10 articles in this issue
Endang Astuti,Sabirin Matsjeh,Winarto Haryadi,Deni Pranowo,Nuning Sri Mulatsih
The supernatant of Manihot esculenta Crantz rhizome has been used as an alternative remedy of infectious and cancer in Jogjakarta. Cytotoxicity assay showed that Manihot esculenta Crantz supernatant had cytotoxic effect to cancer cell line, namely M... see more
Ruslin Hadanu,Chairil Anwar,Jumina Jumina,Iqmal Tahir,Mustofa Mustofa
It has been conducted the synthesis of 3-(2-hydroxyethyl)-2-methyl-1,10-phenanthroline-4-ol was carried out from 8-aminoquinoline which are expected to posses antimalarial activity. The experiment perfomed consisted of two steps i.e (1) reaction of 8-amin... see more
Hilyati Hilyati,Wuryaningsih Wuryaningsih,M. Nasir,Tasrif Tasrif,T. Beuna
Synthesis of alkyl monoethanolamide from palm kernel oil was done by two steps reaction that are esterification and amidation. The esterification, that is the reaction between palm kernel oil and methanol with mole ratio of 1:3 using acid catalyst (H2SO4)... see more
Winarto Haryadi,M. Muchalal
The reaction of epoxide ring opening of caryophillene oxide has been done using zeolite H-Y, H-sodalit, and H-ZSM-5 as catalysts. The reactions were done in two types, there were in dioxane solvent at temperature of 110 oC and without solvent at temperatu... see more
M. Muchalal
The stereochemistry effect of eugenol, cis-isoeugenol and trans-isoeugenol on their catalytic hydrogenation by Ni/g-Al2O3 catalyst was investigated. In this investigation, the catalyst is prepared by impregnation of Nickel into solid of ?-Al2O3 in methano... see more
Cahyorini Kusumawardani
Ab initio molecular orbital calculations at the Hartree-Fock-Self Consistent Field (HF-SCF) have been performed in order to determine the structure and gas phase energies of complex formed by the Lewis bases of H2O, NH3, H2S and their methyl derivatives w... see more
Silvester Tursiloadi,Hiroshi Hirashima
Stable anatase is attractive to its notable functions for photo catalysis and photon-electron transfer. Stable anatase TiO2 containing amorphous SiO2 aerogel was prepared by hydrolysis of Ti (OC3H7)4 and Si (OC3H7)4 in a 2-propanol solution w... see more
Adhitasari Suratman,Buchari Buchari,Indra Noviandri,Suryo Gandasasmita
Electropolymerization processes and electrochemical properties of polypyrrole as electroactive polymer have been studied by cyclic voltammetric technique. Pyrrole was electropolymerized to form polypyrrole in water-based solvent containing sodium perchlor... see more
Nuryono Nuryono,Suyanta Suyanta
In this research, interaction occurring in adsorption process between Cd(II) and active site of diatomaceous earth has been studied. The study was carried out by evaluating Cd(II) adsorption on diatomaceous earth at various pHs, either for the earths with... see more
Dwi Retno Nurotul Wahidiyah,Bambang Setiaji,Iqmal Tahir
Application of activated zeolite (ZAA) as molecular sieve to separate compounds of coal tar from vaccum fractional distillation, have been done. The size of zeolite was 10-20 mesh and used as solid phase in column chromatography with length of 30 cm. The ... see more