheng P, Zhou Z. Development of an air-flow-assisted extractive electrospray ionization source for rapid analysis of phthalic acid esters in spirits. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2015; 29:1711-1716. [PMID: 26331921 DOI: 10.1002/rcm.7268] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 06/23/2015] [Accepted: 06/25/2015] [Indexed: 06/05/2023]
Abstract
RATIONALE Although traditional analytical techniques like gas chromatography (GC) and GC/mass spectrometry (MS) offer satisfactory sensitivity and good reproducibility for the detection of phthalic acid esters (PAEs) in a variety of matrices, they involve laborious sample pretreatment, are time-consuming, and some are expensive and environmentally unfriendly. Furthermore, there are thousands of spirits on the market; therefore, rapid and high-throughout methods suitable for the consistent detection and quantification of PAEs in spirits are urgently required. METHODS A new atmospheric pressure ionization method, named air-flow-assisted extractive electrospray ionization (EESI), has been developed. It is a variant on EESI and possesses the advantages of both EESI and air-flow-assisted ionization for direct analysis of samples without pretreatment. Combined with a quadrupole time-of-flight (QTOF) mass spectrometer, the method was used to directly analyze four PAEs, i.e., dipentyl phthalate, diethyl phthalate, benzyl butyl phthalate and didecyl phthalate, in spirits. RESULTS The method exhibits excellent sensitivity, stability and convenience. Four different brands of spirits have been successfully analyzed. The total analysis time for one sample was within 1 min, and the limits of detection and limits of quantification of the samples are located in the range 0.011-0.035 and 0.038-0.087 µg g(-1), respectively. Very good linearities, with correlation coefficients of 0.9758-0.9990, are observed for the samples in the range of 0.035 to 10 µg g(-1). CONCLUSIONS The results indicate that the air-flow-assisted EESI combined with tandem mass spectrometry is an effective method for rapid and direct determination of PAEs in spirits without sample pretreatment.
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Affiliation(s)
- Jiufeng Sun
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Wentian Wang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Li Xu
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Junguo Dong
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Wei Gao
- Institute of Atmosphere Environment Security and Pollution Control, Jinan University, Guangzhou, 510632, China
| | - Zhengxu Huang
- Institute of Atmosphere Environment Security and Pollution Control, Jinan University, Guangzhou, 510632, China
| | - Ping Cheng
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Zhen Zhou
- Institute of Atmosphere Environment Security and Pollution Control, Jinan University, Guangzhou, 510632, China
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Wang J, Zhang L, Xin D, Yang Y. Dispersive Micro-Solid-Phase Extraction Based on Decanoic Acid Coated-Fe3O4Nanoparticles for HPLC Analysis of Phthalate Esters in Liquor Samples. J Food Sci 2015; 80:C2452-8. [DOI: 10.1111/1750-3841.13101] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Accepted: 09/06/2015] [Indexed: 12/16/2022]
Affiliation(s)
- Juan Wang
- Faculty of Life Science and Technology; Kunming Univ. of Science and Technology; Kunming 650500 China
| | - Lei Zhang
- Yunnan Jian niu Bio Technology Co., Ltd; Kunming 650033 China
| | - Dingqiang Xin
- Fumin Environmental Monitoring Station; Yunnan Province 650400 China
| | - Yaling Yang
- Faculty of Life Science and Technology; Kunming Univ. of Science and Technology; Kunming 650500 China
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25
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Vortex-assisted liquid–liquid–liquid microextraction (VALLLME) technique: A new microextraction approach for direct liquid chromatography and capillary electrophoresis analysis. Talanta 2015; 143:394-401. [DOI: 10.1016/j.talanta.2015.05.011] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Revised: 05/02/2015] [Accepted: 05/04/2015] [Indexed: 01/28/2023]
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