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All Journal Cakrawala Pendidikan Jurnal Kependidikan: Penelitian Inovasi Pembelajaran JPMS (Jurnal Pendidikan Matematika dan Sains) JOURNAL OF EDUCATION Jurnal Penelitian Saintek Jurnal Inovasi Pembelajaran Kimia (Journal Of Innovation in Chemistry Education) Hydrogen: Jurnal Kependidikan Kimia Jurnal Elemen Kimia Jurnal Riset Pembelajaran Kimia
Rr. Lis Permana Sari
Universitas Negeri Yogyakarta
Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Education Mathematics Social Sciences

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Journal : Jurnal Penelitian Saintek

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LANTANUM COMPLEXASI STUDY WITH MAKROSIKLIS COMPOUND AND CHARACTERIZATION AS SELECTIVE ELECTRONIC ION LANTANUM Suyanta Suyanta; Sunarto Sunarto; Lis Permana Sari
Jurnal Penelitian Saintek Vol 16, No 2: Oktober 2011
Publisher : Institute of Research and Community Services, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (525.497 KB) | DOI: 10.21831/jps.v16i2.3389

Abstract

The aim of this research are (1) to study the complexation constant of La(III) ion by N,N’-dikarboksimetildiaza-18-crown-6 ligant with difference concentration of KNO3, and (2) to study the lanthanum (III) ion selective electrode (La-ISE) potential response which follows the Nernst equation. The characters of the electrode studied are: response time, life time, detection limit, dynamic range and selectivity. The complexation constant of La(III) ion by N,N’- dikarboksimetildiaza-18-crown-6 ligant are finded by potentiometry titration with 0.0005 M, 0.001 M, dan 0.005 M KNO3 supported electrolite. The titration are doing by 0.00794 M KOH until pH 7. The result of constant complexation (Kf) La(III) ion with N,N’-dikarboksimetildiaza-18-crown-6 difference KNO3 0.005 M, 0.001 M, dan 0.005 M simultaniuesly are 101,02 , 101,12, dan 101,32. The electrode had a response time of 27.14 ± 4.79 seconds and could be used for 50 days. The linear range was between 10-5 M to 10-1 M and the detection limit is 3.92x10-6 M.
Co-Authors Aini, Habibah Nur Andri Yuliyani Antuni Wiyarsi Aseri Kusumawati Astuti Astuti Atifah, Alya Aziza, Azzahra Nur Efi Wijayanti Erfan Priyambodo Novikadila, Ajeng Salsabila, Elfina Setyawati, Erlita Nur Slamet Reza Nasrullah Sukisman Purtadi Sunarto Sunarto Suyanta Suyanta Togu Gultom Ulfa Asrifatun Winarta Rizqi Putra Winarta Rizqi Putra