Preparation of a Selective Electrode for Determination of Lanthanum ion (III) Using Carbon Paste Electrode

Authors

  • Hajar Nasser Tishreen University
  • Ali Hasan Tishreen University

Abstract

In This Study we adopt Prepration a new carbon paste electrode was prepared  for   lanthanum  ions  based on a (5% complex: ( 1,3-di phenyl - 5 - paranitrophenyl Formazan )  With lanthanum Ions as  Ionophore ( 42.5% Dibutyle Phthalate , 0.14% Tetra Phenyl Borate Sodium ,52.5% Graphite Powder) , This electrode revealed  a good selectivity for Lanthanum ions over a wide Linear Range of concentration ( 1.0 ˣ 10-7 – 1.0 ˣ 10-1 ) M . the electrode exhibit a Nernstain slope of (19.54±1.00) mv per decade of lanthanum Ions , the detection limit was ( 1.58 ˣ 10 –8 ) M . The response time was about (20) s and The Electrode can be used for 6 months at least; the electrode can be used in the PH range: (3 – 8) without a considerable divergence potential. By using Matched  potential  Methods ( MPM ) , The Proposed electrode show a very good selectivity towards  La 3 +  ion in  presence of some Transition , Heavy metal ions with the relationship Coefficient ( 0.999 ) ,  it was used to determine lanthanum ions in  potentiometric titration  of  lanthanum ion with  EDTA , and to determine lanthanum ions in  realistic environmental samples.

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Published

2022-08-03

How to Cite

1.
هاجر ناصر, علي حسن. Preparation of a Selective Electrode for Determination of Lanthanum ion (III) Using Carbon Paste Electrode . TUJ-BA [Internet]. 2022Aug.3 [cited 2024Nov.29];44(3):103-20. Available from: https://journal.tishreen.edu.sy/index.php/bassnc/article/view/13251

Issue

Vol. 44 No. 3 (2022): Tishreen University Journal of Research and Scientific Studies - Basic Sciences Series

Section

Master student researches

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