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Amrin .
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Materials Science & Nanotechnology

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Analisis Kandungan Mangan (Mn) dan Tembaga (Cu) dalam Bijih Mangan di Daerah Taming Tonga Kecamatan Ranah Batahan Kabupaten Pasaman Barat Secara Spektrofotometri Serapan Atom Widya Pasema; Amrin .; Edi Nasra
Jurnal Periodic Jurusan Kimia UNP Vol 1, No 1 (2012)
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (219.501 KB) | DOI: 10.24036/p.v1i1.571

Abstract

A research on the analysis of Manganese and copper content in the manganese ore in the area Taming Tonga artifacts using atomic absorption spectrophotometry had been done. This study aims to determine the content of manganese (Mn) and copper (Cu) with variation of solvent, particle size variations, and solvent volume variations in atomic absorption spectrophotometry. This study uses a wet method of destruction, the destruction process is done with some variation of the solvent variation: concentrated HCl, concentrated HNO3 and HCl-HNO­3 concentrated (3:1), variations in particle size is ≤ 63 μm,> 63 - ≤ 75 μm, and> 75 - ≤ 90 μm and variations in volume 20 mL, 25 mL, 30 mL, 35 mL, 40 mL. The results of this study showed the highest manganese content in the samples obtained by using Aquaregia 30 mL that is 57 % with particle size ≤ 63 μm while the highest levels of copper in samples obtained by using a solvent which is 1,89 % HCl 25 mL with particle size ≤ 63 μm best.
Analisis Besi (Fe) dan Aluminium (Al) dalam Tanah Lempung di Daerah Kabupaten Tanah Datar Secara Spektrofotometri Serapan Atom Dita Ardilla; Amrin .; Bahrizal Rizal
Jurnal Periodic Jurusan Kimia UNP Vol 1, No 1 (2012)
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (210.968 KB) | DOI: 10.24036/p.v1i1.547

Abstract

Telah dilakukan penelitian tentang analisis besi dan aluminium dalam tanah lempung yang terdapat di daerah Kabupaten Tanah Datar secara spektrofotometri serapan atom. Penelitian ini bertujuan untuk menentukan kandungan besi (Fe) dan aluminium (Al) dengan jenis pelarut, ukuran partikel dan volume pelarut terbaik secara spektrofotometri serapan atom. Penelitian ini menggunakan metoda destruksi basah, dimana proses pendestruksian dilakukan dengan beberapa variasi yaitu variasi pelarut: HCl pekat, HNO3 pekat, dan HCl-HNO3 pekat (3:1), variasi ukuran partikel yaitu ≤ 63 µm, > 63 - ≤ 75 µm, dan > 75 - ≤ 90 µm serta variasi volume pelarut 25 mL, 30 mL, 35 mL, 40 mL, 45 mL. Hasil penelitian menunjukkan kadar besi terbesar didapatkan dengan menggunakan 30 mL pelarut HCl-HNO3 pekat (3:1) yaitu 4,504% dengan ukuran partikel ≤ 63 µm sedangkan kadar aluminium terbesar didapatkan dengan menggunakan 40 mL pelarut HCl-HNO3 pekat (3:1) yaitu 16,715% dengan ukuran partikel terbaik ≤ 63 µm.
Co-Authors Bahrizal Rizal Dita Ardilla Edi Nasra Widya Pasema