FLOW-INJECTION DETERMINATION OF MIXTURES OF AMINES IMMOBILIZED IN THE FLOW CELL OF A PHOTOMETRIC DIODE-ARRAY DETECTOR

被引：30

作者：

FERNANDEZBAND, B ^{[1
]}

LAZARO, F ^{[1
]}

DECASTRO, MDL ^{[1
]}

VALCARCEL, M ^{[1
]}

机构：

[1] UNIV CORDOBA,FAC SCI,DEPT ANALYT CHEM,CORDOBA,SPAIN

来源：

ANALYTICA CHIMICA ACTA | 1990年 / 229卷 / 02期

关键词：

D O I：

10.1016/S0003-2670(00)85126-0

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A method for the determination of 2,4-dinitrophenylhydrazine and 2- and 4-nitrophenylhydrazine in mixtures based on their different spectral features is proposed. The sample containing the amines is injected into an FIA manifold and passed through the flow cell of a diode-array spectrophotometer where a support (C18 bonded silica) retains the analytes. The amines are concentrated in situ, thereby achieving a determination limit of 5 × 10-7 M. The carrier (phosphate buffer-methanol) rapidly elutes the retained compounds, so a sampling frequency of 40 h-1 could be obtained. The resolution of mixtures of these amines can be carried out with acceptable low errors. © 1990.

引用

页码：177 / 182

页数：6

共 16 条

[1] AN INTRODUCTION TO MULTIVARIATE CALIBRATION AND ANALYSIS [J].

BEEBE, KR ;

KOWALSKI, BR .

ANALYTICAL CHEMISTRY, 1987, 59 (17) :A1007-+

[2] DETERMINATION OF PH, CONDUCTIVITY, RESIDUAL CHLORINE AND AMMONIUM AND NITRITE IONS IN WATER WITH AN UNSEGMENTED FLOW CONFIGURATION [J].

CANETE, F ;

RIOS, A ;

DECASTRO, MDL ;

VALCARCEL, M .

ANALYST, 1988, 113 (05) :739-742

[3]

CANETE F, 1988, ANAL CHIM ACTA, V214, P375, DOI 10.1016/S0003-2670(00)80458-4

[4] SIMULTANEOUS DETERMINATIONS IN FLOW-INJECTION ANALYSIS - A REVIEW [J].

DECASTRO, MDL ;

CASES, MV .

ANALYST, 1984, 109 (04) :413-419

[5]

DECASTRO MDL, 1986, TRAC-TREND ANAL CHEM, V5, P71

[6]

Edmonds TE., 1988, CHEM SENSORS

[7] INTEGRATED REACTION SPECTROPHOTOMETRIC DETECTION IN UNSEGMENTED FLOW SYSTEMS [J].

LAZARO, F ;

DECASTRO, MDL ;

VALCARCEL, M .

ANALYTICA CHIMICA ACTA, 1988, 214 (1-2) :217-227

[8] INTEGRATED RETENTION SPECTROPHOTOMETRIC DETECTION IN FLOW-INJECTION ANALYSIS - DETERMINATION OF IRON IN WATER AND WINE [J].

LAZARO, F ;

DECASTRO, MDL ;

VALCARCEL, M .

ANALYTICA CHIMICA ACTA, 1989, 219 (02) :231-238

[9]

LINARES P, IN PRESS ANAL CHIM A

[10] MULTIVARIATE CALIBRATION .1. CONCEPTS AND DISTINCTIONS [J].

MARTENS, H ;

NAES, T .

TRAC-TRENDS IN ANALYTICAL CHEMISTRY, 1984, 3 (08) :204-210

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