Flow Injection Amperometric System Coupled with a Well-Plate for Fast Screening of Total Antioxidant Capacity

Klayprasert, Puttaporn; Jakmunee, Jaroon

doi:10.1080/00032719.2017.1392547

Cited by 6 publications

(3 citation statements)

References 36 publications

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“…As mentioned earlier, different commercially available tea samples from different parts of India were used as real samples for the detection of functional groups of tea polyphenols using FIA‐DECD and the recovery was found to be ∼100 %. In 2018, Klayprasert et al., reported the fast screening of the antioxidant capacity, by using flow injection analysis coupled with 96‐well‐plate [56]. This analysis was based on the reaction between Cr 2 O 7 2− ion and test antioxidant capacity CHROMAC assay.…”

Section: Classification Of Different Techniques For the Detection Of mentioning

confidence: 99%

Electrochemical Detections of Tea Polyphenols: A Review

Saikrithika

2020

Electroanalysis

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Tea, contains an abundant amount of polyphenols, has many health benefits, and acts as a remedy for many diseases, including cardiovascular and neurological disorders. In this article, we have reviewed the reported electrochemical techniques for the detection of tea polyphenols under the sub‐headings, separation coupled with electrochemical detection, direct electrochemical detection, bioelectrochemical sensing, simultaneous electrochemical detection and flow injection analysis.

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Section: Classification Of Different Techniques For the Detection Of mentioning

confidence: 99%

Electrochemical Detections of Tea Polyphenols: A Review

Saikrithika

2020

Electroanalysis

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“…More importantly, it is inevitable that the antioxidant compositions would be exposed to air during the extraction processes. Electroanalytical methods were desirable for detecting the redox potential (status); extracted samples or juices, however, have been used in reported electrochemical methods. , Even if a microelectrode was inserted into fruits or vegetables, it cannot measure pH and redox potential simultaneously, because redox potential is pH dependent.…”

Section: Introductionmentioning

confidence: 99%

Detection of Redox Status and pH of Fruits and Vegetables Using a Multiplexed SERS-Active Microneedle

Pan

Sun

et al. 2021

ACS Food Sci. Technol.

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To detect the real values of their redox status and pH, a multiplexed SERS-active microneedle, integrated with redox-sensitive and pH-sensitive surface-enhanced Raman scattering (SERS) probes, was inserted into fruits and vegetables with minimal invasion, and then, they were pulled out to obtain SERS signals to indicate their pH and redox status. Ten kinds of fruits and vegetables were detected via the SERS-active microneedles, and they were also used to detect the peels, the fleshes of banana, and different parts and depth of strawberry, respectively. The multiplexed SERS-active microneedle would become a versatile platform to fully evaluate fruits and vegetables in the daily life and food processing and managements.

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“…To build efficient devices, it is necessary to consider how physical or geometrical parameters, such as fluid velocity, channel geometry, electrode shape and length, affect the current flowing at the electrode, the equilibration time, and the amount of analyte that is collected at the electrode [ 20 , 24 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 ]. A lot of effort has been made to model mass transport phenomena for microelectrodic systems, both for single-electrode configuration, or in presence of microelectrode arrays (possibly operating in different conditions, as in “digit” configuration) [ 24 , 40 , 41 , 42 , 43 , 44 , 45 , 46 ]. Theoretical models have been proposed along with numerical computations, mainly based on the finite elements analysis (FEA) [ 47 , 48 , 49 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Electrode Shape and Flow Conditions on the Electrochemical Detection with Band Microelectrodes

Khatib

Bellini

Pogni

et al. 2018

Sensors

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In this work, we report the analysis of the electrochemical detection of electroactive species with band microelectrodes that operate under controlled convection. The study focuses on the determination of the collection efficiency of the analyte as a function of inlet flow velocity and microband geometry (inlaid, bumped and recessed), also providing a straightforward method for the theoretical determination of the lower detection limit. The analysis has been carried out by simulating the dimensionless mass transport with the finite element method, delivering the stationary limiting current density. Simulations have been performed on systems consisting of single and double band electrodes to investigate the trail effect on the electrochemical detection. We show that the obtained dimensionless results can be easily turned into dimensional data, providing a tool for the design of devices. The proposed method is general and can easily be extended to systems with different geometry.

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Flow Injection Amperometric System Coupled with a Well-Plate for Fast Screening of Total Antioxidant Capacity

Cited by 6 publications

References 36 publications

Electrochemical Detections of Tea Polyphenols: A Review

Electrochemical Detections of Tea Polyphenols: A Review

Detection of Redox Status and pH of Fruits and Vegetables Using a Multiplexed SERS-Active Microneedle

Effect of Electrode Shape and Flow Conditions on the Electrochemical Detection with Band Microelectrodes

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