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Determination of aniline derivatives in water samples after preconcentration with oxidized multiwalled carbon nanotubes as solid-phase extraction disk

Hideyuki KATSUMATA, Yuta ODA, Satoshi KANECO, Tohru SUZUKI, Kiyohisa OHTA

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 3,   Pages 270-275 doi: 10.1007/s11705-012-1298-x

Abstract: Anilines were extracted onto OMWCNT disk and then determined by high performance liquid chromatography (HPLC) with UV detector.

Keywords： aniline determination     solid-phase extraction     oxidized multiwalled carbon nanotubes     water sample     HPLC-UV    

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Freshwater algae chemotaxonomy by high-performance liquid chromatographic (HPLC) analysis

Yansong HOU, Wei LIANG, Liping ZHANG, Shuiping CHENG, Feng HE, Zhenbin WU

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 1,   Pages 84-91 doi: 10.1007/s11783-010-0283-1

Abstract: A high-performance liquid chromatographic (HPLC) method based on a reverse-phase C nonpolar column wasBased on the elution order using HPLC, 19 pigments were identified, and they were chlorophyllide , 19A comparison study of cell microscopic counts and accessory pigment analysis indicated that HPLC analysis

Keywords： high-performance liquid chromatographic (HPLC)     algae     pigment     chemotaxonomy    

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Removal of virus aerosols by the combination of filtration and UV-C irradiation

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 3, doi: 10.1007/s11783-023-1627-y

Abstract:

● The removal of virus aerosols by filtration and UV-C irradiation

Keywords： Filtration system     UV-C irradiation     Virus aerosol     Public health     COVID-19    

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and bacteriophage MS2 disinfection by UV, ozone and the combined UV and ozone processes

Jingyun FANG,Huiling LIU,Chii SHANG,Minzhen ZENG,Mengling NI,Wei LIU

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 4,   Pages 547-552 doi: 10.1007/s11783-013-0620-2

Abstract: However, less is known about the disinfection performance of UV and ozone (UV/ozone) coexposure and sequentialUV-followed-by-ozone (UV-ozone) and ozone-followed-by-UV (ozone-UV) exposures.In this study, inactivation of and bacteriophage MS2 by UV, ozone, UV/ozone coexposure, and sequentialUV-ozone and ozone-UV exposures was investigated and compared.Little enhancement on inactivation was found after the sequential UV-ozone or ozone-UV exposures.

Keywords： bacteria inactivation     photoreactivation     water disinfection     UV     ozone    

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Enhanced formation of trihalomethane disinfection byproducts from halobenzoquinones under combined UV

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 6, doi: 10.1007/s11783-021-1510-7

Abstract:

• 2,6-DCBQ and TCBQ generated THMs differently in chlorine and UV/chlorine

Keywords： Halobenzoquinone     Trihalomethane     Chlorine disinfection     UV irradiation     Disinfection byproducts     CombinedUV/chlorine    

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Decomposition of aqueous chlorinated contaminants by UV irradiation with H

Eunsung KAN,Chang-Il KOH,Kyunghyuk LEE,Joonwun KANG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 3,   Pages 429-435 doi: 10.1007/s11783-014-0677-6

Abstract: rates of carbon tetrachloride (CCl ) and 2,4-dichlorophenol (2,4-DCP) in water by the ultraviolet (UV) light irradiation alone and H O /UV were experimentally investigated.capacities of the two different ultraviolet light sources (low and medium pressure Hg arc) in H O /UVThe low or medium UV lamp alone resulted in a 60%–90% decomposition of 2,4-DCP while a slight additionthan the low pressure UV lamp alone.

Keywords： H2O2/ultraviolet (UV) light     advanced oxidation     UV light irradiation     chlorinated    

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Online recognition of drainage type based on UV-vis spectra and derivative neural network algorithm

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1430-6

Abstract:

• UV-vis absorption analyzer was applied in drainage type online recognition

Keywords： Drainage online recognition     UV-vis spectra     Derivative spectrum     Convolutional neural network    

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HPLC determination of glyoxal in aldehyde solution with 3-methyl-2-benzothiazolinone hydrazone

Yamei ZHU, Xiaoli YAO, Shaohui CHEN, Qun CUI, Haiyan WANG

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 1,   Pages 117-121 doi: 10.1007/s11705-010-0535-4

Abstract: by reaction of glyoxal and 3-methyl-2-benzothiazolinone hydrazone (MBTH) in the Ultraviolet-visible (UV-vis) spectral region, a HPLC method was developed for the determination of glyoxal in acetaldehyde solutionGlyoxal was derivatised from MBTH and the derivatives (diazine) were analyzed by HPLC for identificationyellow dye with a maximum molar absorptivity at 401 nm and its retention time was 5.2 min under optimal HPLCThis efficient HPLC technique is also proposed for detecting other dicarbonyl compounds besides glyoxal

Keywords： HPLC     glyoxal     3-methyl-2-benzothiazolinone hydrazone     diazine     dicarbonyl compounds    

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Photolysis and photooxidation of typical gaseous VOCs by UV Irradiation: Removal performance and mechanisms

In-Sun Kang, Jinying Xi, Hong-Ying Hu

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 3, doi: 10.1007/s11783-018-1032-0

Abstract: Photodegradation by ultraviolet irradiation (UV) is increasingly applied in volatile organic compoundhydrocarbon derivatives, at 150–200 ppm in air and nitrogen gas were treated by a laboratory-scale UVreactor with 185/254 nm irradiation to systematically investigate their removal and conversion by UVThe carbon balance of each VOC during UV irradiation was analyzed based on the VOC, CO and PM concentrationsAlthough the UV technique exhibited a high VOC removal efficiency, its drawbacks, specifically low mineralization

Keywords： VOCs     UV photodegradation     Particulate matters     Ozone    

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Effects of water quality on the coagulation performances of humic acids irradiated with UV light

Wendong WANG,Qinghai FAN,Zixia QIAO,Qin YANG,Yabo WANG,Xiaochang WANG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 1,   Pages 147-154 doi: 10.1007/s11783-014-0749-7

Abstract: including pH, turbidity, alkalinity, and hardness on the removal of humic acid were investigated in a UVOur results suggested that UV light radiation could effectively improve the removal rate of humic acidthe variations of the selected water quality parameters had little adverse effect on the function of UVAfter UV light radiation, the removal rate of the nitro-humic acid (NHA) increased from 20% to 60% inThe formation of positive charged sites after UV light radiation was considered to be the primary factor

Keywords： coagulation     drinking water     humic acid     UV light radiation     water quality    

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Kinetics of UV curable alkyl 3-mercaptopropionate-vinyl silizane

SONG Jiale, CHEN Lixin, WANG Yazhou, CHEN Weiwei, WANG Rumin

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 4,   Pages 390-395 doi: 10.1007/s11705-008-0080-6

Abstract: The kinetics of alkyl 3-mercptopropionate-vinyl silizane under UV irradiation is investigated by usingconversion of vinyl group has been achieved in the presence of a low concentration photoinitiator under UV

Keywords： step-growth     irradiation     bimolecular     preceramic     concentration photoinitiator    

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Flow cytometric assessment of the effects of chlorine, chloramine, and UV on bacteria by using nucleic

Xuebiao Nie, Wenjun Liu, Mo Chen, Minmin Liu, Lu Ao

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 6, doi: 10.1007/s11783-016-0884-4

Abstract: showed more resistance to UV irradiation than by FCM.MP-UV was a stronger inhibitor of metabolic activity than LP-UV.Low-pressure (LP) UV or medium-pressure (MP) UV treatments exerted no significant effects on membraneThe metabolic activity of the bacteria decreased with increasing UV dosage, and MP-UV was a strongerinhibitor of metabolic activity than LP-UV.

Keywords： Flow cytometry     Escherichia coli     Staphylococcusaureus     UV     CTC     SYTO 9    

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Prospect in Creating New Drugs from Chinese Herbal Medicine

Yu Dequan

Strategic Study of CAE 1999, Volume 1, Issue 2,   Pages 87-90

Abstract: product research should be featured by the application of modern spectroscopic techniques, such as HPLC/MS/MS and HPLC/NMR and so on.

Keywords： research     creating new drug     chemical constituent of Chinese herbal medicine     modem spectroscopic technique     HPLC/MS/MS     HPLC/NMR    

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Functional flax fiber with UV-induced switchable wettability for multipurpose oil-water separation

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 12, doi: 10.1007/s11783-022-1588-6

Abstract:

● A PAA-ZnO-HDTMS flax fiber with UV-induced switchable wettability

Keywords： Flax fiber     Switchable wettability     ZnO-HDTMS coating     Oil-water separation    

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Oxidation and biotoxicity assessment of microcystin-LR using different AOPs based on UV, O

Siyi Lu, Naiyu Wang, Can Wang

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 3, doi: 10.1007/s11783-018-1030-2

Abstract: The removal characteristics of UV/H O and O /H O advanced oxidation processes and their individualResults showed that the UV/H O process and O /H O were effective methods to remove MC-LR from water, and they two performed better than UV-, O -, H O -alone processes under the same conditions.The effects of UV intensity, H O concentration and O concentration on the removal performance wereThe synergistic effects between UV and H O , O and H O were observed.

Keywords： Microcystin-LR     Advanced oxidation processes (AOPs)     Biotoxicity     Synergistic effects    

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Title Author Date Type Operation

Determination of aniline derivatives in water samples after preconcentration with oxidized multiwalled carbon nanotubes as solid-phase extraction disk

Hideyuki KATSUMATA, Yuta ODA, Satoshi KANECO, Tohru SUZUKI, Kiyohisa OHTA

Journal Article

Freshwater algae chemotaxonomy by high-performance liquid chromatographic (HPLC) analysis

Yansong HOU, Wei LIANG, Liping ZHANG, Shuiping CHENG, Feng HE, Zhenbin WU

Journal Article

Removal of virus aerosols by the combination of filtration and UV-C irradiation

Journal Article

and bacteriophage MS2 disinfection by UV, ozone and the combined UV and ozone processes

Jingyun FANG,Huiling LIU,Chii SHANG,Minzhen ZENG,Mengling NI,Wei LIU

Journal Article

Enhanced formation of trihalomethane disinfection byproducts from halobenzoquinones under combined UV

Journal Article

Decomposition of aqueous chlorinated contaminants by UV irradiation with H

Eunsung KAN,Chang-Il KOH,Kyunghyuk LEE,Joonwun KANG

Journal Article

Online recognition of drainage type based on UV-vis spectra and derivative neural network algorithm

Journal Article

HPLC determination of glyoxal in aldehyde solution with 3-methyl-2-benzothiazolinone hydrazone

Yamei ZHU, Xiaoli YAO, Shaohui CHEN, Qun CUI, Haiyan WANG

Journal Article

Photolysis and photooxidation of typical gaseous VOCs by UV Irradiation: Removal performance and mechanisms

In-Sun Kang, Jinying Xi, Hong-Ying Hu

Journal Article

Effects of water quality on the coagulation performances of humic acids irradiated with UV light

Wendong WANG,Qinghai FAN,Zixia QIAO,Qin YANG,Yabo WANG,Xiaochang WANG

Journal Article

Kinetics of UV curable alkyl 3-mercaptopropionate-vinyl silizane

SONG Jiale, CHEN Lixin, WANG Yazhou, CHEN Weiwei, WANG Rumin

Journal Article

Flow cytometric assessment of the effects of chlorine, chloramine, and UV on bacteria by using nucleic

Xuebiao Nie, Wenjun Liu, Mo Chen, Minmin Liu, Lu Ao

Journal Article

Prospect in Creating New Drugs from Chinese Herbal Medicine

Yu Dequan

Journal Article

Functional flax fiber with UV-induced switchable wettability for multipurpose oil-water separation

Journal Article

Oxidation and biotoxicity assessment of microcystin-LR using different AOPs based on UV, O

Siyi Lu, Naiyu Wang, Can Wang

Journal Article