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Description
| - We determined the acidity constants of tebuconazole and penconazole, two fungicides from the group of 1,2,4-triazoles. Potentiometric titrations were performed in a 20 % (v/v) acetonitrile/water mixture at 25 °C and at a fixed ionic strength (KNO3, 0.1 mol*dm-3). The pKa values (representing thermodynamic constants) were determined to be 5.0 ± 0.1 and 5.2 ± 0.1 for tebuconazole and penconazole, respectively. These values could be used in pure water solutions to consider the protonated or deprotonated forms when studying the field behavior of these fungicides. Molecular modeling calculations allowed identifying the N4 atom as the protonation site.
- We determined the acidity constants of tebuconazole and penconazole, two fungicides from the group of 1,2,4-triazoles. Potentiometric titrations were performed in a 20 % (v/v) acetonitrile/water mixture at 25 °C and at a fixed ionic strength (KNO3, 0.1 mol*dm-3). The pKa values (representing thermodynamic constants) were determined to be 5.0 ± 0.1 and 5.2 ± 0.1 for tebuconazole and penconazole, respectively. These values could be used in pure water solutions to consider the protonated or deprotonated forms when studying the field behavior of these fungicides. Molecular modeling calculations allowed identifying the N4 atom as the protonation site. (en)
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Title
| - pK(a) constant determination of two triazole pesticides: tebuconazole and penconazole
- pK(a) constant determination of two triazole pesticides: tebuconazole and penconazole (en)
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skos:prefLabel
| - pK(a) constant determination of two triazole pesticides: tebuconazole and penconazole
- pK(a) constant determination of two triazole pesticides: tebuconazole and penconazole (en)
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skos:notation
| - RIV/60460709:41330/13:60283!RIV14-MSM-41330___
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http://linked.open...avai/predkladatel
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/60460709:41330/13:60283
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - triazole pesticides, potentiometric titrations, protonation constant, protonation site, molecular modeling (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
| - JOURNAL OF SOLUTION CHEMISTRY
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Komárek, Michael
- Čadková, Eva
- Bollinger, Jean-Claude
- Bordas, François
- Della Puppa, Loic
- Debord, Jean
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http://linked.open...ain/vavai/riv/wos
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issn
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number of pages
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http://localhost/t...ganizacniJednotka
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