Pembuatan Dan Studi Kinerja Elektroda Selektif Ion (ESI) Timbal (II) Bermembran Heterogen

Nugraha, Otong (2006) Pembuatan Dan Studi Kinerja Elektroda Selektif Ion (ESI) Timbal (II) Bermembran Heterogen. Masters thesis, Institut Teknologi Sepuluh November.

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Abstract

Telah dilakukan pembuatan dan studi kinerja elektroda selektif ion (ESI) timbal (II) bermembran heterogen. Membran jenis ini terdiri dari bahan aktif timbal sulfida, karbon dan lilin dalam perbandingan tertentu yang diperoleh dengan cara mencampurkan seluruh bahan lalu dipeletkan pada sisi aktif elektroda. Hasil penentuan faktor Nernst menunjukkan bahwa membran yang optimum dicapai pada perbandingan 45% timbal sulfida, 20% karbon dan 35% lilin. Pada kondisi tersebut elektroda selektif ion timbal (II) bermembran heterogen itu memiliki harga faktor Nernst sebesar 29,73 mV/dekade dengan trayek pengukuran 1×10⁻⁵ M - 1×10⁻¹ M, limit deteksi 1×10⁻⁵ M dan waktu respon 146 detik. Metoda yang digunakan untuk menentukan harga koefisien selektivitas memberikan hasil yang sesuai dimana ion Hg²⁺ dan ion Cu²⁺ yang dipelajari menunjukkan adanya pengaruh dan ion Ag⁺ tidak menunjukkan adanya pengaruh.
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Construction and characterization of a heterogeneous membrane of lead (II) ion selective electrode have been done. This type of membrane consists of active material lead sulfide, carbon and wax in a determined proportion which was prepared by mixing all materials and then continuously pelleted on side active of the electrode. Results of Nernst measurement indicated that the best membrane was obtained in a proportion of 45% lead sulfide, 20% carbon and 35% wax. In that conditions, the heterogeneous membrane lead (II) ion selective electrode showed Nernst of 29,73 mV/decade with measurement range of 1×10⁻⁵ M - 1×10⁻¹ M, limit detection of 1×10⁻⁵ M and response time of 146 seconds. The method used for determination of selectivity coefficient has a consistent value, in which ions Hg²⁺ and Cu²⁺ gave interference while no interference given by ion Ag⁺.

Item Type:	Thesis (Masters)
Additional Information:	RTKi 660.297 24 Nug p
Uncontrolled Keywords:	elektroda selektif ion timbal (II), timbal sulfida, membran heterogen, ion selective electrode for lead (II), lead sulfide, heterogenous membrane.
Subjects:	Q Science > QD Chemistry > QD553 Electrochemistry. Electrolysis
Divisions:	Faculty of Mathematics and Science > Chemistry > 47101-(S2) Master Thesis
Depositing User:	magang .
Date Deposited:	02 Oct 2026 07:13
Last Modified:	02 Oct 2026 07:13
URI:	http://repository.its.ac.id/id/eprint/145197

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