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This is to certify that your paper entitled «Determination of ascorbic acid in copper- ammonia buffer solution with GCE modified with rGO-Fe۲O۳ synthesis by Ferrate (VI)» was indexed with 2 pages, in the CIVILICA citation database, code COI:ELECTROCHEMISTRY017_008, after evaluation and approval of the referees of the "The 17th Annual Iran Electrochemistry Seminar and the 12th Iran Fuel Cell Conference 2023.

While offering our congratulations on the indexation of your paper, please be informed that this certificate is prepared based on the information submitted by the secretariat of the above conference and the information contained in the CIVILICA database, and the accuracy of its content can be inquired at any time through link provided at the bottom of the page or scanning the code image.