DETERMINATION OF SMALL AMOUNTS OF THALLIUM BY ISOTOPE DILUTION METHOD

Journal Article · Tue Jan 01 04:00:00 EST 1963 · Chemia Analityczna (Warsaw) (Poland)

OSTI ID:4677718

Minczewski, J; Rozychi, C

A method of extracting Tl, labeled with Tl/sup 204/ of a known activity, was developed. It consists of extraction by chloroform solution of dithizone from solutions containing sodium hydroxide, sodium potassium tartrate, and potassium cyanide. Thallium is stripped from the chloroform solution of dithizonates with triple distilled water. From the aqueous solution Tl is repeatedly extracted as Tl dithizonate, which is in turn decomposed with acetic acid. The dithizone solution obtained is determined colorimetrically. After determination of acetic acid solution activity, the total amount of Tl is calculated by the isotope dilution. It was found that Pb/sup 2+/, Cd/sup 2+/, Zn/ sup 2+/, Fe/sup 3+/, Co/sup 2+/, Ni/sup 2+/, Hg/sup 2 +/, Bi/sup 3+/, Ag/sup +/, and Cu/sup 2+/ do not interfere. The method was used for the determination of Tl in chamber dusts. (auth)

• Research Organization: Technical Univ., Warsaw
• NSA Number: NSA-17-025125
• OSTI ID: 4677718
• Journal Information: Chemia Analityczna (Warsaw) (Poland), Journal Name: Chemia Analityczna (Warsaw) (Poland) Vol. Vol: 8; ISSN CANWA
• Country of Publication: Country unknown/Code not available
• Language: Polish

Related Subjects

ACETIC ACID
CHEMISTRY
CHLOROFORM
COLOR
CYANIDES
DECOMPOSITION
INTERFERING ELEMENTS
ISOTOPE DILUTION
ISOTOPES
ORGANIC ACIDS
ORGANIC CHLORINE COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PHENYL RADICALS
QUANTITATIVE ANALYSIS
SODIUM COMPOUNDS
SODIUM HYDROXIDES
SOLUTIONS
SOLVENT EXTRACTION
TARTARIC ACID
THALLIUM
THALLIUM 204
THALLIUM COMPLEXES
TRACE AMOUNTS
TRACER TECHNIQUES
WATER