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An Electrochemical Approach for the Cucurbit[7]uril/Carbendazim Supramolecular Inclusion Complex. Application to Carbendazim Determination in Apples
Author(s) -
del Pozo María,
Alonso Marina,
Hernández Lucas,
Quintana Carmen
Publication year - 2011
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201000442
Subject(s) - carbendazim , supramolecular chemistry , detection limit , fungicide , analyte , chemistry , differential pulse voltammetry , complex matrix , matrix (chemical analysis) , electrochemistry , molecule , chromatography , organic chemistry , electrode , horticulture , biology , cyclic voltammetry
This work presents the electrochemical behaviour of the supramolecular complex formed between the macrocyclic receptor cucurbit[7]uril and the fungicide carbendazim. Moreover, this host molecule is used to develop a selective and sensitive differential pulse voltammetric method for the determination of carbendazim through its cucurbit[7]uril inclusion complex, allowing the detection of the analyte at 4.25×10 −9 M. The method was applied to the determination of the fungicide in untreated apple peel samples after a matrix solid‐phase dispersion sample preparation procedure. The detection limit calculated for this real sample was 0.17 mg kg −1 , which is below the legally allowed limit of 0.20 mg kg −1 .