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Determination of tert-butylhydroxyanisole and tert-butylhydroxytoluene by flow injection with amperometric detection

✍ Scribed by P. Yáñez-Sedeño; J.M. Pingarrón; L.M. Polo Díez

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
780 KB
Volume
252
Category
Article
ISSN
0003-2670

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✦ Synopsis

Two flow-injection methods are described for the determination of the antioxidants tert-butylhydroxyanisole (BHA) and tert-butylhydroxytoluene (BHT) based on their oxidation al a glassy carbon electrode. In both instances, the analytical solution is injected into a carrier stream consisting of a solution of perchloric acid and 5% (v/v) methanol. Calibration graphs are linear in the concentration ranges 1.

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Electrocatalytic and flow-injection determination of the antioxidant tert.-butylhydroxyanisole at a nickel phthalocyanine polymer modified electrode
✍ M.A. Ruiz; M.G. Blázquez; J.M. Pingarrón 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 687 KB

The behaviour of a nickel phthalocyanine polymer-coated glassy carbon electrode has been investigated in order to test it as an amperometric detector in flow systems. The oxidation process of the antioxidant terf.-butylhydroxyanisole (BHA) has been studied for this purpose. The monomer Ni(II)-4,9,16