A Novel Disposable Bamboo Biochar-Based Electrochemical Sensor for Detecting the Nonsteroidal Anti-Inflammatory Drug Flufenamic Acid in Environmental Samples - Francisco Walison Lima Silva; Luís Eduardo da Conceição Teixeira; Cassiano Augusto Rolim Bernardino; Claudio Fernando Mahler; Renata Coura Borges; Ricardo Erthal Santelli; Fernando Henrique Cincotto (ACS Omega)