Polyeugenol-Modified Platinum Electrode for Selective Detection of Dopamine in the Presence of Ascorbic Acid

1999 ◽  
Vol 71 (5) ◽  
pp. 1055-1061 ◽  
Author(s):  
Aleksander Ciszewski ◽  
Grzegorz Milczarek
Keyword(s):  
Ascorbic Acid ◽  
Platinum Electrode ◽  
Selective Detection

scholarly journals Rapid selective detection of ascorbic acid using graphene-based microfluidic platform

2021 ◽  
pp. 1-1
Author(s):  
Goran M. Stojanovic ◽  
Tijana Kojic ◽  
Mitar Simic ◽  
Aleksandra Jovanovic-Galovic ◽  
Bojan Pavlovic ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Selective Detection ◽  
Microfluidic Platform

Silver nanoparticles decorated stain-etched mesoporous silicon for sensitive, selective detection of ascorbic acid

2019 ◽  
Vol 234 ◽  
pp. 96-100 ◽  
Author(s):  
Farid A. Harraz ◽  
M. Faisal ◽  
A.E. Al-Salami ◽  
Ahmed Mohamed El-Toni ◽  
A.A. Almadiy ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Ascorbic Acid ◽  
Selective Detection ◽  
Mesoporous Silicon

Survey of Benzene in Foods by Using Headspace Concentration Techniques and Capillary Gas Chromatography

1993 ◽  
Vol 76 (6) ◽  
pp. 1213-1219 ◽  
Author(s):  
Timothy P Mcneal ◽  
Patricia J Nyman ◽  
Gregory W Diachenko ◽  
Henry C Hollifield
Keyword(s):  
Gas Chromatography ◽  
Ascorbic Acid ◽  
Capillary Gas Chromatography ◽  
Selective Detection ◽  
Static Headspace ◽  
Food Preservatives ◽  
Standard Additions ◽  
Potassium Benzoate ◽  
Low Levels ◽  
Headspace Concentration

Abstract Recently, the combination of sodium or potassium benzoate with ascorbic acid was shown to produce low levels (ng/g) of benzene in fruit-flavored soft drinks. The presence of benzene also was reported in butter, eggs, meat, and certain fruits; levels of these findings ranged from 0.5 ng/g in butter to 500-1900 ng/g in eggs. Because benzoates are widely used as food preservatives, a limited survey of other foods containing added benzoate salts was conducted to investigate the potential for benzene formation. Selected foods that did not contain added benzoates but were previously reported to contain benzene were analyzed for comparison. More than 50 foods were analyzed by purge-andtrap or static headspace concentration and capillary gas chromatography. Benzene was quantitated by using the method of standard additions, and its identity was confirmed by mass selective detection. Results of this limited survey show that foods without added benzoates (including eggs) contained benzene at levels equal to or less than 2 ng/g. Slightly higher levels were present in some foods and beverages containing both ascorbic acid and sodium benzoate.

scholarly journals A nanocomposite of NiFe2O4–PANI as a duo active electrocatalyst toward the sensitive colorimetric and electrochemical sensing of ascorbic acid

2020 ◽  
Vol 2 (8) ◽  
pp. 3481-3493
Author(s):  
D. Navadeepthy ◽  
M. Thangapandian ◽  
C. Viswanathan ◽  
N. Ponpandian
Keyword(s):  
Ascorbic Acid ◽  
Nickel Ferrite ◽  
Electrochemical Methods ◽  
Electrochemical Sensing ◽  
Selective Detection ◽  
Peroxidase Mimic ◽  
Active Sensor

A non-enzymatic, duo-active sensor using nickel ferrite/PANI (NF–PANI) nanocomposite based on peroxidase mimic and electrochemical methods for sensitive and selective detection of ascorbic acid.

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