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Study of the effect of reaction conditions for the spectrophotometric determination of microamounts of lanthanoids by Arsenazo III

A. Košturiak and D. Kalavská

Lehrstuhl für Experimentelle Physik der Naturwissenschaftlichen Fakultät der P. J. Šafárik-Universität, 041 54 Košice


Abstract: The adjustment of reaction conditions for the detn. by spectrophotometry of microamts. of lanthanides with Arsenazo III was studied. In contrast to literature data, the procedure can be performed in glycine buffers (pH 2.8 ± 0.3) with samples contg. up to 80 μg lanthanide/25 mL. The statistical treatment of the results obtained with std. solns. contg. 4-80 μg lanthanide in 25 mL showed that the std. deviation of the arithmetic mean is 5% and that the relative mean error (e%) is at the same level.

Full paper in Portable Document Format: 352a255.pdf (in German)


Chemical Papers 35 (2) 255–262 (1981)

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