Komparasi Metode Spektrometri Tampak dengan Spektrometri Serapan Atom pada Penentuan Kadar Aluminium dalam Antasida

Mudji Triatmo Melkias Aloysius; Marzuki Nurmin; Rum Hastuti; Gunawan Gunawan

doi:10.14710/jksa.2.2.39-41

DOI: https://doi.org/10.14710/jksa.2.2.39-41

Komparasi Metode Spektrometri Tampak dengan Spektrometri Serapan Atom pada Penentuan Kadar Aluminium dalam Antasida

Mudji Triatmo Melkias Aloysius , Marzuki Nurmin, Rum Hastuti, Gunawan Gunawan

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

Published: 31 May 1999.

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Abstract

Telah dilakukan uji banding metode penentuan kadar aluminium secara spektrometri tampak dengan spektrometri serapan atom (SSA). Penentuan kadar aluminium secara SSA dilakukan dengan menganalisis larutan sampel secara langsung, sedangkan analisis secara spektrometri tampak dilakukan dengan perlakuan awal ekstraksi 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 daripada 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: Aluminium; spektrometri tampak; spektrometri serapan atom

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Section: Research Articles

Language : ID

In Vol 2, No 2 (1999): Volume 2 Issue 2 Year 1999

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