Matches in SemOpenAlex for { <https://semopenalex.org/work/W2106528766> ?p ?o ?g. }
Showing items 1 to 90 of
90
with 100 items per page.
- W2106528766 endingPage "1613" @default.
- W2106528766 startingPage "1613" @default.
- W2106528766 abstract "Cyclic voltammetry and differential-pulse voltammetry (DPV) were used in a comparative investigation into the electrochemical oxidation of guanine at a carbon paste electrode (CPE) and a planar glassy carbon electrode (GCE). The DPV peak potential and peak current were found to be dependent on the pH of the 0.5 mol dm–3 phosphate buffer over the range 3.0–9.0 for both electrodes. The effect of ionic strength was investigated over the concentration range 0.05–0.5 mol dm–3(pH 5.0). Slightly larger peak currents were obtained with 0.5 mol dm–3 supporting electrolyte at both electrodes; however, an approximate 2.5-fold increase in the anodic response was observed with the CPE. The electro-oxidation of guanine was found to occur with the production of one voltammetric peak; the product probably undergoes further oxidation to yield two peaks on the second anodic scan. Under these conditions the electrode reaction was identified as being irreversible. Systematic studies into the possible adsorption of guanine were performed on a 1 × 10–5 mol dm–3 guanine solution in 0.5 mol dm–3 phosphate buffer by DPV, utilizing CPEs and GCEs over the pH range 5.0–9.0. The peak currents did not increase with various accumulation potentials and times, indicating that the parent compound does not adsorb at either of the electrode surfaces studied. The optimum medium for quantitative determination at a CPE or a GCE by DPV was found to be 0.5 mol dm–3 phosphate buffer (pH 5.0). Anodic peak currents were found to be linearly related to concentration over the range 1 × 10–5–1 × 10–7 mol dm–3 and 1 × 10–5–7.5 × 10–7 mol dm–3 for the CPE and GCE, respectively. Guanine was successfully determined in a deoxyribonucleic acid sample, following acid hydrolysis, with use of DPV. The developed method is more sensitive than those of previous voltammetric studies." @default.
- W2106528766 created "2016-06-24" @default.
- W2106528766 creator A5014291559 @default.
- W2106528766 creator A5015559660 @default.
- W2106528766 date "1992-01-01" @default.
- W2106528766 modified "2023-10-11" @default.
- W2106528766 title "Comparative study of the voltammetric behaviour of guanine at carbon paste and glassy carbon electrodes and its determination in purine mixtures by differential-pulse voltammetry" @default.
- W2106528766 cites W1582103914 @default.
- W2106528766 cites W1971298927 @default.
- W2106528766 cites W1981471621 @default.
- W2106528766 cites W1997760693 @default.
- W2106528766 cites W1999096896 @default.
- W2106528766 cites W1999230853 @default.
- W2106528766 cites W2004547494 @default.
- W2106528766 cites W2028450354 @default.
- W2106528766 cites W2039664145 @default.
- W2106528766 cites W2052173000 @default.
- W2106528766 cites W2057146575 @default.
- W2106528766 cites W2065448182 @default.
- W2106528766 cites W2086401468 @default.
- W2106528766 cites W2105816609 @default.
- W2106528766 cites W999466006 @default.
- W2106528766 doi "https://doi.org/10.1039/an9921701613" @default.
- W2106528766 hasPublicationYear "1992" @default.
- W2106528766 type Work @default.
- W2106528766 sameAs 2106528766 @default.
- W2106528766 citedByCount "27" @default.
- W2106528766 countsByYear W21065287662012 @default.
- W2106528766 countsByYear W21065287662015 @default.
- W2106528766 countsByYear W21065287662016 @default.
- W2106528766 countsByYear W21065287662019 @default.
- W2106528766 countsByYear W21065287662020 @default.
- W2106528766 crossrefType "journal-article" @default.
- W2106528766 hasAuthorship W2106528766A5014291559 @default.
- W2106528766 hasAuthorship W2106528766A5015559660 @default.
- W2106528766 hasConcept C104317684 @default.
- W2106528766 hasConcept C113196181 @default.
- W2106528766 hasConcept C13965031 @default.
- W2106528766 hasConcept C147789679 @default.
- W2106528766 hasConcept C17525397 @default.
- W2106528766 hasConcept C179104552 @default.
- W2106528766 hasConcept C185592680 @default.
- W2106528766 hasConcept C2777869211 @default.
- W2106528766 hasConcept C2778117296 @default.
- W2106528766 hasConcept C2778301229 @default.
- W2106528766 hasConcept C2779525745 @default.
- W2106528766 hasConcept C2779603750 @default.
- W2106528766 hasConcept C2779896888 @default.
- W2106528766 hasConcept C43617362 @default.
- W2106528766 hasConcept C512185932 @default.
- W2106528766 hasConcept C52859227 @default.
- W2106528766 hasConcept C55493867 @default.
- W2106528766 hasConceptScore W2106528766C104317684 @default.
- W2106528766 hasConceptScore W2106528766C113196181 @default.
- W2106528766 hasConceptScore W2106528766C13965031 @default.
- W2106528766 hasConceptScore W2106528766C147789679 @default.
- W2106528766 hasConceptScore W2106528766C17525397 @default.
- W2106528766 hasConceptScore W2106528766C179104552 @default.
- W2106528766 hasConceptScore W2106528766C185592680 @default.
- W2106528766 hasConceptScore W2106528766C2777869211 @default.
- W2106528766 hasConceptScore W2106528766C2778117296 @default.
- W2106528766 hasConceptScore W2106528766C2778301229 @default.
- W2106528766 hasConceptScore W2106528766C2779525745 @default.
- W2106528766 hasConceptScore W2106528766C2779603750 @default.
- W2106528766 hasConceptScore W2106528766C2779896888 @default.
- W2106528766 hasConceptScore W2106528766C43617362 @default.
- W2106528766 hasConceptScore W2106528766C512185932 @default.
- W2106528766 hasConceptScore W2106528766C52859227 @default.
- W2106528766 hasConceptScore W2106528766C55493867 @default.
- W2106528766 hasIssue "10" @default.
- W2106528766 hasLocation W21065287661 @default.
- W2106528766 hasOpenAccess W2106528766 @default.
- W2106528766 hasPrimaryLocation W21065287661 @default.
- W2106528766 hasRelatedWork W1993707610 @default.
- W2106528766 hasRelatedWork W2010744507 @default.
- W2106528766 hasRelatedWork W2105306803 @default.
- W2106528766 hasRelatedWork W2143030831 @default.
- W2106528766 hasRelatedWork W2212932823 @default.
- W2106528766 hasRelatedWork W2389272346 @default.
- W2106528766 hasRelatedWork W2571312368 @default.
- W2106528766 hasRelatedWork W3005743681 @default.
- W2106528766 hasRelatedWork W3185617955 @default.
- W2106528766 hasRelatedWork W4224233406 @default.
- W2106528766 hasVolume "117" @default.
- W2106528766 isParatext "false" @default.
- W2106528766 isRetracted "false" @default.
- W2106528766 magId "2106528766" @default.
- W2106528766 workType "article" @default.