Surface morphology changes of polymer membrane and carbon paste sertraline sensors

Khater, M. M.; Hassib, H.B.; Issa, Y. M.; Mohammed, S.H.

doi:10.1016/j.talanta.2014.11.018

Cited by 11 publications

(14 citation statements)

References 22 publications

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“…These values were compared with values reported by other research groups for electrochemical determination of sertraline (Table I). 7,[17][18][19] With respect to Table I, the linear dynamic range (LDR) and the detection limit of (LOD) present work are comparable to values acquired by other research groups.…”

Section: The Working Curve and Detection Limitsupporting

confidence: 87%

“…[13][14][15] However, because of the poor electrochemical behaviour of the most of electro--active analytes, low reducibility, sensitivity and high over potential at electrodes, the performance of the electrodes in electrochemical methods can be improved if they were modified by various nanomaterials and methodologies. [16][17][18][19][20][21][22][23][24][25][26][27] Nanostructured materials are one of the most promising supporting materials for surface modification of electrodes, due to their unique properties, such as good biocompatibility, high surface-to-volume ratio, substantial mechanical power and electrical properties. Lanthanum (La) is one of the most important lanthanide elements.…”

Section: Introductionmentioning

confidence: 99%

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La2O3/Co3O4 nanocomposite modified screen printed electrode for voltammetric determination of sertraline

et al. 2020

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La 2 O 3 /Co 3 O 4 nanocomposite was synthesized and then used for the modification of screen-printed electrode (SPE) prior to the electrochemical determination of sertraline. A significant increment in peak current response was observed and peak potential also shifted towards less positive potentials showing the facilitated oxidation procedure at surface of modified SPE (La 2 O 3 / /Co 3 O 4 /SPE). The quantitative determination of sertraline was carried out by using different pulse voltammetry and the anodic peak current was found to increase with increasing sertraline concentration in the linear range of 5.0-400.0 µM with limit of detection as 1.0 μM. The prepared La 2 O 3 /Co 3 O 4 /SPE has been successfully used for detecting sertraline in sertraline tablet and urine samples with excellent recoveries.

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Section: The Working Curve and Detection Limitsupporting

confidence: 87%

Section: Introductionmentioning

confidence: 99%

La2O3/Co3O4 nanocomposite modified screen printed electrode for voltammetric determination of sertraline

et al. 2020

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“…To je dijelom moguće spriječiti kratkoročnim skladištenjem na hladnom i mračnom mjestu. 2 Najčešće ispitivana veziva u posljednjih desetak godina u razvoju CPE jesu: dibutilftalat (DBP), 4,6,[8][9][10][11][12][13][14][15][16][17][18][19][20] bis(2-etilheksil)ftalat (DOP), 6,9,21,22,[10][11][12][13][14]16,18,20 parafinsko ulje (PO), 4,5,15,[23][24][25][26] tris(2-etilheksil)fosfat (TEPh), [16][17][18] 2-nitrofenil-oktil-eter (NPOE) 4,6,9,12,14,15,27 te bis(2-etilheksil)adipat (DEHA) 10,12,13,15,16 šća p...…”

Section: Uvodunclassified

“…Testiranja utjecaja IAC-a provođena su u rasponu od 0 do 5 %, 4,6,9,[16][17][18] od 0 do 10 %, 11,12,15,20 O vrsti i dodanoj količini soli (ionskih aditiva), kao često upotrebljavanim modifikatorima CPE, također znatno ovisi osjetljivost senzora. 4,12,13,16,17,22,46 Lipofilni ionski aditivi nužni su za stabilizaciju nabijenih kompleksa, osiguravanje selektivnosti i neutralnosti membrana budući da poboljšavaju vodljivost paste te omogućavaju kvalitetniju izmjenu iona. Dakle, kad u sastavu senzora nema ionskih aditiva, rezultirajuća krivulja umjeravanja (slika 2c) često pokazuje lošiji nagib i uže linearno dinamičko područje.…”

Section: Uvodunclassified

Renesansa elektroda s ugljikovom pastom; njihove modifikacije i primjene u potenciometrijskim određivanjima farmaceutika

Radić

Bralić²,

Kolar³

2023

Kemija U Industriji

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The development of carbon paste electrodes in the 1970s generated considerable interest in the scientific community, because they offered several advantages over conventional membrane electrodes. At the beginning of the new millennium, the use of carbon nanomaterials as a new trend in their development gave additional impetus. After CPEs were successfully developed for potentiometric determination of more than 70 chemical elements, these electrodes gained additional interest for pharmaceutical and medical applications. This paper reviews the scientific literature of the last decade related to the development of CPEs for the quantitative determination of active pharmaceutical ingredients and their application in real samples.

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“…On the other hand, the vast majority of these techniques include tedious, sophisticated instruments, complicated procedures and require highly qualified personnel. Potentiometric sensors based on PVC membrane are simple, rapid, sensitive and economical and are applied as analytical tools in different areas (15)(16)(17).…”

mentioning

confidence: 99%

Ionophore-based potentiometric PVC membrane sensors for determination of phenobarbitone in pharmaceutical formulations

et al. 2016

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The fabrication and development of two polyvinyl chloride (PVC) membrane sensors for assaying phenobarbitone sodium are described. Sensors 1 and 2 were fabricated utilizing β- or γ-cyclodextrin as ionophore in the presence of tridodecylmethylammonium chloride as a membrane additive, and PVC and dioctyl phthalate as plasticizer. The analytical parameters of both sensors were evaluated according to the IUPAC guidelines. The proposed sensors showed rapid, stable anionic response (-59.1 and -62.0 mV per decade) over a relatively wide phenobarbitone concentration range (5.0 × 10-6-1 × 10-2 and 8 × 10-6-1 × 10-2 mol L-1) in the pH range of 9-11. The limit of detection was 3.5 × 10-6 and 7.0 × 10-6 mol L-1 for sensors 1 and 2, respectively. The fabricated sensors showed high selectivity for phenobarbitone over the investigated foreign species. An average recovery of 2.54 μg mL-1 phenobarbitone sodium was 97.4 and 101.1 %, while the mean relative standard deviation was 3.0 and 2.1 %, for sensors 1 and 2, respectively. The results acquired for determination of phenobarbitone in its dosage forms utilizing the proposed sensors are in good agreement with those obtained by the British Pharmacopoeial method.

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Surface morphology changes of polymer membrane and carbon paste sertraline sensors

Cited by 11 publications

References 22 publications

La2O3/Co3O4 nanocomposite modified screen printed electrode for voltammetric determination of sertraline

La2O3/Co3O4 nanocomposite modified screen printed electrode for voltammetric determination of sertraline

Renesansa elektroda s ugljikovom pastom; njihove modifikacije i primjene u potenciometrijskim određivanjima farmaceutika

Ionophore-based potentiometric PVC membrane sensors for determination of phenobarbitone in pharmaceutical formulations

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