Journal Description

KOVALEN: Jurnal Riset Kimia is a peer-reviewed journal of chemistry that published by the Chemistry Department, Tadulako University, Indonesia. This journal is concerned with publishing original research articles, review articles, and current issues related to chemistry. Publishing frequency 3 issues per year, in April, August, and December. KOVALEN has been established since 2015 with volume 1 no 1 (December 2015) and has been accredited by DIKTI in the SINTA 4 category (No. 164/ E/ KPT/2021).


ISSN: 2477-5398 (electronic)


The Scope of this journal includes:
1. Theoretical and environmental chemistry study
2. Material and biomaterial synthesis, including their application 
3. Isolation, purification, and modification of the natural product
4. Development and validation of analytical methods
5. Isolation and application of enzyme

Announcement

Starting from Volume 11, Number 1, Edition of April 2025, KOVALEN will publish all articles in English. Manuscripts submitted after November 1, 2024, must be in English.
Please refer to the Kovalen template (English version) at the link:
https://bestjournal.untad.ac.id/index.php/kovalen/about/submissions

Editor-in-chief
Ir. Pasjan Satrimafitrah, S.Si., M.Si., PhD.

Posted: Wednesday, October 16, 2024

Vol. 10 No. 2 (2024): August Edition

Published: Aug 31, 2024

Optimalisasi Limbah Serbuk Gergaji Kayu Jati (Tectona grandis L.f) Sebagai Adsorben Logam Berat Kobalt (Co) dengan Metode Aktivasi Kimia

Optimization of Teak Wood Sawdust Waste (Tectona grandis L.f) as Heavy Metal Adsorbent of Cobalt (Co) by Chemical Activation Method

85-94 Faradin Faradin, Asti Muharti, Nazwa Jinanti Dinafa, Holisha Widiyanto
Read Statistic: 179

Evaluation of Counter Current Horizontal Screw Extractor’s Performance in Determining Leaching Equilibrium of Clitoria ternatea Anthocyanins

95-103 Laily Isna Ramadhani, Irwan Hidayatulloh, Nurcahyo, Dhyna Analyes Trirahayu
Read Statistic: 58

Sintesis dan Karakterisasi Zeolit X dari Fly Ash Batu Bara Menggunakan Metode Sintesis pada Suhu Rendah

Synthesis and Characterization of Zeolite X From Fly Ash Waste Using Synthesis Method at Low Temperature

104-113 Yuried Rieswana, Aurela Naura Aisyah, Sani, Suprihatin
Read Statistic: 128

Modifikasi Biofoam Berbasis Pati Singkong dengan Serat Eceng Gondok dan Variasi Konsentrasi Plasticizer

Modification of Cassava Starch-Based Biofoam with Water Hyacinth Fiber and Concentration Variation of Plasticizer

114-125 Sarawinda Hutagalung, James Sibarani, Resia Yoan Pramesti , Theresia Hellen Renata Puspaningtya
Read Statistic: 252

Adsorpsi Logam Cu(II) dengan Hidrogel CMC/Pektin Komposisi 2:1 Menggunakan Metode Freeze-Thaw

Adsorption of Cu(II) Metal by Hydrogel CMC/Pectin Composition of 2:1 Using The Freeze-Thaw Method

126-134 Nabila Maharani Maelan, Nurazizah Melani Dewi, Sri Andini, Meka Saima Perdani, Aulia Wahyuningtyas
Read Statistic: 132

Uji Aktivitas Antioksidan dan Kandungan Fitokimia Daun Benalu (Loranthus ferrugineus Roxb.) yang Tumbuh pada Ketinggian Tempat dan Inang Berbeda

Activity Antioxidant Test and Phytochemical Content of Mistletoe Leaves (Loranthus ferrugineus Roxb.) Growing at Different Altitudes and Host Types

135-146 Seswita Iwit, Ardi, Auzar Syarif
Read Statistic: 185

Biosintesis Nanopartikel ZnO dengan Ekstrak Temu Kunci (Boesenbergia rotunda) Dibantu Gelombang Mikro, Serta Pengujian Aktivitasnya Terhadap Bakteri

Biosynthesis of ZnO Nanoparticles Using Fingerroot (Boesenbergia rotunda) Extract Assisted by Microwave and Evaluation of Their Antibacterial Activity

147-157 Yusup Junaedi, Purwantinigsih Sugita, Muhamad Farid
Read Statistic: 136

Pengaruh Ukuran Partikel dan Suhu Terhadap Derajat Asetilasi dan Yield Pada Ekstraksi Kitin dari Belalang Melalui Green Method

The Effect of Particle Size and Temperature on the Degree of Acetylation and Yield in Chitin Extraction from Grasshoppers Using the Green Method

158-166 Meila Savitri, Safina Handayani Pangestoe, Hilman Imadul Umam, Meka Saima Perdani, Teguh Pambudi
Read Statistic: 287

Pemanfaatan Limbah Karbon-Aktif Melalui Reaktivitasi Termal Sebagai Adsorben Ion Kadmiun pada Lindi TPA

Utilization of Activated Carbon Waste Through Thermal Reactivity as a Cadmium Ion Adsorbent in Landfill Leachate

167-174 Bambang Sardi, Anggie Putry Afrilya, Sitti Maghfirah Andriani, Try Novika, Fadlia Azzahra, Wahyu Hidayat
Read Statistic: 167

Spesiasi dan Bioavailabilitas Merkuri dalam Sedimen Teluk Palu Pasca Gempa dan Tsunami dengan Metode Diffusive Gradient in Thin Film (DGT)

Speciation and Bioavailability of Mercury in Palu Bay Sediments Post Earthquake and Tsunami Using the Diffusive Gradient in Thin Film (DGT) Method

175-184 Husain Sosidi, Khairuddin, Putri Dwiyana, Ruslan Ruslan
Read Statistic: 102

Fitoremediasi Air Tercemar Nikel (Ni) dan Merkuri (Hg) Menggunakan Tanaman Azolla filiculoides Lam.

Phytoremediation of Nickel and Mercury Contaminated Water Using Azolla filiculoides Lam.

185-192 Sri Utami Rudy, Wahyu Harso, Ramadanil, Moh. Iqbal, Prismawiryanti
Read Statistic: 129
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