Application of polyaniline for potentiometric recognition of salicylate and its analogues

Shishkanova, Tatiana V.; Videnská, K.; Antonova, Svetlana; Kronďák, Martin; Fitl, Přemysl; Kopecký, Dušan; Vrňata, Martin; Král, Vladimı́r

doi:10.1016/j.electacta.2013.10.214

Cited by 10 publications

(6 citation statements)

References 28 publications

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“…Various methods have been proposed for the determination of salicylic acid and its derivatives in biological liquids and pharmaceutical preparations: chromatography [ 4 , 5 ], spectroscopic [ 6 – 9 ], electrochemical [ 10 – 15 ]. Many spectrophotometric and electrochemical methods of salicylate determination are based on its ability of forming complexes with metals: colored complex of salicylate with iron (III) is used in the classical method of salicylate determination (Trinder test) in biological samples [ 6 ]; complexing reaction with transition metal ions is employed in ion-selective electrodes construction [ 12 – 14 ].…”

Section: Introductionmentioning

confidence: 99%

Silica-titania xerogel for solid phase spectrophotometric determination of salicylate and its derivatives in biological liquids and pharmaceuticals

Morosanova

Моросанова

2015

Chemistry Central Journal

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BackgroundSalicylic acid and its derivatives are widely used drugs with potential toxicity. The main areas of salicylate derivatives determination are biological liquids and pharmaceuticals analysis.ResultsSilica-titania xerogel has been used for solid phase spectrophotometric determination of various salicylate derivatives (salicylate, salicylamide, methylsalicylate). The reaction conditions influence on the interaction of salicylate derivatives with silica-titania xerogels has been investigated; the characteristics of titanium(IV)-salicylate derivatives complexes in solid phase have been described. The simple solid phase spectrophotometric procedures are based on the formation of xerogel incorporated titanium(IV) colored complexes with salicylate derivatives. A linear response has been observed in the following concentration ranges 0.1–5, 0.5–10 and 0.05-4.7 mM for salicylate, salicylamide, and methylsalicylate, respectively. The proposed procedures have been applied to the analysis of human urine, synthetic serum, and pharmaceuticals.ConclusionsThe simple solid phase spectrophotometric procedures of salicylate derivatives determination based on the new sensor materials have been proposed for biological liquids and pharmaceuticals analysis.Graphical abstractComplexation of titanium (IV), incorporated in silica-titania xerogels (Si-Ti), with salicylate derivatives (L) resulting in yellow-colored xerogels (Si-Ti/Ln) has been proposed for salicylate derivatives determination in biological liquids and pharmaceuticals

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Section: Introductionmentioning

confidence: 99%

Silica-titania xerogel for solid phase spectrophotometric determination of salicylate and its derivatives in biological liquids and pharmaceuticals

Morosanova

Моросанова

2015

Chemistry Central Journal

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“…To the best of our knowledge, it is the first time to introduce a chemically modified carbon paste based sensor for salicylate determination and it proves to have good response characteristics among all the studied sensors. Also, the comparison of the CP based sensor ( B ) with the previously reported salicylate sensors 9–12, 63–65 showed superior characteristics in terms of response time, linear range and detection limit, with the exception of 11, 12 which have wider linear range (Table 4).…”

Section: Comparison Of the Proposed Sensors With Some Of The Reportmentioning

confidence: 84%

Total Synthesis of the Spirocyclic Oxindole Alkaloids Corynoxine, Corynoxine B, Corynoxeine, and Rhynchophylline

et al. 2013

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Racemic total syntheses of four spirocyclic oxindole alkaloids are reported. The general starting material was an N‐2‐butenylated 2‐hydroxytryptamine, which underwent a base‐mediated Mannich spirocyclisation with a functionalised aldehyde to generate the C‐ring. The second key step was a Pd‐catalysed cyclisation of an α‐keto ester enolate (in the original aldehyde) onto an allylic carbonate (in the N‐substituent) to form the D‐ring. The stereoselectivities of the key steps were moderate, but the isomers were readily purified, so that the natural products could be conveniently prepared, three of them for the first time.

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“…This is because the resistance of the modified electrode surface is affected by the release of iodide. When the specific interaction between the PMS and anionic analytes occurs, the iodide diffuses and causes a decrease in resistance values [ 28 ].…”

Section: Resultsmentioning

confidence: 99%

Pentamethinium Salts Nanocomposite for Electrochemical Detection of Heparin

et al. 2021

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This study presents a simple route to heparin detection and develops a voltammetric approach using supramolecular principles and nanomaterials. Nanocomposites, including gold nanoparticles (AuNPs) and γ-substituted pentamethinium salts (PMS) deposited on a glass carbon (GC) electrode surface (GC/AuNPs/PMS) and covered by a plasticized poly(vinyl chloride) (PVC) membrane, are proposed for heparin detection. The conductivity of the nonconducting PVC-plasticized membrane is guaranteed by AuNPs, and the selectivity is provided by the interaction between γ-substituted PMS and anionic analytes. In order to extend the linear range, it is necessary to apply a solvent compatible with PVC-plasticized membrane, namely tetrahydrofuran. The proposed voltammetric sensor showed a concentration dependence from 1.72 up to 45.02 IU mL−1 heparin and was used for heparin detection in saline and biological samples with recovery of 95.1–100.9%.

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Application of polyaniline for potentiometric recognition of salicylate and its analogues

Cited by 10 publications

References 28 publications

Silica-titania xerogel for solid phase spectrophotometric determination of salicylate and its derivatives in biological liquids and pharmaceuticals

Silica-titania xerogel for solid phase spectrophotometric determination of salicylate and its derivatives in biological liquids and pharmaceuticals

Total Synthesis of the Spirocyclic Oxindole Alkaloids Corynoxine, Corynoxine B, Corynoxeine, and Rhynchophylline

Pentamethinium Salts Nanocomposite for Electrochemical Detection of Heparin

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