Determination of polynuclear aromatic hydrocarbons by anodic differential pulse voltammetry at the glassy carbon electrode in sulfolane and acetonitrile as solvents

Coetzee, J. F.; Kazi, G. H.; Spurgeon, Josh

doi:10.1021/ac50008a030

Cited by 24 publications

(4 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The excellent sensitivity of differential pulse polarography has prompted a number of investigations of its applicability with solid electrodes which would permit the use of very positive potentials for which the dropping mercury electrode fails due to oxidation of mercury (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11). In previous work (3,4) it was shown that excellent results for the determination of various organic species could be achieved by using platinum electrodes and acetonitrile as solvent.…”

mentioning

confidence: 99%

Suppression of background current in differential pulse voltammetry with solid electrodes

Sokol¹,

Evans²

1981

Anal. Chem.

View full text Add to dashboard Cite

A modification of differential pulse voltammetry has been proposed and tested. In the modified version, currents are measured at two different times during each pulse, and their difference is computed and displayed. The resulting voltammogram has the same characteristics as those obtained In the normal manner except that the magnitude of the peak is somewhat smaller. More Importantly, background current of the type observed with platinum electrodes at positive potentials Is dramatically suppressed. The result Is an Improved signal-to-background ratio for samples undergoing oxidation at potentials more positive than about +1.5 V vs. SCE. The technique has been evaluated through the study of reversible (9,10-dlphenylanthracene) and irreversible (2,4,6-trl-ferf-butylphenol, m-anlsaldehyde, Isobutyraldehyde) oxidations at platinum In acetonitrile spanning potentials from +1.2 to +2.9 V vs. SCE. The modification resulted In about a 5-fold Increase In signal-to-background ratio for m-anlsaldehyde and isobutyraldehyde.

show abstract

mentioning

confidence: 99%

Suppression of background current in differential pulse voltammetry with solid electrodes

Sokol¹,

Evans²

1981

Anal. Chem.

View full text Add to dashboard Cite

show abstract

“…The radical cations of some PAHs, e.g., benzo(a)pyrene, are very stable (63), and the facile preparation of radical cations of reactive PAH having low oxidation and ionization potentials (64)(65)(66)(67) have been utilized for preparing 1-nitropyrene and 3-nitroperylene (68). So far, there is spectroscopic evidence that radical cations are involved in the nitration reactions of some anilines (69,70).…”

Section: Formation Of Nitroarenes By Electrophilic Reactionsmentioning

confidence: 99%

The fate of airborne polycyclic organic matter.

Nielsen¹,

Ramdahl²,

Bjørseth³

1983

Environ Health Perspect

View full text Add to dashboard Cite

Biological tests have shown that a significant part of the mutagenicity of organic extracts of collected airborne particulate matter is not due to polycyclic aromatic hydrocarbons (PAH). It is possible that part of these unknown compounds are transformation products of PAH. This survey focuses on the reaction of PAH in the atmosphere with other copollutants, such as nitrogen oxides, sulfur oxides, ozone and free radicals and their reaction products. Photochemically induced reactions of PAH are also included. The reactivity of particle-associated PAH is discussed in relation to the chemical composition and the physical properties of the carrier. Recommendations for future work are given.

show abstract

“…As a result, the literature is replete with various new, heavily instrumented methods for the determination of BaP. These include direct gas chromatography-mass spectrometry (2), luminescence spectroscopy (3), or anodic differential pulse voltammetry (4). Estimations of the BaP content of materials such as crude shale oils, coal-derived liquids, coal tar pitch volatiles, and lubricating oils have been reported using these (2) and other (5)(6)(7)(8)(9) methods.…”

Section: Determination Of Benzo[a ]Pyrene In Petroleum Substitutesmentioning

confidence: 99%

Determination of benzo[a]pyrene in petroleum substitutes

Tomkins¹,

Kubota²,

Griest³

et al. 1980

Anal. Chem.

View full text Add to dashboard Cite

Determination of polynuclear aromatic hydrocarbons by anodic differential pulse voltammetry at the glassy carbon electrode in sulfolane and acetonitrile as solvents

Cited by 24 publications

References 14 publications

Suppression of background current in differential pulse voltammetry with solid electrodes

Suppression of background current in differential pulse voltammetry with solid electrodes

The fate of airborne polycyclic organic matter.

Determination of benzo[a]pyrene in petroleum substitutes

Contact Info

Product

Resources

About