Chemiluminescent method for determination of hydrogen peroxide in the ambient atmosphere

Kok, Gregory L.; Holler, Tod P.; López, Miguel Ángel Martín; Nachtrieb, Howard A.; Yuan, Mark

doi:10.1021/es60145a010

Cited by 123 publications

(44 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the single enzyme electrode and the inner H 2 O 2 -sensing layer of the bienzyme electrode, HRP was immobilized by entrapment in poly(m-AAMFc) film deposited on a polished glassy carbon electrode (GCE) by electrochemical polymerization of (I) from a deaerated saturated solution of (I) in water containing 0.05 M NaClO 4 and HRP by cycling the electrode potential at 50 mV/s between 0 and 0.9 V (vs Ag/AgCl). After rinsing the electrode with buffer to remove entrapped monomer, the electrode was used either for optimization of H 2 O 2 detection or for the construction of bienzyme electrode.…”

Section: Methodsmentioning

confidence: 99%

Ferrocene-Conjugatedm-Phenylenediamine Conducting Polymer-Incorporated Peroxidase Biosensors

Mulchandani

Pan

1999

Analytical Biochemistry

View full text Add to dashboard Cite

Section: Methodsmentioning

confidence: 99%

Ferrocene-Conjugatedm-Phenylenediamine Conducting Polymer-Incorporated Peroxidase Biosensors

Mulchandani

Pan

1999

Analytical Biochemistry

View full text Add to dashboard Cite

“…After passage through the drier, the analyte air stream is drawn through a 10-turn borosilicate glass gas/liquid exchange coil similar to that used by Kok et al (1978).…”

Section: Gas/liquid Exchange Coilmentioning

confidence: 99%

Low-level atmospheric sulfur dioxide measurement using HPLC/fluorescence detection

1993

View full text Add to dashboard Cite

Abstract. An automated technique for measuring SO2 in ambient air has been developed. Air is passed through a gas/liquid exchange coil with an aqueous absorber solution containing 10 ~tM formaldehyde and 0.84 mM Na:EDTA. The SOz rapidly equilibrates with bisulfite (HSO~) and sulfite (SO~-) in the aqueous solution. The aqueous S(IV) is subsequently reacted with o-phthalaldehyde in the presence of excess ethanolamine to form a fluorescent isoindole in a continuous flow stream. This derivative is then separated using reversed phase HPLC and detected via fluorescence with excitation and emission wavelengths at 330 and 380 nm, respectively. The lower limit of detection is 7 pptv (S/N = 3), with a measurement period of eight minutes per sample. The instrument response is linear over several orders of magnitude.

show abstract

“…Many analytical methods for monitoring hydrogen peroxide in environmental samples have been developed, such as photometry, 1 chemiluminescence, 2 fluorimetry, 3 voltammetry 4 and amperometry. 5 Another importance of hydrogen peroxide concerns biochemical systems as it is usually a by-product in oxidase reactions.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Electrochemical Properties of Manganese Hexacyanoferrate Modified Glassy Carbon Electrode

Liu¹,

Yan²,

Shen³

2005

Chin. J. Chem.

View full text Add to dashboard Cite

A thin film of manganese hexacyanoferrate (MnHCF) was electrochemically formed on a glassy carbon (GC) electrode to prepare a chemically modified electrode (CME). The mechanism of film formation of MnHCF and its growth process were investigated in detail by cyclic voltammetry. The results show that the stoichiometric composition of MnHCF is Mn III Fe III (CN) 6 , an analogue of prussian yellow. There exist three clear-cut stages in the whole modification process and the last stage is indispensable to the fabrication of homogenized, stable MnHCF film and must last for an appropriate time. The surface morphology of MnHCF/GC electrode was characterized by scanning electron microscopy (SEM), which further verified the effective deposition of MnHCF film on GC. The kinetic constants of MnHCF/GC electrode process were also evaluated. The resulting MnHCF film modified electrode presented good stability and high electrocatalytic activity toward the oxidation of H 2 O 2 , indicating that MnHCF film possesses function of catalase and can be expected for analytical purposes.

show abstract

Chemiluminescent method for determination of hydrogen peroxide in the ambient atmosphere

Cited by 123 publications

References 9 publications

Ferrocene-Conjugatedm-Phenylenediamine Conducting Polymer-Incorporated Peroxidase Biosensors

Ferrocene-Conjugatedm-Phenylenediamine Conducting Polymer-Incorporated Peroxidase Biosensors

Low-level atmospheric sulfur dioxide measurement using HPLC/fluorescence detection

Preparation and Electrochemical Properties of Manganese Hexacyanoferrate Modified Glassy Carbon Electrode

Contact Info

Product

Resources

About