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Chengkun WANG, Xiaojian ZHANG, Jun WANG, Chao CHEN

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 6,   Pages 770-777 doi: 10.1007/s11783-012-0412-0

Abstract: An ultra-performance liquid chromatography-tandem mass spectrometry method with solid phase extraction

Keywords： N-nitrosamines     water treatment plant     distribution system     ultra-performance liquid chromatography-tandemmass spectrometry    

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An efficient resin for solid-phase extraction and determination by UPLCMS/MS of 44 pharmaceutical personal care products in environmental waters

Feng Zhu, Zhijian Yao, Wenliang Ji, Deye Liu, Hao Zhang, Aimin Li, Zongli Huo, Qing Zhou

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 3, doi: 10.1007/s11783-020-1228-y

Abstract: optimal conditions, the average absolute recovery of 44 PPCPs was 75.6% using GCHM, indicating a better performanceSPE with home-made hydrophilic polymeric sorbent followed by ultra-performance liquid chromatographyand tandem mass spectrometry was validated, and the method achieved good linearity (r2>0.991, for all

Keywords： Hydrophilic resin     Solid phase extraction     Pharmaceuticals and personal care product     Ultra-performanceliquid chromatography and tandem mass spectrometry     Environmental water    

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Perfluorocarboxylic acids (PFCAs) and perfluoroalkyl sulfonates (PFASs) in surface and tap water around Lake Taihu in China

Yong QIU, He JING, Hanchang SHI,

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 3,   Pages 301-310 doi: 10.1007/s11783-010-0236-8

Abstract: Perfluorinated compounds (PFCs) are ubiquitously distributed in the environment mainly as perfluoro-carboxylic acids (PFCAs) and perfluoroalkyl sulfonates (PFASs). In this paper, six PFCAs and two PFASs were quantified in surface and tap water samples from 12 sites around Lake Taihu near Shanghai City in East China. Predominant PFCs were perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS), of which the concentration ranges were 6.8–206 and 1.2–45 ng·L, the geometric means were 35.3 and 9.4 ng·L, and the median (quartile range) values were 31.4 (34.4) and 10.4 (10.7) ng·L, respectively. Other PFCs were also detected but in much lower concentrations than PFOA. The sources of the PFCs were expected to be direct industrial discharges in the Lake Taihu area, and this area was also a possible source of PFCs contaminations in Shanghai district in the downstream. PFCs distributions were found different in the upstream, downstream and north part of Lake Taihu. Occurrences of PFCs in the tap water in Lake Taihu area indicated their exposure to the local people. A brief estimation of the environmental risks by PFCs implied no acute or immediate risks from PFCs to local human health, but chronic risks from PFOA in the tap water should be considered in the downstream regions.

Keywords： surface and tap water     perfluorocarboxylic acids (PFCAs)     perfluoroalkyl sulfonates (PFASs)     Lake Taihu area     ultraperformance liquid chromatography with tandem mass spectrometry (UPLC-MS)    

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Simultaneous quantification of several classes of antibiotics in water, sediments, and fish muscles by liquidchromatography–tandem mass spectrometry

WEI Yimei,ZHANG Yuan,XU Jian,GUO Changsheng,LI Lei,FAN Wenhong

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 3,   Pages 357-371 doi: 10.1007/s11783-013-0580-6

Abstract: Sediment samples were solvent-extracted, followed by tandem SPE (strong anion exchange (SAX) + HLB) clean-upsLiquid chromatography–tandem mass spectrometry (LC-MS/MS) with multiple reaction monitoring (MRM) detection

Keywords： antibiotics     liquid chromatography–tandem mass spectrometry (LC-MS/MS)     water     sediment     fish muscle    

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Trace analysis of off-flavor/odor compounds in water using liquid-liquid microextraction coupled withgas chromatography—positive chemical ionization-tandem mass spectrometry

Jian LU,Paul S. WILLS,P. CHRIS WILSON

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 3,   Pages 477-481 doi: 10.1007/s11783-015-0820-z

Abstract: off-flavor/odor compounds in fresh and salt water using gas chromatography with chemical ionization-tandemmass spectrometry.

Keywords： off-flavor/odor compounds     liquid-liquid microextraction     gas chromatography-tandem mass spectrometry    

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Characteristics and removal mechanism of the precursors of N-chloro-2,2-dichloroacetamide in a drinking water treatment process at Taihu Lake

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 5, doi: 10.1007/s11783-020-1338-6

Abstract:

• N-Cl-DCAM, an emerging N-DBP in drinking water was investigated.

Keywords： N-chloro-2     2-dichloroacetamide     Liquid chromatography with tandem mass spectrometry     Precursors     Removal    

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Peroxyacetyl nitrate measurements by thermal dissociation–chemical ionization mass spectrometry in anurban environment: performance and characterizations

Xinfeng Wang, Tao Wang, Likun Xue, Wei Nie, Zheng Xu, Steven C. N. Poon, Wenxing Wang

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 4, doi: 10.1007/s11783-017-0925-7

Abstract: A rapid and highly selective technique of thermal dissociation–chemical ionization mass spectrometryIn this study, we tested the interference of the PAN signal induced by NO, evaluated the performance

Keywords： TD-CIMS     Peroxyacetyl nitrate     Interference     Photochemical pollution     Formation efficiency    

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Photocatalytic degradation of methyl orange using ZnO/TiO composites

Ming GE , Changsheng GUO , Xingwang ZHU , Lili MA , Wei HU , Yuqiu WANG , Zhenan HAN ,

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 3,   Pages 271-280 doi: 10.1007/s11783-009-0035-2

Abstract: A sample analysis was conducted using liquid chromatography coupled with electrospray ionization ion-trapmass spectrometry.

Keywords： photocatalytic degradation     methyl orange     ZnO/TiO2 composites     high performance liquid chromatographymass spectrometry (HPLC-MS)    

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Research progress in liquid desiccant air-conditioning devices and systems

Xiaohua LIU, Yi JIANG, Shuanqiang LIU, Xiaoyang CHEN,

Frontiers in Energy 2010, Volume 4, Issue 1,   Pages 55-65 doi: 10.1007/s11708-009-0082-1

Abstract: The developments on liquid desiccant air-conditioning systems were illustrated and summarized in thisIn order to obtain a better dehumidification (or humidification) performance, liquid desiccant shouldextra heat exchanger and total heat recovery device, which could be combined to set up various kinds of liquidThe liquid desiccant air processor-based temperature and humidity-independent control air-conditioning

Keywords： liquid desiccant     heat and mass transfer     performance     air-conditioning    

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Studies on the liquid-liquid interfacial mass transfer process using holographic interferometry

ZHAO Chaofan, ZHU Chunying, MA Youguang

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 1,   Pages 1-4 doi: 10.1007/s11705-008-0006-3

Abstract: This paper aims at the interfacial phenomena of liquid-liquid mass transfer and its characteristic.concentration distributions on the aqueous side were obtained according to holographic diagrams of massIt is indicated that the liquid-liquid mass transfer process is approximately in accordance with two-filmtheory, the interfacial performance may be changed by the addition of the solute, and the interfaceof liquid-liquid is non-equilibrium thermodynamically during the mass transfer process.

Keywords： liquid-liquid     different     real-time holographic     addition     transfer    

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Removable Dyes—The Missing Link for In-Depth N-glycan Analysis via Multi-Method Approaches

Samanta Cajic,René Hennig,Valerian Grote,Udo Reichl,Erdmann Rapp,

Engineering doi: 10.1016/j.eng.2023.02.016

Abstract: laser-induced fluorescence detection (xCGE-LIF) and matrix-assisted laser desorption/ionization time-of-flight massspectrometry (MALDI-TOF-MS).

Keywords： Glycoproteins     N-glycans     Reversible labeling     Hydrophilic interaction liquid chromatography     Capillary gelelectrophoresis     Mass spectrometry    

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considerations for semi-quantification of total naphthenic acids in oil sands process affected water by massspectrometry: A review

Kevin A. Kovalchik, Matthew S. MacLennan, Kerry M. Peru, John V. Headley, David D.Y. Chen

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 3,   Pages 497-507 doi: 10.1007/s11705-017-1652-0

Abstract: informs the design of future standard methods for the semi-quantification of total naphthenic acids using massspectrometry.The design considerations are amenable to both time-of-flight and Orbitrap mass spectrometers.

Keywords： total naphthenic acids     environmental samples     oil sands process affected water     polar organics     mass spectrometry    

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Gas marbles: ultra-long-lasting and ultra-robust bubbles formed by particle stabilization

Frontiers of Chemical Science and Engineering   Pages 1681-1687 doi: 10.1007/s11705-022-2180-0

Abstract: Their rupture can be attributed to liquid evaporation, thin film drainage and the nuclei of environmentalInspired by particle-stabilized interfaces in Pickering emulsions, armored bubbles and liquid marble,bubbles are protected by an enclosed particle-entrapping liquid thin film, and the resultant soft objectsubjected to overpressure and underpressure, owing to the compact particle monolayer straddling the surface liquid

Keywords： bubble     particles     interfaces     armored bubble     liquid marble     gas marble     Pickering emulsion    

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Simulation of interfacial Marangoni convection in gas-liquid mass transfer by lattice Boltzmann method

Shuyong CHEN, Xigang YUAN, Bo FU, Kuotsung YU

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 4,   Pages 448-454 doi: 10.1007/s11705-011-1142-8

Abstract: Interfacial Marangoni convection has significant effect on gas-liquid and/or liquid-liquid mass transferself-renewable interface model, are proposed for the simulation of interfacial Marangoni convection in gas-liquidmass transfer process.

Keywords： interfacial Marangoni convection     lattice Boltzmann method     gas-liquid mass transfer    

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Detection of geosmin and 2-methylisoborneol by liquid-liquid extraction-gas chromatograph mass spectrum(LLE-GCMS) and solid phase extraction-gas chromatograph mass spectrum (SPE-GCMS)

MA Xiaoyan, CHEN Beibei, LI Qingsong, ZHANG Qiaoli, GU Guofen

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 3,   Pages 286-291 doi: 10.1007/s11783-007-0048-7

Abstract: LC-18 column was employed in solid phase extraction (SPE), 1.0 mL of hexane was adopted in liquid-liquidextraction (LLE), and the extracts were analyzed by gas chromatograph mass spectrum (GCMS) in selected

Keywords： summer     flocculation     simple     Shanghai     spectrum    

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Detecting

Chengkun WANG, Xiaojian ZHANG, Jun WANG, Chao CHEN

Journal Article

An efficient resin for solid-phase extraction and determination by UPLCMS/MS of 44 pharmaceutical personal care products in environmental waters

Feng Zhu, Zhijian Yao, Wenliang Ji, Deye Liu, Hao Zhang, Aimin Li, Zongli Huo, Qing Zhou

Journal Article

Perfluorocarboxylic acids (PFCAs) and perfluoroalkyl sulfonates (PFASs) in surface and tap water around Lake Taihu in China

Yong QIU, He JING, Hanchang SHI,

Journal Article

Simultaneous quantification of several classes of antibiotics in water, sediments, and fish muscles by liquidchromatography–tandem mass spectrometry

WEI Yimei,ZHANG Yuan,XU Jian,GUO Changsheng,LI Lei,FAN Wenhong

Journal Article

Trace analysis of off-flavor/odor compounds in water using liquid-liquid microextraction coupled withgas chromatography—positive chemical ionization-tandem mass spectrometry

Jian LU,Paul S. WILLS,P. CHRIS WILSON

Journal Article

Characteristics and removal mechanism of the precursors of N-chloro-2,2-dichloroacetamide in a drinking water treatment process at Taihu Lake

Journal Article

Peroxyacetyl nitrate measurements by thermal dissociation–chemical ionization mass spectrometry in anurban environment: performance and characterizations

Xinfeng Wang, Tao Wang, Likun Xue, Wei Nie, Zheng Xu, Steven C. N. Poon, Wenxing Wang

Journal Article

Photocatalytic degradation of methyl orange using ZnO/TiO composites

Ming GE , Changsheng GUO , Xingwang ZHU , Lili MA , Wei HU , Yuqiu WANG , Zhenan HAN ,

Journal Article

Research progress in liquid desiccant air-conditioning devices and systems

Xiaohua LIU, Yi JIANG, Shuanqiang LIU, Xiaoyang CHEN,

Journal Article

Studies on the liquid-liquid interfacial mass transfer process using holographic interferometry

ZHAO Chaofan, ZHU Chunying, MA Youguang

Journal Article

Removable Dyes—The Missing Link for In-Depth N-glycan Analysis via Multi-Method Approaches

Samanta Cajic,René Hennig,Valerian Grote,Udo Reichl,Erdmann Rapp,

Journal Article

considerations for semi-quantification of total naphthenic acids in oil sands process affected water by massspectrometry: A review

Kevin A. Kovalchik, Matthew S. MacLennan, Kerry M. Peru, John V. Headley, David D.Y. Chen

Journal Article

Gas marbles: ultra-long-lasting and ultra-robust bubbles formed by particle stabilization

Journal Article

Simulation of interfacial Marangoni convection in gas-liquid mass transfer by lattice Boltzmann method

Shuyong CHEN, Xigang YUAN, Bo FU, Kuotsung YU

Journal Article

Detection of geosmin and 2-methylisoborneol by liquid-liquid extraction-gas chromatograph mass spectrum(LLE-GCMS) and solid phase extraction-gas chromatograph mass spectrum (SPE-GCMS)

MA Xiaoyan, CHEN Beibei, LI Qingsong, ZHANG Qiaoli, GU Guofen

Journal Article