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All Journal JURNAL KIMIA SAINS DAN APLIKASI
Dewi Umaningrum
Department of Chemistry, Faculty of Mathematics and Natural Science, Lambung Mangkurat University, Banjarbaru|Lambung Mangkurat University|Indonesia Laboratory of Instrumentation Chemistry, Faculty of Mathematics and Natural Science, Lambung Mangkura
Chemical Engineering, Chemistry & Bioengineering Chemistry Engineering

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The Coated-Wire Ion-Selective Electrode (CWISE) of Tartrazine Using Chitosan as an Ionophore Dewi Umaningrum; Radna Nurmasari; Siti Hasnah; Maria Dewi Astuti; Kiki Amalia Wardhani; Shofia Qalby
Jurnal Kimia Sains dan Aplikasi Vol 24, No 6 (2021): Volume 24 Issue 6 Year 2021
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2762.264 KB) | DOI: 10.14710/jksa.24.6.206-212

Abstract

Research on the Ion-Selective Electrode (ISE) of coated wire-type tartrazine using chitosan as an ionophore has been developed. The variables used in the manufacture of ISE are membrane composition and immersion time. Meanwhile, the basic characteristics of ISE measured are Nernst value, measurement concentration range, detection limit, and measurement response time. The results showed that ISE tartrazine coated wire type had an optimum membrane composition in a mixture of chitosan: PVC: DOP of 3: 34: 63 (% w/w) and a membrane immersion time 20 minutes. The basic characteristics of ISE produce a Nernst value of 20.976 mV/decade. The measurement concentration range is 1×10-7-1×10-2 M with a detection limit of 2.749×10-7 M or 0.1469 ppm. The response time ranges from 10-60 seconds, with an average of 40 seconds.
Co-Authors Kiki Amalia Wardhani Maria Dewi Astuti Radna Nurmasari Shofia Qalby Siti Hasnah