DETERMINACION ESPECTROFOTOMETRICA DE ZR (IV) MEDIANTE ACIDO 2-QUINIZARIN-SULFONICO = DOSAGE SPECTROPHOTOMETRIQUE DE ZR(IV) A L'AIDE D'ACIDE QUINIZARINESULFONIQUE-2CAPITAN GARCIA F; GUIRAUM A.1971; REV. UNIV. INDUSTR. SANTANDER, TECNOL.; COLOMBIA; DA. 1971; NO 4; PP. 13-25; ABS. ANGL.; BIBL. 5 REF.Serial Issue

Determination of iron at ng/ml level by solid phase spectrophotometry after preconcentration on cation exchange filtersCAPITAN GARCIA, F; CHECA, R; AVIDAD, R et al.Talanta (Oxford). 1995, Vol 42, Num 5, pp 711-715, issn 0039-9140Article