SPECTROPHOTOMETRIC DETERMINATION OF URANIUM IN NATURAL-WATERS

被引：28

作者：

BERMEJOBARRERA, A

YEBRABIURRUN, MC

FRAGATRILLO, LM

机构：

[1] Department of Analytical Chemistry, Nutrition and Bromatology, Chemistry Faculty, University of Santiago de Compostela, Santiago de Compostela

来源：

ANALYTICA CHIMICA ACTA | 1990年 / 239卷 / 02期

关键词：

Uranium; Waters;

D O I：

10.1016/S0003-2670(00)83870-2

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A method for the spectrophotometric determination of uranium in samples of natural water is described. Ion exchange with Amberlite IR-120 (H+) to concentrate the metal was used. The absorption properties of the complex formed between uranium and the chromogenic reagent Arsenazo III, its stability over several hours, the effect of the pH on the ability of the resin to retain uranium, the reproducibility of the method and the effects of ionic interferences were considered. The sensitivity was 0.67 and 0.05 μg l-1 of uranium for the direct and the addition methods, respectively. Uranium concentrations for the samples analysed were between 0.10 and 0.50 μg l-1. © 1990.

引用

页码：321 / 323

页数：3

共 15 条

[1]

BAUMANN EW, 1977, DETERMINATION TRACE, P16

[2]

Bowen H. J. M, 1979, ENV CHEM ELEMENTS

[3]

BRITS RJN, 1976, RADIOCHEM RADIOA LET, V27, P257

[4] DETERMINATION OF URANIUM IN NATURAL-WATER BY PRECONCENTRATION ON ANION-EXCHANGE RESIN AND DELAYED-NEUTRON COUNTING [J].

BRITS, RJN ;

SMIT, MCB .

ANALYTICAL CHEMISTRY, 1977, 49 (01) :67-69

[5] SELECTIVE SPECTROPHOTOMETRIC DETERMINATION OF URANIUM [J].

BUDESINSKY, BW .

MICROCHEMICAL JOURNAL, 1977, 22 (01) :50-54

[6] APPLICATION OF ION-EXCHANGE SEPARATIONS TO DETERMINATION OF TRACE-ELEMENTS IN NATURAL-WATERS .9. SIMULTANEOUS ISOLATION AND DETERMINATION OF URANIUM AND THORIUM [J].

KORKISCH, J ;

KRIVANEC, H .

TALANTA, 1976, 23 (04) :295-300

[7]

LUO L, 1984, FENXI HUAXUE, V12, P557

[8]

MOHAI M, 1975, MAGY KEM FOLY, V71, P334

[9] DETERMINATION OF URANIUM AND THORIUM CONCENTRATION IN NATURAL-WATERS [J].

PAUNESCU, N .

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-LETTERS, 1986, 104 (04) :209-216

[10]

PETROV BI, 1983, ZH ANAL KHIM, V38, P80

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