STUDY ON ENRICHMENT AND SEPARATION OF TRACE ELEMENTS WITH SILICA GELS MODIFIED BY HETEROCYCLIC AZO DYES
Ke An LI, Feng LIU, Shen Yang TONG
STUDY ON ENRICHMENT AND SEPARATION OF TRACE ELEMENTS WITH SILICA GELS MODIFIED BY HETEROCYCLIC AZO DYES
Ke An LI, Feng LIU, Shen Yang TONG
中国化学快报 . 1991, (08): 633 -636 .