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All Journal CHEMISTRY PROGRESS SAINSMAT Jurnal Fisika Unand Indonesian Journal of Chemistry ORBITA: Jurnal Pendidikan dan Ilmu Fisika Fullerene Journal of Chemistry SOSCIED Oxygenius Journal Of Chemistry Education The Studies of Social Sciences Jurnal ABDINUS : Jurnal Pengabdian Nusantara CORD Vivabio : Jurnal Pengabdian Multidisiplin Sciening : Science Learning Journal Biofarmasetikal Tropis (The Tropical Journal of Biopharmaceutical) Abdimas : Jurnal Pengabdian Kepada Masyarakat Jurnal Ilmiah Sains Seminar Nasional Hasil Penelitian LP2M UNM Jurnal FisTa : Fisika dan Terapannya Jurnal Pengabdian Masyarakat SMART: Jurnal Pengabdian Kepada Masyarakat Jurnal Ragam Pengabdian JIPI (Jurnal IPA dan Pembelajaran IPA) SAINSMAT: Jurnal Ilmiah Ilmu Pengetahuan Alam
Meytij Jeanne Rampe
Universitas Negeri Manado
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Other

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Pengujian Fitokimia dan Toksisitas Ekstrak Etanol Jantung Pisang Kepok (Musa paradisiaca LINN.) dengan Metode Brine Shrimp Lethality Test (BSLT) Meytij Jeanne Rampe; Joke Luis Tombuku
Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam Vol. 4 No. 2 (2015): Volume 4 Nomor 2 (September 2015)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Makassar

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Abstract

Telah dilakukan pengujian fitokimia dan toksisitas ekstrak etanol jantung pisang kepok (Musa Paradisiaca Linn.) dengan metode Brine Shrimp Lethality Test (BSLT). Pengujian dilakukan untuk mencari beberapa senyawa kimia dari ekstrak jantung pisang Musa Paradisaca. Linn serta mengetahui efek toksik terhadap larva udang Artemia salina. Leach. Maserasi jantung pisang kepok dilakukan dengan menggunakan etanol. Ekstrak etanol yang diperoleh dilakukan pengujian fitokimia dan toksisitas. Hasil pengujian fitokimia menunjukkan ekstrak etanol jantung pisang Musa paradisiaca. Linn memiliki komposisi senyawa flavonoid, kumarin dan senyawa fenolik lainnya. Ekstrak etanol jantung pisang kepok memberikan efek toksik terhadap larva udang Artemia salina. Leach dengan nilai LC50 sebesar 806,8 μg/mL.
Study of Frequency-Dependent Magnetic Susceptibility to the Iron Sand in Takalar Regency Vistarani Arini Tiwow; Meytij Jeanne Rampe; Muhammad Arsyad
Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam Vol. 7 No. 2 (2018): Volume 7 Nomor 2 (September 2018)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Makassar

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Abstract

Research on the study of frequency-dependent magnetic susceptibility to the iron sand in Takalar Regency has been conducted. The purpose of this study was to identify dominant magnetic minerals based on magnetic susceptibility data and analyze magnetic mineral sources based on frequency-dependent magnetic susceptibility. The method used was the magnetic rock method, especially the parameters of magnetic susceptibility. Measurements were made using a Bartington MS2 Susceptibility Meter device equipped with an MS2B sensor that works at low frequency (470 Hz) and high frequency (4700 Hz). The results indicate that iron sand contains ferrimagnetic minerals, namely magnetite. The value of magnetic susceptibility at low frequency and high frequency were identical and the percentage of frequency-dependent magnetic susceptibility was less than 2% which indicates that iron sand has multidomain magnetic grains (MD). The positive correlation between magnetic susceptibility at low frequency and frequency dependent indicates the dominant source of magnetic minerals derived from pedogenic processes, namely the weathering of volcanic rocks.
Co-Authors A.A. Ketut Agung Cahyawan W Adelia Mewengkang Ambaa, Nelce Dianty Apita, Anastasya Ardi Kapahang B, Riska Yohana BR Nainggolan. Bambang Setiaji Bambang Setiaji Boy Kristi Siburian Br Sinuhaji, Ayu Lestarina Charles Mengga Dokri Gumolung Eka Putra Mamangkai Emma Julin Pongoh Farly Reynol Tumimomor Fitzgerald Imanuel Wuwung Frangky Sangande Fritson Linggot Gita Gratia Patris Nangka Hanny Pontororing Hasmiati Hasmiati Henny Lieke Rampe Henny Lieke Rampe Igreya Mitchell Kumendong Ishak Pawarangan Jeferson Polii Jenny Kumajas John Zeth Lombok Karundeng, Fillioni Lombok, John Marhaenus Rumondor Maria Pangkey Marlina Karundeng Miftahul Jannah Moniaga, Wilson Marthin Muhammad Arsyad Muhammad Arsyad Mulyana Mulyana Oksan Prasetio Mundiahi Pariabti Palloan Pontororing, Henny Hesky Rampe, Henny Rampe, Henny L Rampe, Henny Lieke Ravinia Sasindua Regina Mongi Rymond Jusuf Rumampuk Saputra, M Reski Sayenne Givenshe Pungus Septiany C. Palilingan Slarmanat, Ruth Sonny Lumingkewas Sulistiawaty Sulistiawaty Sulistiawaty Sulistiawaty Sulistiawaty Sulistiawaty Sulistiawaty Sulistiawaty, Sulistiawaty Syalomita Amanda Pontoh Tombuku, Joke Luis Triyono Triyono . Triyono Triyono Tuerah, Jeane M. Umboh, Stella D. Undap, Hizkia Abraham Febrian Vistarani Arini Tiwow Wega Trisunaryanti Wega Trisunaryanti Wilce Anna Cahya Kuendo Wiwik Handayani Yosie Andriani