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All Journal Jurnal Ecosolum Al-Kimia Communications in Science and Technology Indian Journal of Forensic Medicine & Toxicology
Maming
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Agriculture, Biological Sciences & Forestry Chemistry Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Engineering Environmental Science Public Health

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DAMPAK PENAMBANGAN EMAS TANPA IZIN (PETI) TERHADAP MAKROZOOBENTOS DI PERAIRAN SUNGAI BODI, DESA BODI, KECAMATAN PALELEH BARAT KABUPATEN BUOL, PROVINSI SULAWESI TENGAH Radianti Yahya Douw; Maming; Amir Yassi
Jurnal Ecosolum Vol. 10 No. 2 (2021): DESEMBER
Publisher : Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ecosolum.v10i2.18377

Abstract

ABSTRACT   Unlicensed Gold Mining (PETI) Effect on Macrozoobentos in The Waters of The Bodi River, Western Paleleh District, Buol District, Central Sulawesi Province, in addition to damaging the environment, also endangers the lives of miners and the surrounding community, therefore it is necessary to maintain water quality according to its designation. This study aims to determine the quality of the waters of the Bodi River, social and economic conditions, as well as the health condition of the mining community affected by PETI activities. The parameters studied were macrozoobentos ecology index.This research was conducted at 4 sample point stations representing observation locations, each representing Location I (Upstream), Location II (mining activity area), and Location III (settlement). This type of research is an analytic observational study, with a research design using a cross sectional study. Macrozoobentos samples were taken using the Ekman grab. The results showed that the status of the water quality of the Bodi River at Station 1,2,3, and 4 dominance of macrozoobentos indicates unstable, depressed and high dominance water conditions.
Microplastic Contents in Kijing Shells (Pilsbryoconchaexilis) in Tallo Makassarriver, Indonesia Yuliati; Anwar Daud; Anwar Mallongi; Burhanuddin Bahar; Mukono; Mahatma Lamuru; Maming
Indian Journal of Forensic Medicine & Toxicology Vol. 15 No. 3 (2021): Indian Journal of Forensic Medicine & Toxicology
Publisher : Institute of Medico-legal Publications Pvt Ltd

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37506/ijfmt.v15i3.16005

Abstract

Background : Plastic pollution in the aquatic environment has become a global concern because of its detrimental impact on river and marine ecosystems. Plastic waste that breaks down into plastic particles of microplastic size (less than 5 mm), allows fine particles to enter the food chain and leads to humans as top predators in the food chain.The purpose of this study was to determine the microplastic content of Kijing Shells (Pilsbryoconchaexilis) in the Tallo Makassar River.Methods: This type of research is observational with a laboratory approach using Minitab 16 software to determine the microplastic content of Kijing Shell (Pilsbryoconchaexilis) in the Tallo Makassar River.Results: The results of this study indicate that the abundance of microplastics in Kijing Shells (Pilsbryoconchaexilis) at station I is 5.6 Mps/Ind, station II is 2.2 Mps/Ind and station III is 1.8 Mps/Ind. For contaminants, station I was 100%, station II was 80% and station III was 60%. The most types of microplastics were line and fragment types, while the most common microplastics found were red, blue and gray. Conclutions: Kijing Shells (Pilsbryoconchaexilis) originating from the Tallo River, Makassar contain microplastics. The highest abundance of microplastics was at station I at 5.6 Mps/Ind, station II at 2.2 Mps/Ind and station III at 1.8 Mps/Ind. For contaminants, station I was 100%, station II was 80% and station III was 60%.
Synthesis and characterization of hydroxyapatite/SiO2/gelatin composites as bone scaffold candidates Wahda, Indah; Syaharuddin Kasim; Maming; Hasnah Natsir; St Fauziah; Yusafir Hala; Andi Muhammad Anshar; Usman, Andriani; Windasari; Indah Raya
Communications in Science and Technology Vol 9 No 1 (2024)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.9.1.2024.1350

Abstract

This study aims to determine the characteristics of hydroxyapatite/SiO2/gelatin composites to fulfil the bone scaffold standards. XRF analysis showed that limestone has a high CaO content of 92.89%, allowing it be used for hydroxyapatite synthesis. The wet precipitation method was used to synthesize hydroxyapatite; meanwhile, the freeze-drying method was used to synthesize the hydroxyapatite/SiO2/gelatin scaffold. FTIR analysis confirmed the characteristic peaks, which indicated the presence of compounds of hydroxyapatite (OH- and PO43-), SiO2 (Si-OH and Si-O-Si), and gelatin (N-H, C-H, and C=O). XRD analysis showed 98.1% hydroxyapatite phase and 1.9% SiO2 phase and SEM analysis showed a scaffold pore size of 155-218?m, optimal for cell attachment. Furthermore, mechanical testing resulted in a compressive strength of 1.71 MPa and porosity testing resulted in a porosity of 75%. This characterization showed the potential use of hydroxyapatite/SiO2/gelatin composites as bone scaffolds. This research can enable further development of scaffold materials in the field of tissue engineering.
Characterization and electrochemical properties analysis of reduced graphene oxide from corncob carbon as an electrode candidate: Synthesized using modified Hummers method Eka Anggriani Odja; Raya, Indah; Maming; Muhammad Zakir; Abd. Karim; Djabal Nur Basir
Communications in Science and Technology Vol 9 No 1 (2024)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.9.1.2024.1365

Abstract

This research aims to synthesize and characterize reduced graphene oxide (RGO), as well as analyse its electrochemical properties. The synthesis of RGO material from corn cobs went through several stage: carbonization, oxidation and reduction. The synthesis of RGO used a modified Hummer method, and was reduced using the reducing agent ascorbic acid. The synthesized RGO was then characterized using Fourier Transform Independent Spectroscopy (FTIR), X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM), and Energy Dispersive Spectroscopy (EDS). Electrochemical analysis using the cyclic voltammetry method, the specific capacitance value obtained showed that RGO had a higher capacitance value than GO. The research results showed that carbon from corn cobs, which has not been utilized optimally, can be synthesized as a basic material for making RGO as a quite promising material.
Spectroscopic Characterizations of Sediment in Karanrang Island (Spermonde Archipelago) using FT-IR, XRF and XRD Firman, Nur Faiizah Aqiilah; Armus, Rakhmad; Maming; Zakir, Muhammad; Permatasari Hasra, Adji; Fuad Fathurahman, Achmad
Al-Kimia Vol 12 No 2 (2024): DECEMBER
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.v12i2.41680

Abstract

Research about spectroscopic characterizations of sediment in Karanrang Island has been carried out. This research aimed to determine the content of mineral in sediment before doing further research (measurement 14C activity in sediment). Sediment sampling was conducted in the middle of the island with a depth of 0.5; 1.0 and 1.5 m. Sediment was analysed by Fourier-transform infrared (FT-IR), X-ray fluorescence (XRF) and X-ray diffraction (XRD). Based on the analysis, minerals were found lime (CaO), aragonite (CaCO3), silicon (Si), quartz (SiO2), strontium (Sr) and strontium oxide (SrO). Minerals contained in sediment are CaO (11.02; 11.20 and 12.11 %), CaCO3 (49.72; 51.84 and 53.57 %), Si (2.89; 3.53 and 3.43 %), SiO2 (11.02; 11.04 and 9.96), Sr (10.19; 7.52 and 10.03 %) and SrO (12.40; 11.96 and 9.15 %). Ca was found in the form of CaO and CaCO3. The results show that CaCO3 was the highest of mineral content in sediment. It can be concluded that sediment in Karanrang Island can be used as a sample for measuring 14C activity.
Co-Authors Abd. Karim AMIR YASSI Andi Muhammad Anshar Anwar Daud Anwar Mallongi Armus, Rakhmad Burhanuddin Bahar Djabal Nur Basir Eka Anggriani Odja Firman, Nur Faiizah Aqiilah Fuad Fathurahman, Achmad Hasnah Natsir Indah Raya Indah Raya Mahatma Lamuru Muhammad Zakir Mukono Permatasari Hasra, Adji Radianti Yahya Douw St Fauziah Syaharuddin Kasim Usman, Andriani Wahda, Indah Windasari YULIATI Yusafir Hala