<> "The repository administrator has not yet configured an RDF license."^^ . <> . . . "STUDI EKSTRAKSI PADAT-CAIR PADA PENENTUAN LOGAM Cr, Cu, DAN Fe DALAM SAMPEL SEDIMEN SUNGAI DI SEKITAR CALON PLTN MURIA"^^ . "Solid-liquid extraction was done to determine the presence of Cr, Cu, and\r\nFe metals in river sediment samples collected from around PLTN Muria, a future\r\nnuclear power plant, i.e. Kancilan, Balong, Suru, Dombang, and Wareng rivers.\r\nExisting heavy metal in waterbody will be precipitated as sediment. Therefore,\r\nthis research was focused on river sediment analysis. The aims of this research\r\nwere to know the optimal extraction condition including the concentrations of HF\r\nand HNO3, and the extraction time; to know which heavy metal that can be\r\nextracted and measure their concentrations; to know the validity of research\r\nmethod used in optimal condition; and to know the ability of HF + HNO3 as\r\nsolvent in optimal condition compared with HNO3 4N + HCl 0,7N and HCl 0,5N\r\nas solvent.\r\nOptimation of extraction condition was conducted by using the variations\r\nof solvent concentration and extraction time. Solid-liquid extraction using bomb\r\ndigestion, Parr 4745 type. Quantitative analysis of heavy metal contained in\r\nsamples was performed using Atomic Absorption Spectroscopy (AAS). In the\r\nmeantime, analysis of functional groups was performed using Infrared\r\nSpectroscopy.\r\nInterpretation of infrared spectras showed that silanol and siloksan groups\r\nwere present in river sediment samples tested. The optimal condition included HF\r\nand HNO3 concentrations were 40% and 65%, respectively, and extraction time\r\nwas 5 hours. Cr, Cu, and Fe metals could be extracted from all samples in various\r\nconcentrations. The metals concentration for one of this research samples, which\r\nwas Kancilan river sediment sample, contained 156,832 ppm Cr metal, 55,149\r\nppm Cu metal, and 25440,000 ppm Fe metal. The method validation of Cr metal\r\nfor one of metals this research focus, showed that this research method has good\r\naccuracy rate as high as 99.492%. Good accuracy was reached when calibration\r\nstandard method was used with 3.897% in percentage, but not when addition\r\nstandard method was used, because the percentage was more than 5% (which is\r\n10.916%). Based on the metals concentration determination, HF 40% + HNO3\r\n65% was the best solvent for Cr and Fe metal extraction, meanwhile HNO3 4N +\r\nHCl 0,7N was the best solvent for Cu metal extraction"^^ . "2009-11-06" . . . . "UIN SUNAN KALIJAGA YOGYAKARTA"^^ . . . "FAKULTAS SAINS DAN TEKNOLOGI, UIN SUNAN KALIJAGA YOGYAKARTA"^^ . . . . . . . . . "NIM.: 04630044"^^ . "Malawati Riskiah"^^ . "NIM.: 04630044 Malawati Riskiah"^^ . . . . . . "STUDI EKSTRAKSI PADAT-CAIR PADA PENENTUAN LOGAM Cr, Cu, DAN Fe DALAM SAMPEL SEDIMEN SUNGAI DI SEKITAR CALON PLTN MURIA (Text)"^^ . . . . . "BAB-I_IV-atau-V_DAFTAR-PUSTAKA.pdf"^^ . . . "STUDI EKSTRAKSI PADAT-CAIR PADA PENENTUAN LOGAM Cr, Cu, DAN Fe DALAM SAMPEL SEDIMEN SUNGAI DI SEKITAR CALON PLTN MURIA (Text)"^^ . . . . . "STUDI EKSTRAKSI PADAT-CAIR PADA PENENTUAN LOGAM Cr, Cu, DAN Fe DALAM SAMPEL SEDIMEN SUNGAI DI SEKITAR CALON PLTN MURIA (Other)"^^ . . . . . . "STUDI EKSTRAKSI PADAT-CAIR PADA PENENTUAN LOGAM Cr, Cu, DAN Fe DALAM SAMPEL SEDIMEN SUNGAI DI SEKITAR CALON PLTN MURIA (Other)"^^ . . . . . . "STUDI EKSTRAKSI PADAT-CAIR PADA PENENTUAN LOGAM Cr, Cu, DAN Fe DALAM SAMPEL SEDIMEN SUNGAI DI SEKITAR CALON PLTN MURIA (Other)"^^ . . . . . . "STUDI EKSTRAKSI PADAT-CAIR PADA PENENTUAN LOGAM Cr, Cu, DAN Fe DALAM SAMPEL SEDIMEN SUNGAI DI SEKITAR CALON PLTN MURIA (Other)"^^ . . . . . . "STUDI EKSTRAKSI PADAT-CAIR PADA PENENTUAN LOGAM Cr, Cu, DAN Fe DALAM SAMPEL SEDIMEN SUNGAI DI SEKITAR CALON PLTN MURIA (Other)"^^ . . . . . . "lightbox.jpg"^^ . . . "STUDI EKSTRAKSI PADAT-CAIR PADA PENENTUAN LOGAM Cr, Cu, DAN Fe DALAM SAMPEL SEDIMEN SUNGAI DI SEKITAR CALON PLTN MURIA (Other)"^^ . . . . . . "preview.jpg"^^ . . . "STUDI EKSTRAKSI PADAT-CAIR PADA PENENTUAN LOGAM Cr, Cu, DAN Fe DALAM SAMPEL SEDIMEN SUNGAI DI SEKITAR CALON PLTN MURIA (Other)"^^ . . . . . . "medium.jpg"^^ . . . "STUDI EKSTRAKSI PADAT-CAIR PADA PENENTUAN LOGAM Cr, Cu, DAN Fe DALAM SAMPEL SEDIMEN SUNGAI DI SEKITAR CALON PLTN MURIA (Other)"^^ . . . . . . "small.jpg"^^ . . "HTML Summary of #68402 \n\nSTUDI EKSTRAKSI PADAT-CAIR PADA PENENTUAN LOGAM Cr, Cu, DAN Fe DALAM SAMPEL SEDIMEN SUNGAI DI SEKITAR CALON PLTN MURIA\n\n" . "text/html" . . . "540 Kimia" . .