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All Journal Molekul: Jurnal Ilmiah Kimia
Dian Windy Dwiasi
Program Studi Kimia, Jurusan MIPA Fakultas Sains dan Teknik, Universitas Jenderal Soedirman, Purwokerto
Chemical Engineering, Chemistry & Bioengineering Chemistry

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SPESIASI Cr(III) DAN Cr(VI) PADA LIMBAH CAIR INDUSTRI ELEKTROPLATING Dian Windy Dwiasi; Dwi Kartika
Molekul Vol 3, No 2 (2008)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (139.676 KB) | DOI: 10.20884/1.jm.2008.3.2.52

Abstract

Speciation of Cr(III) and Cr(VI) in wastewater have been widely investigated. The species of Cr(III) and Cr(VI) in wastewater samples were determined by UV – Vis Spectrometry and Atomic Absorption Spectrometry (AAS). The method described is based upon the spectrophotometric determination of the magenta chromagen (λmax = 545 nm) formed when 1,5-diphenylcarbazide reacts with hexavalent chromium in sulphuric acid solution. Hexavalent chromium are determined by a calibration curve technique. The result showed that Cr(VI) concentration are still on the government regulation (Menteri Negara Kependudukan dan Lingkungan Hidup No. 03/MENKLH/II/1991).
Co-Authors Dwi Kartika