@article{articleced1e35d,
title   = {Sulphate preconcentration by anion exchange resin in flow injection and its turbidimetric of termination in water},
author = {Santos Filha, M M and Reis, Boaventura Freire dos and Krug, Francisco José and Collins, C H and Baccan, Nivaldo},
year = {1993},
doi = {10.1016/0039-9140(93)80364-w},
journal   = {Talanta}
}