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  • P-ISSN 1225-0163
  • E-ISSN 2288-8985

Determination of Trace Strontium with o-Cresolphthaleoxon by Electroanalytical method

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1993, v.6 no.3, pp.247-254
Choi, Won Hyung
Lee, Jin Sik
Kim, Do Hoon
Kim, Jae Soo
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Abstract

Strontium can not be determined by conventional dc polarography method since it is very difficult to be reduced at the drop mercury electrode(DME) in aqueous solution. However the analytical sensitivity was improved by adsorptive stripping voltammetry in which electro-reduction of ligand in a complex formed between strontium and o-cresolphthaleoxone was performed. Strontium could be determined in range of <TEX>$5{\sim}30{\mu}g/L$</TEX> concentration. This method was affected by coexistent alkali earth metal ions. Consequently ion exchange separation is recommended to analyze strontium in samples.

keywords
Strontium, Adsorptive Stripping Voltammetry, Glassy Carbon Electrode


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