Detection of Sodium in Highly Pure Graphite via High-Resolution Electrothermal Atomic Absorption Spectrometry with a Continuous Spectrum Source

Journal Article · Fri Dec 15 04:00:00 EST 2017 · Inorganic Materials

DOI:https://doi.org/10.1134/S0020168517140059· OSTI ID:22788291

Dal’nova, O. A. ^[1]; Tursunov, L. Kh. ^[2]; Baranovskaya, V. B. ^[1]; Karpov, Yu. A. ^[3]

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1. State Research and Design Institute Giredmet (Russian Federation)
2. SAITEGRA Ltd. (Russian Federation)
3. National Research Technological University MISiS (Russian Federation)

This study is dedicated to elucidating the analytical abilities of electrothermal atomic absorption spectrometry with a continuous spectrum source (ETAAS-CSS) to detect the presence of sodium in highly pure graphite powder. In order to plot the calibration dependence for sodium detection, a special technique based on argon dilution of the atomic vapor obtained by introducing the aqueous reference solution in the atomizer is applied. The conditions for thermal pretreatment of highly pure graphite powder and atomization of sodium are established, and the sodium detection threshold is evaluated via ETAAS-CSS (2.6 × 10{sup –4} ng) as well. The validity of the results is confirmed via the sample variation method.

• OSTI ID: 22788291
• Journal Information: Inorganic Materials, Journal Name: Inorganic Materials Journal Issue: 14 Vol. 53; ISSN INOMAF; ISSN 0020-1685
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ABSORPTION SPECTROSCOPY
ARGON
ATOMIZATION
CALIBRATION
DETECTION
DILUTION
GRAPHITE
POWDERS
RESOLUTION
SODIUM
SOLUTIONS
VAPORS