Free Access
| Issue |
Analusis
Volume 28, Number 4, June 2000
MS for the study of natural mechanisms
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|---|---|---|
| Page(s) | 302 - 307 | |
| Section | Original articles | |
| DOI | https://doi.org/10.1051/analusis:2000119 | |
Analusis 28, 302-307 (2000)
DOI: 10.1051/analusis:2000119
1 Schneider Electric SA, 33 bis, avenue du Maréchal Joffre, 92002 Nanterre Cedex, France
2 LSGC/CNRS - ENSIC/INPL, 1, rue Grandville, BP 451, 54001 Nancy Cedex, France
(Received December 6, 1999; revised June 15, 2000; accepted July 4, 2000.)
Key words: Sodium content -- impurity -- silver -- metal oxide -- matrix effect -- flame spectrophotometer.
© EDP Sciences, Wiley-VCH 2000
DOI: 10.1051/analusis:2000119
Determination of residual sodium content in silver and silver oxide composite materials
R. Vivier1, L. Muhr2, H. Muhr2 and E. Plasari21 Schneider Electric SA, 33 bis, avenue du Maréchal Joffre, 92002 Nanterre Cedex, France
2 LSGC/CNRS - ENSIC/INPL, 1, rue Grandville, BP 451, 54001 Nancy Cedex, France
(Received December 6, 1999; revised June 15, 2000; accepted July 4, 2000.)
Abstract
The presence of silver ions deforms strongly the linear response for
sodium determination by flame spectrophotometry. Relative errors up to
60% can be obtained if linear instead of non-linear relations are used.
A correction function is defined and a method based on mathematical
considerations is proposed for elimination of interference in determination
of sodium concentration.
Key words: Sodium content -- impurity -- silver -- metal oxide -- matrix effect -- flame spectrophotometer.
© EDP Sciences, Wiley-VCH 2000