Perbandingan Penentuan Kadar Alumunium dalam Antasida Menggunakan Metode Spektrometri Tampak dengan Spektrometri Serapan Atom

Raharjo Raharjo

doi:10.14710/jksa.20.3.140-141

DOI: https://doi.org/10.14710/jksa.20.3.140-141

Perbandingan Penentuan Kadar Alumunium dalam Antasida Menggunakan Metode Spektrometri Tampak dengan Spektrometri Serapan Atom

Raharjo Raharjo

Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University, Indonesia

Published: 1 Oct 2017.

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Abstract

Telah dilakukan uji banding metode penentuan kadar alumunium secara spektrometri tampak dengan spektometri serapan atom (SSA). Penentuan kadar alumunium secara SSA dilakukan dengan menganalisis larutan sampel secara langsung, sedangkan analisis secara spektometri tampak dilakukan dengan perlakuan awal ekstrasi menggunakan pereaksi 8-hidroksikuinolin dalam kloroform. Absorbansi diukur dengan spektrometer ultra ungu – tampak pada panjang gelombang 408 nm. Hasil penelitian menunjukkan konsentrasi rata – rata secara SSA adalah 81,01 ± 0,95 ppm dan secara spektrometri tampak adalah 79,70 ± 1,64 ppm. Hasil uji t-student menyatakan bahwa t_eksperimen sebesar 0,86 lebih kecil dari pada t_tabel yang besarnya 2,31 untuk P = 95%. Hal ini dapat disimpulkan bahwa kedua metode tersebut tidak berbeda secara nyata.

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Keywords: Alumunium; spektrometri tampak; spektometri serapan atom

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Section: Research Articles

Language : ID

In Vol 20, No 3 (2017): Volume 20 Issue 3 Year 2017

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