Simultaneous Detection of Paracetamol, Ascorbic Acid, and Caffeine Using a Bismuth–Silver Nanosensor

Horst, Charlton van der; Silwana, Bongiwe; Gil, Eric de Souza; Iwuoha, Emmanuel I.; Somerset, Vernon

doi:10.1002/elan.202060389

Cited by 6 publications

(2 citation statements)

References 44 publications

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“…Horst et al [ 62 ] used nanoparticles of bismuth and silver to prepare modified GCE (BiAgNPs/GCE) for the individual and simultaneous determination of caffeine, ascorbic acid, and paracetamol in phosphate buffer solution. The sensing performance of BiAgNPs/GCE was also validated in real pharmaceutical formulations for target analytes using differential pulse voltammetry.…”

Section: Discussionmentioning

confidence: 99%

“…Geto and Brett [ 55 ], Guan et al [ 68 ], Jose et al [ 57 ], and Monteiro et al [ 93 ] noticed a linear relationship between the peak current (I p ) and the square root of the scan rate (v 1/2 ), indicating a diffusion-controlled process. On the other hand, Horst et al [ 62 ] and Varsha et al [ 21 ] observed a linear relationship between the peak current (I p ) and the scan rate (v), suggesting that the process is adsorption-controlled. In the paper by Kumar et al [ 58 ], the oxidation mechanism of caffeine on Co 3 O 4 NS-modified GCE in an acetate buffer solution was described as a process controlled by diffusion and adsorption, while Santhosh et al [ 76 ] indicated that it is only an electrolytic redox process and a quasi-reversible electron transfer between caffeine and the CMCPE electrode’s surface.…”

Section: Discussionmentioning

confidence: 99%

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Recent Advances in Electrochemical Sensors for Caffeine Determination

Tasić

Mihajlović

Simonović

et al. 2022

Sensors

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The determination of target analytes at very low concentrations is important for various fields such as the pharmaceutical industry, environmental protection, and the food industry. Caffeine, as a natural alkaloid, is widely consumed in various beverages and medicines. Apart from the beneficial effects for which it is used, caffeine also has negative effects, and for these reasons it is very important to determine its concentration in different mediums. Among numerous analytical techniques, electrochemical methods with appropriate sensors occupy a special place since they are efficient, fast, and entail relatively easy preparation and measurements. Electrochemical sensors based on carbon materials are very common in this type of research because they are cost-effective, have a wide potential range, and possess relative electrochemical inertness and electrocatalytic activity in various redox reactions. Additionally, these types of sensors could be modified to improve their analytical performances. The data available in the literature on the development and modification of electrochemical sensors for the determination of caffeine are summarized and discussed in this review.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Recent Advances in Electrochemical Sensors for Caffeine Determination

Tasić

Mihajlović

Simonović

et al. 2022

Sensors

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Electrochemical determination of acetaminophen at a carbon electrode modified in the presence of β-cyclodextrin: role of the activated glassy carbon and the electropolymerised β-cyclodextrin

Healy

Rizzuto

Rose

et al. 2021

J Solid State Electrochem

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Acetaminophen is a well-known drug commonly used to provide pain relief, but it can also lead to acute liver failure at high concentrations. Therefore, there is considerable interest in monitoring its concentrations. Sensitive and selective acetaminophen electrochemical sensors were designed by cycling a glassy carbon electrode (GCE) to high potentials in the presence of β-CD in a phosphate electrolyte, or by simply activating the GCE electrode in the phosphate solution. Using cyclic voltammetry, adsorption-like voltammograms were recorded. The acetaminophen oxidation product, N-acetyl benzoquinone imine, was protected from hydrolysis, and this was attributed to the adsorption of acetaminophen at the modified GCE. The rate constants for the oxidation of acetaminophen were estimated as 4.3 × 10–3 cm2 s–1 and 3.4 × 10–3 cm2 s–1 for the β-CD-modified and -activated electrodes, respectively. Using differential pulse voltammetry, the limit of detection was calculated as 9.7 × 10–8 M with a linear concentration range extending from 0.1 to 80 μM. Furthermore, good selectivity was achieved in the presence of caffeine, ascorbic acid and aspirin, enabling the determination of acetaminophen in a commercial tablet. Similar electrochemical data were obtained for both the β-CD-modified and activated GCE surfaces, suggesting that the enhanced detection of acetaminophen is connected mainly to the activation and oxidation of the GCE. Using SEM, EDX and FTIR, no evidence was obtained to indicate that the β-CD was electropolymerised at the GCE.

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Sensitive and selective electrochemical detection of acetaminophen based on GO-MnO2-modified electrode

Anbumannan,

Suresh

2024

Carbon Lett.

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Simultaneous Detection of Paracetamol, Ascorbic Acid, and Caffeine Using a Bismuth–Silver Nanosensor

Cited by 6 publications

References 44 publications

Recent Advances in Electrochemical Sensors for Caffeine Determination

Recent Advances in Electrochemical Sensors for Caffeine Determination

Electrochemical determination of acetaminophen at a carbon electrode modified in the presence of β-cyclodextrin: role of the activated glassy carbon and the electropolymerised β-cyclodextrin

Sensitive and selective electrochemical detection of acetaminophen based on GO-MnO2-modified electrode

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