Analysis of salicylic acid in willow barks and branches by an electrochemical method

An electrochemical method for measuring free salicylic acid (SA) was optimized and used to detect its content in barks and branches of thirteen Salix species. We utilized square wave voltammetry method in combination with pencil lead, the detection limit of which was 1.7 ng/ml of salicylic acid. The...

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Bibliographic Details
Published inRussian journal of plant physiology Vol. 54; no. 4; pp. 553 - 558
Main Authors Petrek, J, Havel, L, Petrlova, J, Adam, V, Potesil, D, Babula, P, Kizek, R
Format Journal Article
LanguageEnglish
Published Moscow : Nauka/Interperiodica 01.07.2007
Subjects
electrochemical method
salicylic acid
Salix
square wave and cyclic voltammetry
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Summary:An electrochemical method for measuring free salicylic acid (SA) was optimized and used to detect its content in barks and branches of thirteen Salix species. We utilized square wave voltammetry method in combination with pencil lead, the detection limit of which was 1.7 ng/ml of salicylic acid. The highest contents of free SA were observed in the bark of S. laponum (3.0 mg/g fr wt) and in the branches of S. purpurea, cv. Nana (2.1 mg/g fr wt) and S. planifolia (2.2 mg/g fr wt). The technique utilized for determination of SA in willow tissues has a much broader dynamic range and lower limit of detection in comparison to both linear sweep and cyclic voltammetry because of its efficient discrimination of capacitance current.
Bibliography:http://dx.doi.org/10.1134/S1021443707040188
ISSN:1021-4437
1608-3407
DOI:10.1134/S1021443707040188