Separation of strontium-89 and -90 from calcium in milk with a macrocyclic ether

Journal Article · Sun Jul 01 00:00:00 EDT 1979 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac50044a005· OSTI ID:6195726

Kimura, T ^[1]; Iwashima, K; Ishimori, T; Hamada, T

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1. Japan Chemical Analysis Center, Tokyo

A small amount of strontium ion (20 mg) was simply separated from a large amount of calcium ion (0.5 to 13.6 g) by liquid--liquid extraction using dicyclohexyl 18-crown-6 chloroform solution. The extraction was applied to a part of the procedure for determining radiostrontium in ash of milk. The overall recovery of strontium was 75% on the average for 5 to 10 g of milk ash. Decontamination factors for Mg, Ca, Ru, I, Cs, Ba, and La in the final fraction were 1 x 10/sup 5/, 1 x 10/sup 4/, > 1 x 10/sup 6/, > 1 x 10/sup 6/, > 2 x 10/sup 6/, 2 x 10/sup 5/, and 3 x 10/sup 4/, respectively. The chemical procedure for three samples took about 2 days. 1 figure, 3 tables.

• OSTI ID: 6195726
• Journal Information: Anal. Chem.; (United States), Vol. 51:8
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CALCIUM
SOLVENT EXTRACTION
STRONTIUM
BARIUM
CESIUM
DECONTAMINATION
EFFICIENCY
ETHERS
LANTHANUM
MAGNESIUM
MILK
QUANTITATIVE CHEMICAL ANALYSIS
RUTHENIUM
STRONTIUM 89
STRONTIUM 90
ALKALI METALS
ALKALINE EARTH ISOTOPES
ALKALINE EARTH METALS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BIOLOGICAL MATERIALS
BODY FLUIDS
CHEMICAL ANALYSIS
CLEANING
DAYS LIVING RADIOISOTOPES
ELEMENTS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
EXTRACTION
FOOD
INTERMEDIATE MASS NUCLEI
ISOTOPES
METALS
NUCLEI
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PLATINUM METALS
RADIOISOTOPES
RARE EARTHS
REFRACTORY METALS
SEPARATION PROCESSES
STRONTIUM ISOTOPES
TRANSITION ELEMENTS
YEARS LIVING RADIOISOTOPES
400105* - Separation Procedures