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All Journal Albacore : Jurnal Penelitian Perikanan Laut Makara Journal of Science
Ibrahim, Sofian
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Agriculture, Biological Sciences & Forestry Humanities

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Synergistic Effect of Acylpyrazolone Integrated with Multiwalled Carbon Nanotubes on the Electrochemical Analysis of Ascorbic Acid Mohamad Mahbob, Emi Norzehan; Ahmad, Mohamad Syahrizal; Md Isa, Illyas; Hashim, Norhayati; Ul-Hamid, Anwar; Saidin, Mohamad Idris; Suyanta, Suyanta; Ibrahim, Sofian
Makara Journal of Science Vol. 28, No. 1
Publisher : UI Scholars Hub

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Abstract

Square wave voltammetry, cyclic voltammetry, chronocoulometry, and electrochemical impedance spectroscopy were employed to assess ascorbic acid’s electrochemical behavior in multiwalled carbon nanotubes (MWCNTs)/carbon paste electrode (CPE) modified by 1-phenyl-3-methyl-4-metafluorobenzoyl-5-pyrazolone (HPMmFBP). The ascorbic acid’s irreversible oxidation peak appeared at approximately 0.5 V. The shifting of the peak potential at the pH range of 6.0–8.4 showed the involvement of protons in the ascorbic acid oxidation. Moreover, the shifting of the peak potential with scan rate in the range of 0.07–0.4 V/s confirmed that the oxidation reaction was irreversible. Under optimized conditions, the oxidative peak current showed linear dependence on the ascorbic acid’s concentration between 1 and 1000 μM with limit of detection (LOD) and quantification (LOQ) at 0.1 and 0.34 μM, respectively. HPMmFBP/MWCNT/CPE exhibit good antiinterference ability, reproducibility, repeatability, and stability and was utilized for the accurate and rapid ascorbic acid detection in commercial tablets. Therefore, it has good potential for practical application.
ANALISIS SUSTAINABLE LIVELIHOOD NELAYAN SUKU BAJO DI KAMPUNG WURING KECAMATAN ALOK BARAT KABUPATEN SIKKA Ibrahim, Sofian; Sapanli, Kastana; Suhana
Jurnal Penelitian Perikanan Laut (Albacore) Vol 8 No 3 (2024): Albacore
Publisher : Departemen PSP IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/core.8.3.275-287

Abstract

Masyarakat nelayan suku Bajo Kampung Wuring merupakan salah satu bagian masyarakat pesisir yang bisa beradaptasi dan mampu memanfaatkan sumberdaya perikanannya. Namun mayoritas nelayan suku Bajo masih hidup serba keterbatasan terutama nelayan kecil dan buruh nelayan. Nelayan suku Bajo masih memiliki masalah dengan keberlanjutan hidupnya dari masalah sosial, ekonomi dan lingkungan serta dampak perubahan iklim. Perubahan iklim seperti permukaan air laut naik, gelombang tinggi, hujan deras dan badai sangat mempengaruhi keberlanjutan hidup nelayan suku Bajo. Penelitian ini bertujuan untuk menganalisis status aset sustainable livelihood suku Bajo di Kabupaten Sikka. Penelitian ini dilaksanakan pada bulan September-Oktober 2023 di Kampung Wuring Kecamatan Alok Barat, Kabupaten Sikka. Metode pengumpulan data yang digunakan adalah wawancara. Metode penelitian yang digunakan analisis sustainable livelihood adalah Multiaspect Sustainability Analysis (MSA) untuk menilai status keberlanjutan. Hasil penelitian dalam analisis status sustainable livelihood nelayan suku Bajo di Kampung Wuring dengan total nilai rata-rata sebesar 48,3. Sustainability nilai yang tertinggi adalah aspek human capital (73,4), social capital (73,4) dan economic and financial capital (53,4), sedangkan aspek yang terendah adalah physical capital (40) dan natural capital (26,6). Sehinga perlu perhatian khusus terhadap fakor natural capital kerena memiliki nilai status kurang berkelanjtan. Kata kunci: capital, keberlanjutan, nelayan, suku Bajo
Co-Authors Ahmad, Mohamad Syahrizal Hashim, Norhayati Md Isa, Illyas Mohamad Mahbob, Emi Norzehan Saidin, Mohamad Idris sapanli, kastana Suhana Suhana Suyanta Suyanta Ul-Hamid, Anwar