Determination of Lead and Cadmium Concentrations in Lettuce and Spinach Using Atomic Absorption Spectroscopy. Journal of Pure and Applied Sciences (Science Forum), [S. l.], v. 26, n. 4, 2026. DOI: 10.70882/61etq757. Disponível em: https://atbuscienceforum.com.ng/index.php/jpas/article/view/586. Acesso em: 8 oct. 2026.