MULTICOMPONENT ANALYSIS OF CONCENTRATED-SOLUTIONS BY FLOW-INJECTION ANALYSIS WITH ZONE SAMPLING AND PARTIAL LEAST-SQUARES RESOLUTION

被引：17
作者：
BLANCO, M
COELLO, J
ITURRIAGA, H
MASPOCH, S
REDON, M
RIBA, J
机构：
[1] Departamento de Química, Unidad de Química Analítica, Facultad de Ciencias
来源：
ANALYTICA CHIMICA ACTA | 1992年 / 259卷 / 02期
关键词：
FLOW SYSTEM; SPECTROPHOTOMETRY; COPPER; PARTIAL LEAST SQUARES; ZINC; ZONE SAMPLING;
D O I：
10.1016/0003-2670(92)85371-C
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The potential of a flow-injection-zone sampling system equipped with a diode-array spectrophotometric detector for the simultaneous determination of metal ions in mixtures was studied. Zone sampling was accomplished by using a commercially available, variable-volume, dual-channel bypass injection valve. The mixed spectra were recorded at the maximum of the flow-injection peaks and were resolved into the individual components by using a partial least-squares method. The method was applied to the determinations of Cu(II) and Zn(II) in mixtures with 4-(2-pyridylazo)resorcinol as reagent.
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页码：219 / 224
页数：6
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