Browsing Chemistry by Author "Rohaeti, Eti"
Now showing items 1-9 of 9
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Developing of Solid Phase Extraction Based on Zeolites : Case Studied Cr(VI)
Rohaeti, Eti | Soebrata, Betty Marita | Furi, Putri Ratna | Batubara, Irmanida (2013)Chromium especially hexavalent chromium is hazardous /0 aliI' health. becallse il is carcinogenic. Therefore, chromium in drinking Imter should be minimized /0 less Ih(/n 50 fig. L One way to decrease chromium contenl is ... -
Development of Ganoderma lcuidum on Soft and Hard Wood Logs and Determination of Organic Germanium and Ganoderic Acid Content of the Fruiting Body Produced
Sukarno, Nampiah | Aini, Al-Azhariati | Sumarna, Vivi | Rohaeti, Eti | Darusman, Latifah Kosim (2013)The ohjectives of this experiment were to stud~ the growth and development of fruiting hod~' of the two Ga1l0derllla Illcidlllll isolates on log of the soft wood Parl/serial/tltes fa/cataria and the hard wood S/wrea sp., ... -
Fraksinasi fosforus pada sedimen di bagian litoral Danau Matano, Sulawesi Selatan
Nomosatryo, Sulung | Henny, Cinthya | Rohaeti, Eti | Batubara, Irmanida (2013-04-23)Senyawaan Fosforus di sedimen dapat berperan sebagai pemasok internal terhadap badan air danau itu sendiri. Salah satu analisis untuk mengetahui bentuk senyawa fosforus yang akan terlepas atau tetap terikat yaitu dengan ... -
KESEIMBANGAN PENJERAPAN FOSFAT ANTAR MUKA AIRSEDIMEN: STUDI KASUS DANAU MATANO
Nomosatryo, Sulung | Henny, Cynthia | Rohaeti, Eti | Batubara, Irmanida (2016) -
Pembuatan dan Karakterisasi Solvent Impregnated Resin (SIR) Mengandung Ditizon Terimpregnasi pada Amberlite XAD-16
Saprudin, Deden | Rohaeti, Eti | Putra, Budi Riza (2013-07-18)Dengan teknik impregnasi basah, Solvent Impregnated Resin (SIR) yan~ mengandung ditizon terimpregnasi pada Amberllte XAD-16 sebagai ekstraktan ion Pb + telah berhasil dibuat. SIR dibuat dalam 3 konsentrasi, yaitu (Al 0,1250; ... -
Potensi Ekstrak Rhizophora sp. sebagai Inhibitor Tirosinase
Rohaeti, Eti | Batubara, Irmanida | Lieke LDN, Anastasia | Darusman, Latifah Kosim (2013-03-28)Previous research showed that Rhizophora sp. was plant which has tyrosinase inhibitor activity. The purpose of this study is to find the parts and species of Rhizophora sp. which has the best tyrosinase inhibitory activity. ... -
Prediksi kadar flavonoid total tempuyung (Sonchus arvensis L.) menggunakan kombinasi spektroskopi ir dengan regresi kuadrat terkecil parsial
Rohaeti, Eti (2013-03-28)Potensi dari spektroskopi inframerah tertransformasi Fourier (FfIR) yang dikombinasikan dengan metode kemometrik dalam menentukan kandungao flavonoid total dari tempuyung (Sonchus arvensis L) telah dilakukan. Regresi kuadrat ... -
Production of semiconductor materials silicon from silica rice husk waste as alternative silicon sources
Rohaeti, Eti | Hikmawati | Irzaman (2013-03-28)Rice is one of the most important culti\'ated plants in human civilization. Rice production ranks third in the world of all cerealia after maize and wheal. According to Central Agency Statistics of Indonesia. production ... -
Rapid Analysis of Total Flavonoids from Medicinal Herb : Interpretation of Chemometrics on Infrared Spectra of Phyllantus Niruri
Rohaeti, Eti | Heryanto, Rudi | Rafi, Mohamad | Darusman, Latifah Kosim | Kurniasari, Indah (2013-03-28)The potential of mid-infrared (FTIR) spectroscopy for the determination of secondary metabolites (total flavonoids) in Phyllantus niruri herb was investigated. The study are applying chemometrics technique (i.e. partial ...