Unesa Journal of Chemistry
Vol 5, No 2 (2016): Volume 5, Nomer 2, 2016

PEMBUATAN ELEKTRODA PASTA KARBON TERMODIFIKASI BENTONIT UNTUK ANALISIS NI(II) PADA KERANG DARAH (ANADARA GRANOSA) SECARA VOLTAMETRI SIKLIK (THE MAKING CARBON PASTE ELECTRODE MODIFIED BENTONITE FOR MEASURINGNI(II) ON COCKLE (ANADARA GRANOSA)BY CYCLIC VOLTAMMETRY)

NURIL HABIBAH, ZAMRUD (Unknown)



Article Info

Publish Date
01 Jan 1970

Abstract

Abstrak. Penelitian ini bertujuan untuk mengetahui komposisi elektroda pasta karbon termodifikasi bentonit terbaik, mengetahui pH optimum untukanalisis Ni(II), mengetahui konsentrasi Ni(II) pada daging kerang darahsecara voltametri siklik dan AAS. Elektroda dibuat dari campuran karbon:paraffin:bentonitdengan perbandingan komposisi sebesar 4:1:5, 4:2:4, 4:3:3, dan 4:4:2 dan variasi pH 3, 4, 5 dan 6. Hasil penelitian menunjukkan bahwa elektroda terbaik adalah elektoda pasta karbon termodifikasi bentonit teraktivasi prbandingan komposisi 4:2:4 dengan arus puncak -0,000486 A dan pH optimum adalah pH 6. Konsentrasi Ni(II) pada daging kerang darah secara voltametri siklik pada pengambilan bulan april dan juli rerata 0,50 ppm dan 2,22 ppm sedangkan secara AAS rerata 1,03 ppm dan 2,44 ppm. Kata kunci :voltametri siklik, elektroda, bentonit, Ni(II)   Abstract. The research aims to determine the best composition of carbon paste electrode modified bentonite, knowing the optimum pH analysis, and determine the concentration of Ni(II)  in cockle with voltammetry cyclic method and AAS. Carbon paste electrode maked from carbon:paraffin:bentonite of 4:1:5, 4:2:4. 4:3:3 and 4:4:2 with variation of pH 3, 4, 5 and 6. The result show that the best electrode composition indicated by the carbon composition: paraffin: bentonite activated with a ratio of 4:2:4 with cathodic peak current of -0.000486 and pH optimum for measuring Ni(II) in pH 5. Ni(II) concentrations in cockle by cyclic voltammetry at April is 0.50 ppm and July is 2.22 ppm, while Ni(II) concentration in cockle by AAS method at April is 1.03 ppm and July is 2.44 ppm. Key words :cyclic voltametry, electrode, bentonite, nickel(II)

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Journal Info

Abbrev

unesa-journal-of-chemistry

Publisher

Subject

Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry

Description

UNESA Journal of Chemistry is published online by the Department of Chemistry, Faculty of Mathematics and Natural Sciences, Surabaya State University, located at Jl Ketintang, Surabaya, East Java, Indonesia. 60231. Published 3 times a year (January, May and September) Aims and Scope: UNESA Journal ...