Article Per Year (5 Year)
p-Index From 2021 - 2026
1.235
P-Index
This Author published in this journals
All Journal Jurnal Riset Kimia CHEMPUBLISH JOURNAL Jurnal Zarah Akta Kimia Indonesia Jurnal Hilirisasi IPTEKS (JHI) Molekul: Jurnal Ilmiah Kimia
Salim, Emil
Andalas University
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Dentistry Education Engineering Health Professions Materials Science & Nanotechnology Public Health Veterinary Other

Published : 10 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search
Journal : Akta Kimia Indonesia

 1 
Synthesis of Polystyrene Sulfonate and Its Characterization as a Polymer Electrolyte Membrane Emil Salim; Afrizal Afrizal; Zilfadli Zilfadli
Akta Kimia Indonesia Vol 6, No 2 (2021)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25493736.v6i2.10916

Abstract

This study aims to synthesize polystyrene sulfonate (PSS) from polystyrene (PS) isolated from waste styrofoam. Sulfonation reaction of polystyrene was conducted using acetyl sulfonate as sulfonating agents with variation times and temperatures. The sulfonated products were characterized using FT-IR spectrophotometer, degree of sulfonation, cation exchange capacity, water uptake and thermal stability. The FTIR spectrums show vibration of O-H streching at wave number 3300-3400 cm-1, S=O streching at the wave number 1050-1200 cm-1 which indicates the presence of sulfonate groups. Sulfonation reaction at 40oC for 2 hours (SPS-40-2) gives the highest degree of sulfonation, cation exchange capacity, water uptake with values 1,960%, 0.1880 meq/gr, 9.04% respectively. Thermal gravimetry analysis shows that polystyrene sulfonate has better thermal stability than polystyrene.
Isolasi Senyawa Metabolit Sekunder dari Ekstrak Etil Asetat Daun Pulai (Alstonia scholaris (L.) R. Br.) berdasarkan Sifat Toksisitas dengan Metode BSLT (Brine Shrimp Lethality Test) Emil Salim; Suryati Suryati; Rini Ramadani; Wini Sukrila
Akta Kimia Indonesia Vol 7, No 2 (2022)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25493736.v7i2.14532

Abstract

Penelitian ini bertujuan untuk mengisolasi senyawa metabolit sekunder dari ekstrak etil asetat daun pulai (Alstonia scholaris) berdasarkan sifat sitotoksik terhadap larva udang Artemia salina. Pemisahan senyawa aktif dilakukan menggunakan kromatografi kolom, eluen petroleum eter:etil asetat (10:0-0:10) dan etil asetat:metanol (10:0–9:1), dan menghasilkan 8 fraksi (F1-F8). Fraction 6 paling aktif dengan nilai LC50 9,47 mg/L, kemudian direkromatografi dengan eluen petroleum eter:etil asetat (7:3) , diperoleh 5 sub-fraksi (F6.1-F6.5). Sifat toksisitas tertinggi ditunjukkan oleh subfraksi F6.5 dengan LC50 7,694 mg/L. Subfraksi F6.5 kemudian dimurnikan dan dikarkterisasi dengan UV dan FTIR. Senyawa hasil isolasi diketahui merupakan senyawa alkaloid.
Co-Authors -, Yefrida Adlis Santoni Afrizal - Afrizal Afrizal Aisman Aisman Asri Amelia Bustanul Arifin Cesar Wellya Refdi Daimon Syukri Felga Zulfia Rasiana Gustia Elizar Hasnirwan Hasnirwan Ikhsan Gusti Rilma Indah Putri Lestari Ismed Ismed Leidina Zein Lucy Prima Ardi Mai Efdi Nika Rahma Yanti Nindi Antika Febriana Nindi Antika Febriana Norman Ferdinal Novizar Nazir Refilda Refilda Refinel - Riga Habib Ngestu Rini Ramadani Sanusi Ibrahim Silfani Mairanti Suryati Wellyalina, Wellyalina Wini Sukrila Yogi Afritunando Zilfa Zilfa