Bisphenol A (BPA), which is an endocrine-disrupting substance, often utilized as beverage and food packing material, it may accumulate in nutrition water sources, why important to monitor. In this study, for the determination of bisphenol A, electro-polymerization glutamic acid (GA) was performed on a pencil graphite electrode (PGE). The performance sensor (PGA/PGE) determining examined utilizi...