Determination of cefotaxime, cefoperazone, ceftazidime and cefadroxil using surface plasmon resonance band of silver nanoparticles. Braz. J. Pharm. Sci. [Internet]. 2018 Nov. 29 [cited 2024 May 17];54(3):e17565. Available from: https://revistas.usp.br/bjps/article/view/153856