2026-04-17T19:02:09Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/102292025-06-04T12:54:32Zcom_10259_3844com_10259_5086com_10259_2604col_10259_7686col_10259_5684

00925njm 22002777a 4500 dc Olmo Alonso, Fabiola author Rodríguez Rubio, Andrea author Colina Santamaría, Álvaro author Heras Vidaurre, Aránzazu author 2024-05-03 UV/Vis absorption spectroelectrochemistry is a very promising analytical technique due to the complementary information that is simultaneously obtained from electrochemistry and spectroscopy. In this work, this technique is used in a parallel configuration to study the oxidation of folic acid in alkaline medium. Herein, UV/Vis absorption spectroelectrochemistry has been used to detect both the oxidation products and the folic acid consumed at the electrode/solution interface, allowing us to develop an analytical protocol to quantify vitamin B9 in pharmaceutical tablets. Linear ranges of three orders of magnitude have been achieved in basic medium (pH = 12.9), obtaining high repeatability and low detection limits. The spectroelectrochemical determination of folic acid in pharmaceutical tablets at alkaline pH values is particularly interesting because of the changes that occur in the optical signal during the electrochemical oxidation of FA, providing results with very good figures of merit and demonstrating the utility and versatility of this hyphenated technique, UV/Vis absorption spectroelectrochemistry. http://hdl.handle.net/10259/10229 10.71486/sc0z-9x73 Vitamin B9 Pharmaceutical drug Electrochemistry UV/Vis absorption spectroscopy Dataset of the work “UV Vis absorption spectroelectrochemistry of folic acid”