Open AccessSPESIASI Cr(III) DAN Cr(VI) PADA LIMBAH CAIR INDUSTRI ELEKTROPLATING
Author(s) -
Dian Windy Dwiasi,
Dewi Kartika
Publication year - 2008
Publication title -
molekul
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.125
H-Index - 2
eISSN - 2503-0310
pISSN - 1907-9761
DOI - 10.20884/1.jm.2008.3.2.52
Subject(s) - hexavalent chromium , chromium , wastewater , chemistry , nuclear chemistry , atomic absorption spectroscopy , calibration curve , detection limit , chromatography , environmental science , environmental engineering , physics , organic chemistry , quantum mechanics
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).