DESIGN OF A MULTICHANNEL DROPPING SEGMENTER FOR LIQUID-LIQUID-EXTRACTION CONTINUOUS FLOW-INJECTION ANALYSIS

被引:17
作者
KUBAN, V [1 ]
INGMAN, F [1 ]
机构
[1] MASARYK UNIV, DEPT ANALYT CHEM, CS-61137 BRNO, CZECHOSLOVAKIA
关键词
FLOW SYSTEM; COPPER; EXTRACTION; SEGMENTER;
D O I
10.1016/S0003-2670(00)80229-9
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A simple dual-channel dropping segmenter was used for the simultaneous introduction of aqueous solutions of a sample and an organic analytical reagent directly into a continuous flow of an immiscible organic solvent. Droplets of precisely defined volume of the homogeneous reaction mixture are formed at the junction of the inlet capillary system. Reaction and extraction take place simultaneously in the individual segments of the aqueous phase during the transport through the reaction/extraction coil. An analytical signal is measured by an "on-tube" fast-reading spectrophotometric detector and processed mathematically. The applicability of the method is demonstrated with the determination of Cu(II) ions with tetramethylene-dithiocarbamate in neutral medium in 0.1 M ammonium acetate buffer.
引用
收藏
页码:251 / 257
页数:7
相关论文
共 15 条
[1]   DISPERSION IN PHASE SEPARATORS FOR FLOW-INJECTION EXTRACTION SYSTEMS [J].
BACKSTROM, K ;
DANIELSSON, LG ;
NORD, L .
ANALYTICA CHIMICA ACTA, 1986, 187 :255-269
[2]   CHARACTERIZATION OF SOLVENT-EXTRACTION FLOW-INJECTION ANALYSIS WITH CONSTANT PRESSURE PUMPING AND DETERMINATION OF PROCYCLIDINE HYDROCHLORIDE IN TABLETS [J].
FOSSEY, L ;
CANTWELL, FF .
ANALYTICAL CHEMISTRY, 1982, 54 (11) :1693-1697
[3]   DETERMINATION OF ACIDITY CONSTANTS BY SOLVENT-EXTRACTION FLOW-INJECTION ANALYSIS USING A DUAL-MEMBRANE PHASE SEPARATOR [J].
FOSSEY, L ;
CANTWELL, FF .
ANALYTICAL CHEMISTRY, 1985, 57 (04) :922-926
[4]   FLOW-INJECTION EXTRACTION IN THEORY AND PRACTICE [J].
KARLBERG, B .
FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE, 1988, 329 (06) :660-662
[5]   THE THEORETICAL AND PRACTICAL DEVELOPMENT OF FLOW-INJECTION EXTRACTION [J].
KARLBERG, B .
ANALYTICA CHIMICA ACTA, 1988, 214 (1-2) :29-39
[6]   DESIGN OF COAXIAL SEGMENTORS FOR LIQUID-LIQUID-EXTRACTION FLOW-INJECTION ANALYSIS [J].
KUBAN, V ;
DANIELSSON, LG ;
INGMAN, F .
ANALYTICAL CHEMISTRY, 1990, 62 (18) :2026-2032
[7]   KINETICS OF SOLVENT-EXTRACTION FLOW-INJECTION ANALYSIS [J].
LUCY, CA ;
CANTWELL, FF .
ANALYTICAL CHEMISTRY, 1989, 61 (02) :101-107
[8]   MECHANISM OF EXTRACTION AND BAND BROADENING IN SOLVENT-EXTRACTION FLOW-INJECTION ANALYSIS [J].
LUCY, CA ;
CANTWELL, FF .
ANALYTICAL CHEMISTRY, 1989, 61 (02) :107-114
[9]   EXTRACTION RATE IN LIQUID-LIQUID SEGMENTED FLOW-INJECTION ANALYSIS [J].
NORD, L ;
BACKSTROM, K ;
DANIELSSON, LG ;
INGMAN, F ;
KARLBERG, B .
ANALYTICA CHIMICA ACTA, 1987, 194 :221-233
[10]   EXTRACTION BASED ON THE FLOW-INJECTION PRINCIPLE .6. FILM FORMATION AND DISPERSION IN LIQUID LIQUID SEGMENTED FLOW EXTRACTION SYSTEMS [J].
NORD, L ;
KARLBERG, B .
ANALYTICA CHIMICA ACTA, 1984, 164 (OCT) :233-249