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Simple and Sensitive Determination of Sibutramine in Slimming Tea Beverages Using a Carbon Screen‐printed Electrode with Adsorptive Stripping Voltammetry
Author(s) -
Lima Amanda B.,
dos Santos Wallans T. P.,
Compton Richard G.
Publication year - 2019
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.201800888
Subject(s) - sibutramine , adulterant , chemistry , differential pulse voltammetry , stripping (fiber) , voltammetry , chromatography , detection limit , adsorptive stripping voltammetry , electrode , cyclic voltammetry , electrochemistry , materials science , weight loss , medicine , composite material , obesity
The stimulant sibutramine is an anorexic agent found as an adulterant in natural products and multivitamins supplements used for weight‐loss. In this work, a carbon graphite screen‐printed electrode (SPE‐Gr) with adsorptive stripping pulse differential voltammetry (AdSDPV) is presented for the sensitive and simple detection of sibutramine in slimming tea beverages. The proposed electrochemical method shows a linear working range from 2.0 to 120 μM with a low LOD (0.3 μM) for sibutramine determination in slimming tea samples. The analytical performance of the SPE‐Gr with AdSDPV for sibutramine detection suggests its possible application as an easy, fast and low‐cost method to analyse adulterated tea samples with this stimulant at low levels (<0.1 %).