STUDIES ON THE COMPLEXES OF ALKALINE-EARTH METALS WITH CITRIC ACID, ISOCITRIC ACID, AND ALLOISOCITRIC ACID BY AN ION-EXCHANGE METHOD

Journal Article · Thu Nov 01 00:00:00 EST 1962 · Yakugaku Zasshi (Japan)

OSTI ID:4042044

Tamura, Z; Matsushima, Y

Stability constarts of the complexes formed between alkaline earth metals and three forms of citric acid were determined using Amberlite IR-l20 resin and /sup 45/Ca, Sr, and /sup 133/Ba. Comparison of these results with those of biological studies suggests that the values of K/sub sr//K/sub Ca/ are more important than the stability constants themselves for the effective excretion of radiostrontium from the body. The stability constants (log K values) of the complexes with citric, isocitric, and alloisocitric acids were as follows: for the Ca complex 3.15, 2.28, 1.91; for Sr ratio of all complexes was 1: 1 and all measuremerts were carried out in ionic strength 0.156 diethylbarbiturate buffer at 25 deg C with organic acid concentrations of 0.5 to 5 mM. (BBB)

• Research Organization: Tokyo Univ.
• NSA Number: NSA-18-017826
• OSTI ID: 4042044
• Journal Information: Yakugaku Zasshi (Japan), Vol. Vol: 82; Other Information: Orig. Receipt Date: 31-DEC-64
• Country of Publication: Country unknown/Code not available
• Language: Japanese

Related Subjects

CHEMISTRY
ACIDITY
ALKALINE EARTH METALS
AMBERLITE
BARIUM 133
BARIUM COMPLEXES
BARIUM COMPOUNDS
BIOLOGY
BODY
CALCIUM 45
CALCIUM COMPLEXES
CALCIUM COMPOUNDS
CITRIC ACID
COMPLEXES
COMPOUNDS
CONFIGURATION
DRUGS
ETHYL RADICALS
EXCRETION
HETEROCYCLICS
ION EXCHANGE
ION EXCHANGE MATERIALS
ISOMERS
MAN
MEASURED VALUES
MOLECULES
ORGANIC ACIDS
ORGANIC NITROGEN COMPOUNDS
QUANTITY RATIO
RADIOBIOLOGY
RESINS
SOLUTIONS
STABILITY
STRONTIUM 90
STRONTIUM COMPLEXES
STRONTIUM COMPOUNDS
TABLES
TRACER TECHNIQUES
WATER