SPECTROPHOTOMETRIC DETERMINATION OF MICROQUANTITIES OF NICKEL IN URANIUM WITH DIMETHYLGLYOXIME

Journal Article · Wed Feb 01 04:00:00 EST 1961 · J. At. Energy Soc. Japan

DOI:https://doi.org/10.3327/jaesj.3.89· OSTI ID:4034741

Motojima, K; Hashitani, H; Katsuyama, K

A spectrophotomstric method is critically examined for the determination of microgram quantities of nickel in uranium with dimethylglyoxime. Nickel is determined spaectrophotometrically after extracting its dimethylglyoxime complex with chloroform. Approximately 30 ml of acid solution containing not more than 2.5 g of uranium and 150 mu g of nickel is treated with 10 mi of 30% ammonium citrate solution, 1 ml of 1% dimethylglyoxime solution (1 g in 100 ml of 95% ethanol), and the proper amount of ammonium hydroxide to adjust the pH to 8.8 to 10, and ths volume is brought to 50 ml. Then, the nickel complex is extracted with exactly 10 ml of chloroform, and the absorbance of the extract is measured at 375 m mu using a blank as reference. By this method, as small as 5 mu g of nickel in 2.5 g of uranium can be determined rapidly and accurately. The method provides for ths presence of other metals. (auth)

• Research Organization: Japan Atomic Energy Research Inst., Tokyo
• Sponsoring Organization: USDOE
• NSA Number: NSA-15-015572
• OSTI ID: 4034741
• Journal Information: J. At. Energy Soc. Japan, Journal Name: J. At. Energy Soc. Japan Vol. Vol: 3
• Country of Publication: Country unknown/Code not available
• Language: Japanese

Related Subjects

ABSORPTION
AMMONIUM COMPOUNDS
CHEMISTRY
CHLORINATED HYDROCARBONS
CHLOROFORM
CITRIC ACID
DECAY
DIMETHYLGLYOXIME
DYES
ELECTRONS
MEASURED VALUES
NICKEL
NICKEL COMPLEXES
ORGANIC COMPOUNDS
PHOTOMETRY
PIONS
PIONS-NEUTRAL
POSITRONS
QUANTITATIVE ANALYSIS
SPECTRA
URANIUM