NEKOUEI, Shahram; NEKOUEI, Farzin. DEVELOPMENT OF MULTIWALLED CARBON NANOTUBES BASED SOLID PHASE EXTRACTION FOR THE DETERMINATION OF TRACE LEVEL OF Mn(II) AND Sn(IV) IN RIVER WATER SAMPLES. Studia Universitatis Babeș-Bolyai Chemia, [S. l.], v. 60, n. 2, p. 331–341, 2015. Disponível em: https://studia.reviste.ubbcluj.ro/index.php/chemia/article/view/8454. Acesso em: 19 dec. 2024.