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All Journal Jurnal Zarah Al-Kimia Jurnal Kesehatan ARTERI : Jurnal Ilmu Kesehatan Pasundan Food Technology Journal (PFTJ) Jurnal Pengabdian kepada Masyarakat Nusantara Journal of Community Development HARENA: Jurnal Gizi
DINA FITRIYAH
Departement of Biology, Faculty of Mathematics and Natural Sciences, Jember University
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Health Professions Industrial & Manufacturing Engineering Medicine & Pharmacology Nursing Public Health Social Sciences

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Journal : Al-Kimia

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Stigmasterol (Steroid) From Leaves of Solanum ferox L (Sour Eggplant) Plant Hazimah; Fadhli, Haiyul; Fitriyah, Dina
Al-Kimia Vol 11 No 1 (2023): JUNE
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v11i1.35337

Abstract

Solanum ferox L is a vegetable that is often used as a flavor in cooking that belongs to the Solanaceae family. Solanum ferox L contains terpenoids, steroids, flavonoids, alkaloids, and phenolic compounds. Solanum ferox has various bioactive compounds used as antirheumatic, antiasthma, antiviral, anticancer, and antibacterial. The aim of this study was to isolate and characterize the stigmasterol compound from the Solanum ferox plant. The compound was elucidated by UV, IR, and NMR spectroscopy and was named HSF. The HSF compound has the chemical formula C29H48O and the name is Stigmasterol.
Optimisation of The Cathodic Stripping Voltammetry For The Determination of Metal Ni(II) in The River Water pardi, Hilfi; Fitriyah, Dina
Al-Kimia Vol 11 No 1 (2023): JUNE
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v11i1.35688

Abstract

The study was carried out to determination the metal Ni(II) in river water samples using cathodic stripping voltammetry (CSV) method. In order to achieve optimum conditions for the determination of metal Ni(II), the accumulation potential and accumulation time conditions of the CSV method have been achieved. The results of this research obtained under the optimum conditions for Ni(II) measurement using an electrolyte solution of ammonium chloride with a potential accumulation (accv) of -0.7 V and a time accumulation (acct) of 60 s. The relative standard deviation of the 10 µg/L Ni(II) standard solution (n=8) is 0.53%, the recovery value is 98.82%. The CSV method for the determination of Ni(II) metal has been successfully applied to river water samples.
Co-Authors Ayu, Dessya Putri Haiyul Fadhli Harumi, Rahmatika Hazimah Hilfi Pardi Kartika, Ria Chandra Miftahul Jannah Nancy Willian Oktafa, Huda Puspita, Surya Dewi Ratri, Putri Rahayu Rosiana, Nita Maria Rusdiarti, Rusdiarti Sari, Sintiya Selviyanti, Erna Umbaran, Dessya Puti Ayu Warsito, Heri Werdiharini, Agustina Endah Yohan Yuanta, Yohan