PEMBUATAN DAN KARAKTERISASI ELEKTRODA SELEKTIF ION La3+ TIPE KAWAT TERLAPIS DENGAN IONOFOR KALIKS[4]ARENA

HAMDAN ZUNAIDIE, 080942008 (2011) PEMBUATAN DAN KARAKTERISASI ELEKTRODA SELEKTIF ION La3+ TIPE KAWAT TERLAPIS DENGAN IONOFOR KALIKS[4]ARENA. Thesis thesis, UNIVERSITAS AIRLANGGA.

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Abstract

Potentiometry with a coated wire ion selective electrode (ISE) was developed as alternative method to Lanthanum. This electrode is made from a wire of electronic conductor that is coated by membrane. A coated wire ion selective electrode has simple shape, easier to prepare and cheaper because use silver wire as electronic conductor. This electrode is made from active material, i.e 5 mg ionofor calyx[4]arene, 90 mg plasticizer 2-nitrophenyl octyl ether (NPOE), 45 mg polyvinyl cloride (PVC) and tetrahydrofuran (THF) as solvent in Ag coat. Potential measurement uses Ag/AgCl as reference electrodes. Optimum condition of measurement in pH 4-7, Characterization of ISE-La3+ are 20,19 Nernst factor, measurement range 10-6 – 10-1 M, detection limit 6,31x10-7 M, presition 0,65% - 1,61% and accuracy for 10-5, 10-3 and 10-1 are 100,57%, 106,84% and 109,55%. This electrode has good selectivity to La3+. Potential measurement is not influenced by alkaline ions (K+, Na+), earth alkaline ions (Ca2+, Mg2+) and internal transition ions (Cu2+, Pb2+). On the other hand, the external transition ions (Ce3+) relatively affect potential measurement.

Item Type: Thesis (Thesis)
Additional Information: KKC KK TK 11 / 11 Zun p
Uncontrolled Keywords: coated wire ISE, calyx[4]arena, lanthanum
Subjects: Q Science > QD Chemistry > QD241-441 Organic chemistry
Q Science > QD Chemistry > QD450-801 Physical and theoretical chemistry
Divisions: 08. Fakultas Sains dan Teknologi > Program Studi Kimia (S2)
Creators:
CreatorsNIM/NIDN
HAMDAN ZUNAIDIE, 080942008UNSPECIFIED
Contributors:
ContributionNameNIDN/NIDK/NUP
ContributorMuji Harsini, Drs.,M.SiUNSPECIFIED
ContributorHamami, Drs.,M.SiUNSPECIFIED
Depositing User: Nn Anisa Septiyo Ningtias
Date Deposited: 30 Jun 2016 04:11
Last Modified: 30 Jun 2016 04:11
URI: http://repository.unair.ac.id/id/eprint/38151
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