Tubular and Microcylindrical Platinum Electrodes for Amperometric Detection of Aminobiphenyls and Aminonaphthalenes in HPLC

Platinum electrodes in microcylindrical and tubular arrangements were compared as working electrodes for amperometric detection of 2‐aminobiphenyl, 4‐aminobiphenyl, 1‐aminonaphthalene, and 2‐aminonaphthalene in HPLC. Factors influencing separation efficiency are favourable for microcylindrical arran...

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Bibliographic Details
Published in:Electroanalysis (New York, N.Y.) N.Y.), 2014-04, Vol.26 (4), p.687-696
Main Authors: Zavazalova, Jaroslava, Dejmkova, Hana, Barek, Jiri, Peckova, Karolina
Format: Article
Language:English
Subjects:
Aminoderivatives of polycyclic aromatic hydrocarbons
Electrical measurements
Electrochemical detection
Electrodes
Extraction
Nanostructure
Platinum
Platinum electrode
Separation
Solid phase extraction
Solid phases
Urine
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Summary:Platinum electrodes in microcylindrical and tubular arrangements were compared as working electrodes for amperometric detection of 2‐aminobiphenyl, 4‐aminobiphenyl, 1‐aminonaphthalene, and 2‐aminonaphthalene in HPLC. Factors influencing separation efficiency are favourable for microcylindrical arrangement while tubular arrangement exhibits higher sensitivities and lower limits of detection. These are in the range of 0.0078–0.027 µmol L−1 for tubular, and 0.11–0.42 µmol L−1 for microcylindrical arrangement. Further, a new method with nanomolar detection limits was proposed for determination of tested compounds in urine using solid phase extraction for preliminary separation and preconcentration of the analytes.
ISSN:1040-0397
1521-4109
DOI:10.1002/elan.201300579