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231223s2008 xx |||||o 00| ||eng c |
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|a 10.1007/s10646-007-0188-3
|2 doi
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|a pubmed24n0590.xml
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|a (DE-627)NLM176930604
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|a (NLM)18202915
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Kawakami, Tsuyoshi
|e verfasserin
|4 aut
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|a Monitoring of cholinesterase-inhibiting activity in water from the Tone canal, Japan, as a biomarker of ecotoxicity
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|c 2008
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 09.09.2008
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|a Date Revised 20.10.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a The cholinesterase (ChE)-inhibiting activity of water and the concentrations of representative inhibitors were monitored in the Tone canal, Japan, during April to December 2006. The ChE-inhibiting activity, measured by using horse serum as enzyme source, increased from late April to early June, and from September to October. Although the trends in the ChE-inhibiting activity of the samples were consistent with concentration changes of organophosphorus pesticides, ChE-inhibiting activity was not observed in samples replicated on the basis of the chemical concentrations detected. The water samples were treated with chlorine to enhance the ChE-inhibiting activity by conversion of thiophosphate pesticides to phosphate pesticides. The ChE-inhibiting activity increased in almost all the chlorine-treated samples, although organophosphorus pesticides were either not detected or detected in traces in the samples by gas chromatographic-mass spectrometric analysis. These results suggested that assay of ChE-inhibiting activity is important for evaluating the ecotoxicity of environmental water, because toxicological investigations based solely on inhibitor concentrations may underestimate the contamination. Furthermore, the combined method of oxidation by chlorination and the ChE assay is very effective for screening and monitoring of organophosphorus pesticides in environmental water
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|a Journal Article
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|a Biomarkers
|2 NLM
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| 650 |
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|a Carbamates
|2 NLM
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| 650 |
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7 |
|a Cholinesterase Inhibitors
|2 NLM
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| 650 |
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|a Disinfectants
|2 NLM
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| 650 |
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|a Organophosphorus Compounds
|2 NLM
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| 650 |
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|a Pesticides
|2 NLM
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| 650 |
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|a Water Pollutants, Chemical
|2 NLM
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| 650 |
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7 |
|a Chlorine
|2 NLM
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| 650 |
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|a 4R7X1O2820
|2 NLM
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| 700 |
1 |
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|a Takezawa, Aya
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Nishi, Iwaki
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Watanabe, Eiki
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ishizaka, Masumi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Eun, Heesoo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Onodera, Sukeo
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Ecotoxicology (London, England)
|d 1992
|g 17(2008), 4 vom: 17. Mai, Seite 221-8
|w (DE-627)NLM098212214
|x 1573-3017
|7 nnns
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| 773 |
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|g volume:17
|g year:2008
|g number:4
|g day:17
|g month:05
|g pages:221-8
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|u http://dx.doi.org/10.1007/s10646-007-0188-3
|3 Volltext
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