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| Description
| - Potenciometrická metoda na bázi iontově selektivních elektrod, jak se ukázalo, může byt efektivní metodou pro charakterizaci rozpoznávacích míst v calix[2]pyridino[2]pyrrolovém receptoru (CPP). Potenciometrická měření pH za pomoci experimentálních PVC-membrán na bází CPP prokázala u testovaného receptoru existenci jak mono- (pKB1 8.5-8.9), tak diprotonováné forem (pKB2 3.3-3.8). Proměna iontových míst v membráně pomohla ověřit roli kolumbických interakcí a vodikových vazeb při rozpoznávacím procesu mezí CPP a anionty. Studium potenciometrické selektivity ukázal, že CPP preferuje %22Y-shaped%22 anionty (acetat, laktat, benzoat) nad sferickými (fluoridy, chloridy), fluoridy nad chloridy, ortho-izomery nad meta- and para- isomery v případe hydroxybenzoatů (salicylat a protějšek). V tomto kontextu výhody potenciometrických stanovení acetylsalicilové kyseliny s použitím optimalizovaných PVC-membrán na bází CPP před tradičními PVC-membránami na bázi iontoměniče bylo předs (cs)
- The ion selective electrode (ISE)-based potentiometric approach is shown to be an effective means of characterizing the anion recognition sites in the molecular receptor calix[2]pyridino[2]pyrrole (CPP). In particular, potentiometric pH-measurements involving the use of experimental PVC-membranes based on CPP revealed the existence of both mono- and diprotonated forms of the receptor under readily accessible conditions. Based on these analyses, apparent surface protonation constants for this heterocalixarene were found to lie between 8.5-8.9 (pKB1) and 3.3-3.8 (pKB2). CPP was found to interact with targeted anionic analytes based on both coulombic and hydrogen bond interactions, as inferred from varying the kinds of ionic sites present within the membrane phase. Potentiometric selectivity studies revealed that CPP preferred %22Y-shaped%22 anions (e.g. acetate, lactate, benzoate) over spherical anions (e.g. fluoride and chloride), fluoride over chloride within the set o
- The ion selective electrode (ISE)-based potentiometric approach is shown to be an effective means of characterizing the anion recognition sites in the molecular receptor calix[2]pyridino[2]pyrrole (CPP). In particular, potentiometric pH-measurements involving the use of experimental PVC-membranes based on CPP revealed the existence of both mono- and diprotonated forms of the receptor under readily accessible conditions. Based on these analyses, apparent surface protonation constants for this heterocalixarene were found to lie between 8.5-8.9 (pKB1) and 3.3-3.8 (pKB2). CPP was found to interact with targeted anionic analytes based on both coulombic and hydrogen bond interactions, as inferred from varying the kinds of ionic sites present within the membrane phase. Potentiometric selectivity studies revealed that CPP preferred %22Y-shaped%22 anions (e.g. acetate, lactate, benzoate) over spherical anions (e.g. fluoride and chloride), fluoride over chloride within the set o (en)
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| Title
| - Potentiometric response and mechanism of anionic recognition of heterocalixarene-based ion selective electrodes
- Potenciometrická odezva a mechanismus rozpoznavání anionu pomocí iontově selektivních elektrod na bazi heterocalixarenů (cs)
- Potentiometric response and mechanism of anionic recognition of heterocalixarene-based ion selective electrodes (en)
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| skos:prefLabel
| - Potentiometric response and mechanism of anionic recognition of heterocalixarene-based ion selective electrodes
- Potenciometrická odezva a mechanismus rozpoznavání anionu pomocí iontově selektivních elektrod na bazi heterocalixarenů (cs)
- Potentiometric response and mechanism of anionic recognition of heterocalixarene-based ion selective electrodes (en)
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| skos:notation
| - RIV/60461373:22340/07:00019292!RIV08-MSM-22340___
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| http://linked.open.../vavai/riv/strany
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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/60461373:22340/07:00019292
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - potentiometry; ion selective electrodes; hydroxybenzoate; heterocalixarene; anion recognition (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
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| http://linked.open...in/vavai/riv/obor
| |
| 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
| - Král, Vladimír
- Sýkora, David
- Shishkanova, Tatiana
- Sessler, J.
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| http://linked.open...n/vavai/riv/zamer
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| issn
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| number of pages
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| http://localhost/t...ganizacniJednotka
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