A non-enzymatic sensor based on the redox of ferrocene carboxylic acid on ionic liquid film-modified screen-printed graphite electrode for the analysis of hydrogen peroxide residues in milk

Prosper Kanyong, Sean Rawlinson, James Davis

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Globally, the use of H2O2 for the preservation of raw milk has a long established history. However, in the EU, US and most parts of the world, where access to refrigeration facilities is widely available, the adulteration of milk with H2O2 is generally not permitted. An inhouse hand-printed carbon electrode consisting of graphite printing ink modified with the room temperature ionic liquid (RTIL), 1-ethyl-3-methylimidazolium tetrafluoroborate ([EMIM][BF4]), ferrocene carboxylic acid (Fca) and cellulose acetate (CA) for the electrochemical sensing of hydrogen peroxide (H2O2) in commercially packaged aseptic milk is described. The developed electrode successfully enabled sensitive determination of H2O2, free from interference from some known electroactive species such as ascorbic acid (AA), dopamine (DA), glucose and uric acid (UA). The linear range for the determination of H2O2 was 1.0 μM - 1.2 mM with a limit of detection of 0.35 μM and a sensitivity of 10.6 nAμA1μM-1cm-2. When used for the analysis of H2O2 residues in milk samples, the resulting precision (n = 6) and recovery were 0.53 % and 97.8 %, respectively.
LanguageEnglish
Pages147-151
JournalJournal of Electroanalytical Chemistry
Volume766
Early online date6 Feb 2016
DOIs
Publication statusPublished - 1 Apr 2016

Fingerprint

Ionic Liquids
Graphite electrodes
Liquid films
Hydrogen Peroxide
Sensors
Electrodes
Graphite
Refrigeration
Uric Acid
Ink
Ascorbic Acid
Dopamine
Carbon
Glucose
Recovery
Milk
Oxidation-Reduction
ferrocenecarboxylic acid
Temperature

Keywords

  • Ionic liquid
  • hydrogen peroxide
  • screen-printed electrode
  • ferrocene
  • milk
  • cellulose acetate

Cite this

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title = "A non-enzymatic sensor based on the redox of ferrocene carboxylic acid on ionic liquid film-modified screen-printed graphite electrode for the analysis of hydrogen peroxide residues in milk",
abstract = "Globally, the use of H2O2 for the preservation of raw milk has a long established history. However, in the EU, US and most parts of the world, where access to refrigeration facilities is widely available, the adulteration of milk with H2O2 is generally not permitted. An inhouse hand-printed carbon electrode consisting of graphite printing ink modified with the room temperature ionic liquid (RTIL), 1-ethyl-3-methylimidazolium tetrafluoroborate ([EMIM][BF4]), ferrocene carboxylic acid (Fca) and cellulose acetate (CA) for the electrochemical sensing of hydrogen peroxide (H2O2) in commercially packaged aseptic milk is described. The developed electrode successfully enabled sensitive determination of H2O2, free from interference from some known electroactive species such as ascorbic acid (AA), dopamine (DA), glucose and uric acid (UA). The linear range for the determination of H2O2 was 1.0 μM - 1.2 mM with a limit of detection of 0.35 μM and a sensitivity of 10.6 nAμA1μM-1cm-2. When used for the analysis of H2O2 residues in milk samples, the resulting precision (n = 6) and recovery were 0.53 {\%} and 97.8 {\%}, respectively.",
keywords = "Ionic liquid, hydrogen peroxide, screen-printed electrode, ferrocene, milk, cellulose acetate",
author = "Prosper Kanyong and Sean Rawlinson and James Davis",
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T1 - A non-enzymatic sensor based on the redox of ferrocene carboxylic acid on ionic liquid film-modified screen-printed graphite electrode for the analysis of hydrogen peroxide residues in milk

AU - Kanyong, Prosper

AU - Rawlinson, Sean

AU - Davis, James

PY - 2016/4/1

Y1 - 2016/4/1

N2 - Globally, the use of H2O2 for the preservation of raw milk has a long established history. However, in the EU, US and most parts of the world, where access to refrigeration facilities is widely available, the adulteration of milk with H2O2 is generally not permitted. An inhouse hand-printed carbon electrode consisting of graphite printing ink modified with the room temperature ionic liquid (RTIL), 1-ethyl-3-methylimidazolium tetrafluoroborate ([EMIM][BF4]), ferrocene carboxylic acid (Fca) and cellulose acetate (CA) for the electrochemical sensing of hydrogen peroxide (H2O2) in commercially packaged aseptic milk is described. The developed electrode successfully enabled sensitive determination of H2O2, free from interference from some known electroactive species such as ascorbic acid (AA), dopamine (DA), glucose and uric acid (UA). The linear range for the determination of H2O2 was 1.0 μM - 1.2 mM with a limit of detection of 0.35 μM and a sensitivity of 10.6 nAμA1μM-1cm-2. When used for the analysis of H2O2 residues in milk samples, the resulting precision (n = 6) and recovery were 0.53 % and 97.8 %, respectively.

AB - Globally, the use of H2O2 for the preservation of raw milk has a long established history. However, in the EU, US and most parts of the world, where access to refrigeration facilities is widely available, the adulteration of milk with H2O2 is generally not permitted. An inhouse hand-printed carbon electrode consisting of graphite printing ink modified with the room temperature ionic liquid (RTIL), 1-ethyl-3-methylimidazolium tetrafluoroborate ([EMIM][BF4]), ferrocene carboxylic acid (Fca) and cellulose acetate (CA) for the electrochemical sensing of hydrogen peroxide (H2O2) in commercially packaged aseptic milk is described. The developed electrode successfully enabled sensitive determination of H2O2, free from interference from some known electroactive species such as ascorbic acid (AA), dopamine (DA), glucose and uric acid (UA). The linear range for the determination of H2O2 was 1.0 μM - 1.2 mM with a limit of detection of 0.35 μM and a sensitivity of 10.6 nAμA1μM-1cm-2. When used for the analysis of H2O2 residues in milk samples, the resulting precision (n = 6) and recovery were 0.53 % and 97.8 %, respectively.

KW - Ionic liquid

KW - hydrogen peroxide

KW - screen-printed electrode

KW - ferrocene

KW - milk

KW - cellulose acetate

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DO - 10.1016/j.jelechem.2016.02.006

M3 - Article

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