PAPER CHROMATOGRAPHIC SEPARATION AND COMPLEXOMETRIC TITRATION OF TRACE AMOUNTS OF STRONTIUM AND CALCIUM IN BIOLOGICAL MATERIAL

Journal Article · Sat Apr 01 04:00:00 EST 1961 · Analytical Chemistry (U.S.) Formerly Ind. Eng. Chem., Anal. Ed.

DOI:https://doi.org/10.1021/ac60172a024· OSTI ID:4062928

Dumont, P A

A specific, sensitive, and simple method of simultaneously determining calcium and strontium in biological material is described. Samples are burned in a closed atmosphere of oxygen, then taken up in dilute HNO/sub 3/. An aliquot is submitted to ascending paper chromatography. Calcium and strontium are separated from each othe-r, then recovered by calcination. Both elements are estimated by complexometric microtitration with EDTA, using calcein as indicator. Amounts of 25 x 10/sup -9/M calcium and strontium are quantitatively recovered to within 1 to 2% and can be determined with a coefficient of variation of about 5%. For larger quantities, the reproducibility ranges from 1 to 4%. (auth)

• Research Organization: Univ. of Louvain, Belg.
• Sponsoring Organization: USDOE
• NSA Number: NSA-15-014217
• OSTI ID: 4062928
• 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: 33; ISSN ANCHA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ATMOSPHERE
BIOLOGICAL MATERIALS
CALCIUM
CHEMISTRY
CHROMATOGRAPHY
COMPLEXES
EDTA
NITRIC ACID
OXYGEN
PAPER
RECOVERY
SEPARATION PROCESSES
STRONTIUM