Direct determination of ultratraces of thallium in water by flow-injection-differential-pulse anodic stripping voltammetry

被引：69
作者：
Lukaszewski, Z
Zembrzuski, W
Piela, A
机构：
[1] Technical University of Poznan, Institute of Chemistry
来源：
ANALYTICA CHIMICA ACTA | 1996年 / 318卷 / 02期
关键词：
stripping voltammetry; flow injection; ultratraces; waters; thallium; river water; tap water;
D O I：
10.1016/0003-2670(95)00436-X
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A direct method for the determination of thallium concentrations on the order of 10(-11) M was developed. Long deposition times (up to 2 h) performed in the flow system with circulation of the analyte ensured the necessary preconcentration. A large volume sample (100 ml) was used to prevent depletion of thallium during deposition. The flow-through cell of a wall-jet type with the mercury film electrode based on an epoxy resin impregnated graphite was used. The detection limit of the method is 2 ng l(-1) at 90 min preconcentration). A spike of 0.05 M EDTA was found to be an effective preservative for fresh water samples. Numerous examples of determinations of thallium in tap water and river water are given.
引用
收藏
页码：159 / 165
页数：7
相关论文
共 16 条
[1]   DETERMINATION OF THALLIUM IN NATURAL-WATERS BY ANODIC-STRIPPING VOLTAMMETRY [J].
BATLEY, GE ;
FLORENCE, TM .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1975, 61 (02) :205-211
[2]   A DIRECT DIFFERENTIAL PULSE ANODIC-STRIPPING VOLTAMMETRIC METHOD FOR THE DETERMINATION OF THALLIUM IN NATURAL-WATERS [J].
BONELLI, JE ;
TAYLOR, HE ;
SKOGERBOE, RK .
ANALYTICA CHIMICA ACTA, 1980, 118 (02) :243-256
[3]   DETERMINATION OF THALLIUM IN LEAD SALTS BY DIFFERENTIAL PULSE ANODIC-STRIPPING VOLTAMMETRY [J].
CISZEWSKI, A ;
LUKASZEWSKI, Z .
TALANTA, 1983, 30 (11) :873-875
[4]   ELECTROCHEMICAL MASKING OF LARGE AMOUNTS OF COPPER IN DPASV AND THE DETERMINATION OF THALLIUM IN THE PRESENCE OF A LARGE EXCESS OF COPPER [J].
CISZEWSKI, A ;
LUKASZEWSKI, Z .
TALANTA, 1985, 32 (12) :1101-1104
[5]   DEPOSITION OF TRACE-METALS ON SOLID ELECTRODES - EXPERIMENTAL-VERIFICATION OF LIMITS OF ELECTROCHEMICAL PRECONCENTRATION [J].
CISZEWSKI, A ;
FISH, JR ;
MALINSKI, T ;
SIODA, RE .
ANALYTICAL CHEMISTRY, 1989, 61 (08) :856-860
[6]   POTENTIOMETRIC STRIPPING ANALYSIS OF THALLIUM IN NATURAL-WATERS [J].
CLEVEN, R ;
FOKKERT, L .
ANALYTICA CHIMICA ACTA, 1994, 289 (02) :215-221
[7]  
DERUCK A, 1987, MIKROCHIM ACTA, V2, P187
[8]   THALLIUM CONCENTRATIONS IN SEAWATER [J].
FLEGAL, AR ;
PATTERSON, CC .
MARINE CHEMISTRY, 1985, 15 (04) :327-331
[9]   DETERMINATION OF THALLIUM IN SOILS BY FLOW-INJECTION DIFFERENTIAL PULSE ANODIC-STRIPPING VOLTAMMETRY [J].
LUKASZEWSKI, Z ;
ZEMBRZUSKI, W .
TALANTA, 1992, 39 (03) :221-227
[10]   DETERMINATION OF THALLIUM AND LEAD IN CADMIUM SALTS BY ANODIC-STRIPPING VOLTAMMETRY WITH ADDITION OF SURFACTANTS TO SUPPRESS THE CADMIUM PEAKS [J].
LUKASZEWSKI, Z ;
PAWLAK, MK ;
CISZEWSKI, A .
TALANTA, 1980, 27 (02) :181-185
12