22 articles in this issue
Yudi Wicaksono,Dwi Setyawan,Siswandono Siswandono
The purpose of this work was to explore the formation of ketoprofen-malonic acid cocrystal by solvent evaporation method. Early detection of cocrystal formation was conducted by hot stage microscopy and solid-liquid phase diagram. Cocrystal were prepared ... see more
Tri Joko Raharjo,Ery Nourika Alfiraza,Esti Enjelina,Deni Pranowo
Porcine adulteration in meatball samples were analyzed using real-time polymerase chain reaction (RT-PCR), based on the ND5 primer obtained by previous study. This work consisted of three stages which were annealing temperature optimization, method valida... see more
Sunardi Sunardi,Darsono Darsono
A performance test has been conducted of k0-NAA and relative methods for analysis of Al, Mg, K nuclides in SRM lake sediment sample (SRM SL-3). The performance test included validation, accuracy and precision tests, as well as t and F test. This test is d... see more
Mohammad Basyuni,Nofrizal Amri,Lollie Agustina Pancawaraswati Putri,Indra Syahputra,Deni Arifiyanto
This study examines the fresh fruit bunch (FFB) yield and the effect of fruit storage on the quality of palm oil in Bangun Bandar Estate, Dolok Masihul, North Sumatra, with special reference to the physicochemical parameters. The quality of palm oil is mo... see more
Hendrik Oktendy Lintang,Nur Fatiha Ghazalli,Leny Yuliati
We highlight that by using supramolecular single crystals of phosphorescent trinuclear copper(I) pyrazolate complexes with different molecular structures (2A-E), vapochromic chemosensors were successfully designed for sensing ethanol with high sensing cap... see more
Endah Retnaningrum,Wahyu Wilopo
The present research was conducted to investigate sulphate and manganese removal from synthetic wastewater. The continuous laboratory scale of down-flow fluidized-bed reactor (DFBR) using sulphate reducing bacteria (SRB) consortium and Indonesian natural ... see more
Luma Ahmed Mohammed Ali,Ahmed Saleh Farhood,Firas Fadhel Ali
This study proposes an easy and cheap technique to get rid of dangerous Malachite Green (MG) dye from waste material by victimization carbon from walnut shells. The simple treatment was carried out by heating at temperature in which was set to the best ca... see more
Misriyani Misriyani,Abdul Wahid Wahab,Paulina Taba,Jarnuzi Gunlazuardi
A study on the influence of anodizing time, annealing temperature and photoelectrochemical properties of TiO2 nanotube (TiO2 NT) has been investigated. The crystallinity was investigated using X-Ray Diffraction and the anti-corrosion performance of stainl... see more
Agus Taftazani,Roto Roto,Novitasari Restu Ananda,Sri Murniasih
Heavy metals in the samples of coals and combustion residues (bottom ash and fly ash) from Pacitan coal-fired power plant (CPP) have been identified by using NAA, XRF, and ICP-OES methods. This research was aimed to understand the analysis results correla... see more
Agustina Eka Prestiani,Bambang Purwono
A novel styrene (1) and azo-styrene (2) based chemosensor from vanillin has been successfully synthesized. Sensor 1 was obtained by one step Knoevenagel condensation of Ultrasound method and sensor 2 by coupling diazo and Knoevenagel condensation reaction... see more
Amal Saadoon Majeed,Ahmed Saleh Farhood,Luma Ahmed Mohammed Ali,Dakhil Nassir Taha
The research is included studying and designing micro flow injection system which is characterized with rapidity, simplicity, and low cost for the determination of green malachite dye. The study of flow rate of carrier stream, repeatability, dispersion co... see more
Amaria Amaria,Suyanta Suyanta,Nuryono Nuryono
In this research, magnetite coated with L-arginine modified silica (Fe3O4/SiO2-GPTMS-Arg) has been synthesized through a sol-gel process at a room temperature in two Routes. In Route 1, a precursor of sodium silicate solution (source of SiO2), 3-glycidoxy... see more
Muflikhah Muflikhah,Bambang Rusdiarso,Edy Giri Rachman Putra,Nuryono Nuryono
Modification of silica coated on magnetic material iron sand with chitosan for adsorption of Au(III) has been carried out. Magnetic material (MM) from iron sand was separated using an external magnet, washed with water and HF solution 10%. MM–silica–chito... see more
Soerja Koesnarpadi,Sri Juari Santosa,Dwi Siswanta,Bambang Rusdiarso
The coating Fe3O4 using humic acid (HA) to form HA-coated Fe3O4 (Fe3O4/HA) was conducted and applied for phenol sorption. Fe3O4/HA was prepared using co-precipitation method in an alkaline condition using ammonium hydroxide and the addition of HA with mas... see more
Leny Yuliati,Nur Azmina Roslan,Wai Ruu Siah,Hendrik Oktendy Lintang
2,4-dichlorophenoxyacetic acid (2,4-D) has been recognized as a possibly carcinogenic compound to human, therefore, 2,4-D should be treated before it is discharged to the environment. Photocatalytic degradation of 2,4-D has been proposed as one of the bes... see more
Parsaoran Siahaan,Nadira Cahyaning Mentari,Ustera Octovindra Wiedyanto,Dwi Hudiyanti,Suci Zulaikha Hildayani,Marlyn Dian Laksitorini
In this paper, carboxymethyl chitosan (CMC) was synthesized and studied as a carrier to encapsulate vitamin (as drug model) and controlled release. Chitosan (CS) is a polycationic derivated from chitin, which suitable for active substance carrier system o... see more
Yehezkiel Steven Kurniawan,Yudha Ramanda,Kevin Thomas,Hendra Hendra,Tutik Dwi Wahyuningsih
Two 1,4-dioxaspiro novel compounds which derivated from methyl 9,10-dihydroxyoctadecanoate (MDHO) with cyclopentanone and cyclohexanone had been synthesized by a sonochemical method in the presence of montmorillonite KSF catalyst. The MDHO compound had be... see more
Nurhayati Nurhayati,Sofia Anita,Tengku Ariful Amri,Amilia Linggawati
In this study biodiesel was produced from crude palm oil through two-step processes, namely esterification reactions using homogeneous H2SO4 catalyst and transesterification using the heterogeneous base CaO catalyst derived from Anadara granosa shell. Sev... see more
Hendro Juwono,Triyono Triyono,Sutarno Sutarno,Endang Tri Wahyuni,Ita Ulfin,Fredy Kurniawan
Production of biodiesel from crude nyamplung oil (Calophyllum inophyllum) have been done by transesterification using Al-MCM-41 catalyst. Al-MCM-41 catalyst was obtained from impregnation of MCM-41 by Al. Sodium aluminate was added to MCM-41 until pH 11.5... see more
Enade Perdana Istyastono
Structure-Based Virtual Screening (SBVS) campaigns employing Protein-Ligand Interaction Fingerprints (PLIF) identification have served as a powerful strategy in fragments and ligands identification, both retro- and prospectively. Most of the SBVS campaign... see more
Abdullah Hussein Kshash,Mohammed Ghannam Mokhlef
This work presents four Schiff bases derived from 4,4'-Oxydianiline, distinguished by the para substituted halogen of benzaldehyde. These bases were used to synthesize eight compounds of di-1,3-oxazepine by direct condensation with tetrachloro phthalic an... see more
Sri Handayani,Cornelia Budimarwanti,Winarto Haryadi
The synthesis of dibenzylidenecyclohexanone derivatives via environmentally friendly Microwave Assisted Organic Synthesis (MAOS) crossed aldol condensation had been carried out. The condensation reaction to synthesize the dibenzylidenecyclohexanone 8b was... see more