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All Journal ALKIMIA : Jurnal Ilmu Kimia dan Terapan Jurnal Kaharati Cipasung Techno Pesantren: Scientific Journal
Simbolon, Wenika
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Public Health Social Sciences

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A Studi Kasus: Analisis Laju Korosi Terhadap Berbagai Jenis Paku Hakim, Muh. Supwatul; Hermayantiningsih, Dwi; Nainggolan, Yuni; Sugiyani, Tina; Simbolon, Wenika; Yuneta; Silalahi, Anasthasya
Cipasung Techno Pesantren: Jurnal Ilmiah Vol 18 No 1 (2024): Cipasung Techno Pesantren: Scientific Journal
Publisher : LPPM Sekolah Tinggi Teknologi Cipasung

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Abstract

Abstract— This research aims to determine the corrosion rate of different types of nails by immersing them in water of the same quality. The method used is weight loss method. Each nail was immersed in water for 1–7 days and then weighed every day. The highest corrosion rate was obtained for steel nails with an average corrosion rate of 0.09 mmpy and the lowest corrosion rate was obtained for wall nails with an average corrosion rate of 0.02 mmpy. The largest difference in nail weight after soaking was for the umbrella nail at 0.48 grams, while the smallest difference in nail weight was for the wall nail at 0.11 grams.
Determination of Albumin Level of Patin Fish from Kahayan River, Central Kalimantan by Biuret Method Yuliana, Yuliana; Pramudita, Dimas; Simbolon, Wenika; Imelya, Marsya
ALKIMIA Vol 7 No 1 (2023): ALKIMIA
Publisher : SCIENCE AND TECHNOLOGY FACULTY OF UNIVERSITAS ISLAM NEGERI RADEN FATAH PALEMBANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19109/4fsmww40

Abstract

Albumin plays important roles in the health of the body, such as stabilizing intravascular fluid pressure, facilitating molecular transport, and facilitating fluid movement in the body. The high cost of albumin, the limited availability of albumin sources, and the uncertainty surrounding its halal status underscore the imperative for this research. The objective of this study was to identify alternative sources of albumin, with a focus on exploring non-fish sources. Patin fish, a species endemic to Central Kalimantan, is a promising alternative due to its abundance and cost-effectiveness. The albumin content of steamed and dipped patin fish at 10, 15, 20, and 25 minutes was determined using the biuret method. The findings indicated that steaming yielded higher albumin content than dipping, with values of 4.41% and 3.88%, respectively. The optimal steaming duration was determined to be 15 minutes, while the optimal dipping duration was 20 minutes. These findings suggest that steaming may serve as a viable alternative source of fish albumin, offering a more economical option than snakehead fish.
Sintesis dan Karakterisasi XRD dari Nanosilika Menggunakan Metode Sol-gel Pramudita, Dimas; Nababan, Jesika; Isaura, Anasthasya; Ratnalisti, Putri; Simbolon, Wenika; Sylvani, Miranti Maya; Beladona, Siti Unvaresi Misonia; Putra, Riandy
Jurnal Penelitian UPR Vol. 5 No. 1 (2025): Jurnal Penelitian UPR: Kaharati
Publisher : LPPM Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52850/jptupr.v5i1.18458

Abstract

Mineral di Indonesia memiliki potensi besar untuk dikembang dalam sektor pertambangan dan industri salah satunya adalah silika. Silika oksida (SiO2) merupakan mineral berbentuk padatan yang banyak dianalisis dalam pengembangan penelitian sintesis nanomaterial. Pada penelitian ini sintesis nanomaterial silika dilakukan menggunakan metode sol-gel untuk memperoleh kristal murni yang sesuai standar. Tujuan dilakukan penelitian ini adalah menganalisis karakterisasi dan kemurnian hasil kristalisasi silika (SiO2) dengan metode sol-gel menggunakan XRD. Penelitian sintesis silika menggunakan metode sol-gel dilakukan di UPT Laboratorium Terpadu, Universitas Palangka Raya, Kalimantan Tengah. Hasil penelitian menunjukkan bahwa sintesis nanosilika dengan metode sol-gel terjadi dalam 2 tahapan reaksi, yaitu reaksi hidrolisis dan reaksi kondensasi, dimana diperoleh hasil puncak 2θ = 26,7° dengan nilai intensitas yang tinggi, nilai kristalinitas 64,4%, dan ukuran rata-rata kristal sebesar 1,2544 nm.
Co-Authors Hakim, Muh. Supwatul Hermayantiningsih, Dwi Imelya, Marsya Isaura, Anasthasya Nababan, Jesika Nainggolan, Yuni Pramudita, Dimas Ratnalisti, Putri Riandy Putra Silalahi, Anasthasya Siti Unvaresi Misonia Beladona Sugiyani, Tina Sylvani, Miranti Maya Yuliana Yuliana Yuneta