Electrochemical behavior and determination of quinolinium and isoquinolinium oximes
Само за регистроване кориснике
1991
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
The electrochemical behavior of 1‐(2‐phenyl‐2‐hydroxyiminoethyl)‐1‐quinolinium chloride (F‐1) and 1‐(2‐phenyl‐2‐hydroxyiminoethyl)‐1‐isoquinolinium chloride (F‐2) was investigated using dc and differential pulse polarography (DPP) and cyclic voltammetry. Well‐defined, diffusion‐controlled, cathodic waves were observed for F‐1 only in strong acidic solution (pH 1.25 HCl) and for F‐2 in the H range 1.25–5.33 (HCl and Britton–Robinson buffer). The overall reduction of the azomethine group to a primary amine, a process that involves the uptake of four electrons, is irreversible. For both oximes a mechanism of reduction has been proposed. The rapid and accurate determination of these quinolinium and isoquinolinium oximes is possible by dc polarography and by DPP. Limits of detection are 5 × 10−7 M for both oximes using DPP.
Извор:
Electroanalysis, 1991, 3, 2, 139-144Институција/група
PharmacyTY - JOUR AU - Karljiković-Rajić, Katarina AU - Jovanović, M AU - Korićanac, Zagorka AU - Stanković, B AU - Minić, D PY - 1991 UR - https://farfar.pharmacy.bg.ac.rs/handle/123456789/82 AB - The electrochemical behavior of 1‐(2‐phenyl‐2‐hydroxyiminoethyl)‐1‐quinolinium chloride (F‐1) and 1‐(2‐phenyl‐2‐hydroxyiminoethyl)‐1‐isoquinolinium chloride (F‐2) was investigated using dc and differential pulse polarography (DPP) and cyclic voltammetry. Well‐defined, diffusion‐controlled, cathodic waves were observed for F‐1 only in strong acidic solution (pH 1.25 HCl) and for F‐2 in the H range 1.25–5.33 (HCl and Britton–Robinson buffer). The overall reduction of the azomethine group to a primary amine, a process that involves the uptake of four electrons, is irreversible. For both oximes a mechanism of reduction has been proposed. The rapid and accurate determination of these quinolinium and isoquinolinium oximes is possible by dc polarography and by DPP. Limits of detection are 5 × 10−7 M for both oximes using DPP. T2 - Electroanalysis T1 - Electrochemical behavior and determination of quinolinium and isoquinolinium oximes VL - 3 IS - 2 SP - 139 EP - 144 DO - 10.1002/elan.1140030211 ER -
@article{ author = "Karljiković-Rajić, Katarina and Jovanović, M and Korićanac, Zagorka and Stanković, B and Minić, D", year = "1991", abstract = "The electrochemical behavior of 1‐(2‐phenyl‐2‐hydroxyiminoethyl)‐1‐quinolinium chloride (F‐1) and 1‐(2‐phenyl‐2‐hydroxyiminoethyl)‐1‐isoquinolinium chloride (F‐2) was investigated using dc and differential pulse polarography (DPP) and cyclic voltammetry. Well‐defined, diffusion‐controlled, cathodic waves were observed for F‐1 only in strong acidic solution (pH 1.25 HCl) and for F‐2 in the H range 1.25–5.33 (HCl and Britton–Robinson buffer). The overall reduction of the azomethine group to a primary amine, a process that involves the uptake of four electrons, is irreversible. For both oximes a mechanism of reduction has been proposed. The rapid and accurate determination of these quinolinium and isoquinolinium oximes is possible by dc polarography and by DPP. Limits of detection are 5 × 10−7 M for both oximes using DPP.", journal = "Electroanalysis", title = "Electrochemical behavior and determination of quinolinium and isoquinolinium oximes", volume = "3", number = "2", pages = "139-144", doi = "10.1002/elan.1140030211" }
Karljiković-Rajić, K., Jovanović, M., Korićanac, Z., Stanković, B.,& Minić, D.. (1991). Electrochemical behavior and determination of quinolinium and isoquinolinium oximes. in Electroanalysis, 3(2), 139-144. https://doi.org/10.1002/elan.1140030211
Karljiković-Rajić K, Jovanović M, Korićanac Z, Stanković B, Minić D. Electrochemical behavior and determination of quinolinium and isoquinolinium oximes. in Electroanalysis. 1991;3(2):139-144. doi:10.1002/elan.1140030211 .
Karljiković-Rajić, Katarina, Jovanović, M, Korićanac, Zagorka, Stanković, B, Minić, D, "Electrochemical behavior and determination of quinolinium and isoquinolinium oximes" in Electroanalysis, 3, no. 2 (1991):139-144, https://doi.org/10.1002/elan.1140030211 . .