A STUDYING SYNTHESIS OF A CHELATE-FORMING SORBENT BASED ON UREA-FORMALDEHYDE AND DIPHENYLCARBAZONE : STUDYING SYNTHESIS OF A CHELATE-FORMING SORBENT BASED ON UREA-FORMALDEHYDE AND DIPHENYLCARBAZONE . Indian Journal of Chemistry (IJC), [S. l.], v. 63, n. 6, p. 579–585, 2024. DOI: 10.56042/ijc.v63i6.9006. Disponível em: https://or.niscpr.res.in/index.php/IJC/article/view/9006. Acesso em: 20 may. 2026.