ULTRAVIOLET SPECTROPHOTOMETRIC DETERMINATION OF THORIUM WITH 2,4- DICHLOROPHENOXYACETIC ACID

Journal Article · Sun Feb 01 04:00:00 EST 1959 · Analytical Chemistry (U.S.) Formerly Ind. Eng. Chem., Anal. Ed.

OSTI ID:4295000

Datta, S K

The thorium salt of 2,4-dicblorophenoxyacetic acid is soluble in an aqueous ammonium carbonate solution. The solution of this saltlike compound shows maximum absorbance at a wave length of 230 m mu and follows Beer's law. The spectrophotometric determination of thorium is based on the measurement of the absorbance of this solution. The sensitivity of the method is 0.019 gamma of thorium per sq cm, but the accuracy is poor in samples containing less than 2 mg of thorium. The common metals do not interfere, but strong interference is exhibited by iron, cerium(IV), and zirconium. The optimum results are obtained in a concentration range between 2 and 14 mg of thorium per liter. (auth)

• Research Organization: Darjeeling Government Coll., India
• NSA Number: NSA-13-008672
• OSTI ID: 4295000
• Journal Information: Analytical Chemistry (U.S.) Formerly Ind. Eng. Chem., Anal. Ed., Journal Name: Analytical Chemistry (U.S.) Formerly Ind. Eng. Chem., Anal. Ed. Vol. Vol: 31; ISSN ANCHA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ABSORPTION
ACETIC ACID
AMMONIUM COMPOUNDS
CARBONATES
CERIUM
CHEMISTRY
ERRORS
FREQUENCY
IRON
ORGANIC CHLORINE COMPOUNDS
ORGANOMETALLICS
PHENYL RADICALS
PHOTOMETRY
QUANTITATIVE ANALYSIS
SOLUTIONS
SPECTROSCOPY
THORIUM
THORIUM COMPOUNDS
TRACE AMOUNTS
ULTRAVIOLET RADIATION
WATER
ZIRCONIUM