Journal Description

KOVALEN: Jurnal Riset Kimia is a peer-reviewed journal of chemistry that published by the Chemistry Department, Tadulako University, Indonesia. This journal concern with publishing the original research articles, review articles, and the 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 including:
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

Current Issue

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

Published: Aug 31, 2024

Articles

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

10.22487/kovalen.2024.v10.i2.16629
85-94 Faradin Faradin, Asti Muharti, Nazwa Jinanti Dinafa, Holisha Widiyanto
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Read Statistic: 31

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

10.22487/kovalen.2024.v10.i2.17005
95-103 Laily Isna Ramadhani, Irwan Hidayatulloh, Nurcahyo, Dhyna Analyes Trirahayu
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Read Statistic: 29

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

10.22487/kovalen.2024.v10.i2.17028
104-113 Yuried Rieswana, Aurela Naura Aisyah, Sani, Suprihatin
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Read Statistic: 33

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

10.22487/kovalen.2024.v10.i2.17104
114-125 Sarawinda Hutagalung, James Sibarani, Resia Yoan Pramesti , Theresia Hellen Renata Puspaningtya
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Read Statistic: 56

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

10.22487/kovalen.2024.v10.i2.17273
126-134 Nabila Maharani Maelan, Nurazizah Melani Dewi, Sri Andini, Meka Saima Perdani, Aulia Wahyuningtyas
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Read Statistic: 39

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

10.22487/kovalen.2024.v10.i2.17288
135-146 Seswita Iwit, Ardi, Auzar Syarif
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Read Statistic: 37

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

10.22487/kovalen.2024.v10.i2.17229
147-157 Yusup Junaedi, Purwantinigsih Sugita, Muhamad Farid
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Read Statistic: 29

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

10.22487/kovalen.2024.v10.i2.17268
158-166 Meila Savitri, Safina Handayani Pangestoe, Hilman Imadul Umam, Meka Saima Perdani, Teguh Pambudi
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Read Statistic: 64

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

10.22487/kovalen.2024.v10.i2.17169
167-174 Bambang Sardi, Anggie Putry Afrilya, Sitti Maghfirah Andriani, Try Novika, Fadlia Azzahra, Wahyu Hidayat
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Read Statistic: 82

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

10.22487/kovalen.2024.v10.i2.17264
175-184 Husain Sosidi, Khairuddin, Putri Dwiyana, Ruslan Ruslan
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Read Statistic: 34

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

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

10.22487/kovalen.2024.v10.i2.17343
185-192 Sri Utami Rudy, Wahyu Harso, Ramadanil, Moh. Iqbal, Prismawiryanti
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Read Statistic: 38
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