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Maming Maming
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Chemistry

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Desain Elektroda Selektif Ion Untuk Logam Timbal (II) (ESI-Pb (II)) Menggunakan Ionofor p-t-Butilkaliks [4] Arena Awaluddin IP; Abd. Wahid Wahab; Maming Maming
Al-Kimia Vol 3 No 1 (2015): June
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1097.024 KB) | DOI: 10.24252/al-kimia.v3i1.1658

Abstract

This study aims to determine the design pattern ESI-Pb (II) with ionophores pt-butilkaliks [4] arena. In this study, ion selective electrode is designed for the determination of lead (II) (ESI-Pb (II)) using ionophores pt-butilkaliks [4] arenas and diimmobilasi on a matrix of polyvinyl chloride (PVC) in the membrane ESI-Pb (II). The results showed a design pattern ESI-Pb (II) with ionophores pt-butilKaliks [4] arena is best to ESI with membrane composition (% by weight), namely: (pt-butilKaliks [4] arena: KTCPB: DOS: PVC) is 3 : 2: 60: 35 with the Nernst factor: 27.61 mV / decade
Sintesis Heksa-p-tert-Butilheksaesterkaliks[6]Arena dari p-tert-Butilkaliks[6]Arena Nasriadi Dali; Abd. Wahid Wahab; Firdaus Firdaus; Maming Maming
Al-Kimia Vol 3 No 1 (2015): June
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (281.38 KB) | DOI: 10.24252/al-kimia.v3i1.1665

Abstract

A research has been done to synthesize hexa-p-tert-butylhexaestercalix[6]arene using p-tert-butylcalix[6]arene as a starting material. The synthesis was carried out by esterifying p-tert-butylcalix[6]arene. Synthesis products were identified and characterized by melting point, TLC, FTIR, 1H-NMR, and 13C-NMR spectrometers. Synthesis products was obtained a white solid powder (68.45% recovery), melting point 349-351 °C, TLC (SiO2, ethanol: ethyl acetate = 1: 1 v/v, Rf = 0.90). The results of the analysis  of synthesis products with FTIR, 1H-NMR, and  13C-NMR spectrometer showed that the synthesis products compound is 5, 11, 17, 23, 29, 35-hexakis (p-tert-butyl)-37, 38, 39, 40, 41, 42-hexakis (ethoxy-carbonylmethoxy) calix[6]arene.
Co-Authors Abd. Wahid Wahab Awaluddin IP Firdaus Firdaus Nasriadi Dali