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Accurate and reliable determination of synthetic dyes in foodstuff is very important to underpin their regulation so as to prevent harm to consumers. Herein, a poly(L-phenylalanine)-modified glassy carbon electrode (PLPA/GCE) for the determination of sunset yellow (SY) and tartrazine (Tz) was fabricated through electrochemical immobilization. The electrochemical behavior of SY and Tz at the PLPA/GCE...
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