Determination of strontium in human tooth enamel by atomic absorption spectrometry

Journal Article · Mon Apr 01 04:00:00 EDT 1974 · Analytica Chimica Acta

DOI:https://doi.org/10.1016/S0003-2670(01)80891-6· OSTI ID:4301502

Helsby, Christine A.

Interferences in the atomic absorption of strontium by calcium and phosphate at the levels found in human tooth enamel were investigated for both air- acetylene and nitrous oxide- acetylene flames. In air-- acetylene flames, the interferences can be reduced by the addition of lanthanum(III); but perchloric acid, used for sample dissolution, causes a significant reduction in the calcium-- phosphate interference, so that a standard addition method can be applied, without the need for any chemical separations. An average recovery of 98.6% for added amounts of strontium to enamel showed the proposed method to be reliable.

• Research Organization: Univ. of Manchester, Eng.
• Sponsoring Organization: USDOE
• NSA Number: NSA-29-029018
• OSTI ID: 4301502
• Journal Information: Analytica Chimica Acta, Journal Name: Analytica Chimica Acta Journal Issue: 2 Vol. 69; ISSN 0003-2670
• Publisher: Elsevier
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

*STRONTIUM-- ABSORPTION SPECTROSCOPY
*TEETH-- CHEMICAL ANALYSIS
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
ENAMELS
INTERFERING ELEMENTS
PERCHLORIC ACID
QUANTITATIVE CHEMICAL ANALYSIS