STUDY OF SPADNS AS MOBILE-PHASE COMPLEXING AGENT FOR METAL-ION SEPARATION IN REVERSED-PHASE HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHY

被引：3
|
作者：
FERNANDEZ, F [1 ]
MARINA, ML [1 ]
RODRIGUEZ, AR [1 ]
机构：
[1] UNIV ALCALA DE HENARES, FAC SCI, DEPT ANALYT CHEM, E-28871 MADRID, SPAIN
来源：
MICROCHEMICAL JOURNAL | 1991年 / 44卷 / 03期
关键词：
D O I：
10.1016/0026-265X(91)90058-W
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The possibility of employing SPADNS as a mobile-phase complexing agent in RP-HPLC determination of metal ions has been investigated. Separation of Fe(II), Cu(II), and SPADNS has been performed using a 50:50 ( v v) methanol-water mixture 0.02 M in TBA and 10-5 M in SPADNS as mobile phase. Sensitivity was very poor with this mobile phase. When the SPADNS concentration in the solution was increased to 10-3 M, sensitivity improved and detection limits of 2.1 and 1.7 ppm for Fe(III) and Cu(II), respectively, were obtained. However, no selectivity was obtained under these conditions. © 1991.
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页码：335 / 338
页数：4
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