STUDI KOPRESIPITASI Zn2+ MENGGUNAKAN Al(OH)3 SEBAGAI KOPRESIPITAN
DOI:
https://doi.org/10.31958/js.v5i1.83Abstract
Research of study copresipitation Zn2+┬áusing Al(OH)3┬áas coprecipitant has been done. This study aims to determine the optimum conditions for coprecipitation of Zn2+┬áby Al(OH)3, and influence of foreign ions. This study uses variation pH about 5,0 ÔÇô 10,0; ┬ávariation of eluent volume about 8,0 ÔÇô 14,0; variation of concentrated HNO3┬ávolume about 1,0 ÔÇô 5,0; and variation of concentration Cu2+┬áabout 0,8; 1,2; 1,6; 2,0 and 2,4. Measurement concentration of Zn2+┬áusing Atomic Absorption Spectroscopy (AAS) with wavelength of 213,9 nm. The result showed the optimum conditions occur at pH about 8, 12 mL of eluent and 1 mL of concentrated HNO3┬áwith the absorption capacity of 0,074 mg/g. Meanwhile, the presence of foreign ions such as Cu2+┬áhas influenced the coprecipitated Zn where concentration of the coprecipitated Zn decreased with increasing the concentration of foreign ions.
Keywords: coprecipitation, coprecipitant Al(OH)3, trace metal,  Zn, AAS
 References
Anton H. 1998. Aljabar Linier Elementer, edisi kelima. Jakarta: Erlangga.
Anderson,1996, Manajemen Sains Pendekatan Kuantitatif untuk Pengambilan Ke-putusan Manajemen, edisi ketujuh. Ja-karta: Erlangga.
Dimyati T dan Tarliah A. 1992. Operations Reaserch Model model Pengambilan Ke-putusan,edisi keempat. Bandung: Sinar Baru.
Hillier FS, Lieberman dan Gerald J. 1995. Introduction to Operations Reaserch, edisi ketujuh. University State of Ame-rican.
Mulyani, Sri. 1998. Operasi Riset. Fakultas Ekonomi Universitas Indonesia, Jakarta.
Nola N. 1996. Penyelesaian Masalah Anggaran Biaya Dinas Prasarana Jalan Propinsi Sumatera Barat tahun 2005 dengan Menggunakan Metode Branch And Bound. (Tugas Akhir tidak diterbitkan, UNP. Padang).
Ravindra A, Don TP and James JS. 1987. Operations Reaserch Principles And Practice. Willey, Singapura.
Supranto JMA. 1983. Linear Programing. Jakarta: Fakultas Ekonomi Universitas Indonesia.
Taha HA. 1996. Riset Operasi Suatu Pe-ngantar, (alih bahasa : Drs Danirl Wira-ya) edisi kelima. Jakarta: Bina Pura.
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