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All Journal Techno: Jurnal Penelitian ALCHEMY Jurnal Penelitian Kimia
Deasy Liestianty
Universitas Khairun
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Energy Environmental Science Materials Science & Nanotechnology

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Suppressed Ion Chromatographic Analysis of Anionic Macroelements in Nutmeg (Myristica fragrans) Diversity Specific to North Maluku Muhammad Amin; Deasy Liestianty; Abu Rahmat Ibrahim; Nahdiah Amin; Budhi Oktavia
ALCHEMY Jurnal Penelitian Kimia Vol 20, No 1 (2024): March
Publisher : UNIVERSITAS SEBELAS MARET (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/alchemy.20.1.80543.151-161

Abstract

This study proposed an ion chromatography method for analyzing anionic macroelements (fluoride, chloride, nitrite, bromide, nitrate, sulfate, and phosphate), and applied it to nutmeg (Myristica fragrans) diversity to explore the potential of nutmeg as an electrolyte. The analysis method was based on a suppressed conductivity system that simultaneously analyzed the anionic macroelements on Metrohm Supp A 250/4.0 column using 8.0 mM sodium carbonate (Na2CO3) and 0.25 mM sodium bicarbonate (NaHCO3) as a mixture eluent. Excellent peak resolution and completed separation were achieved within 18 min when the flow rate of the detector was 0.8 mL/min. The peak height with calibration curves at 2.5 ‒ 30.0 mg/L concentration ranges was obtained for all anionic macroelements. All collected nutmeg samples were specific to North Maluku. Based on the standard samples used, the analysis results revealed that only four anionic macroelements (chloride, nitrate, sulfate, and phosphate) were found in the nutmeg samples, and the concentration of each anion (e.g., chloride ion, and so) was different for each type of nutmeg. The highest total of anionic macroelements concentration was found in the Myristica succedanea (1605.05 mg/kg) nutmeg sample, while Myristica specioga had the lowest (661.76 mg/kg). The method was validated regarding the detection limit (LOD) and reproducibility.
Analysis of Marine Debris Distribution Through Sort Transport Clean in the Coastal Waters of Ternate City Yumima Sinyo; Ningsih Saibi; Deasy Liestianty; Dira Ayu Annisa
TECHNO: JURNAL PENELITIAN Vol 13, No 2 (2024): TECHNO JURNAL PENELITIAN
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/tjp.v13i2.8358

Abstract

Marine pollution, originating from land-based sources and intentional dumping at sea, is a significant hazard to marine life and health. Plastic pollution, which constitutes about 85% of marine debris, causes severe damage to marine ecosystems and species, causing disruptions in marine activities and deteriorating seawater quality. This research aims to see the distribution of marine debris in the coastal waters of Ternate city. The method used in this research is purposive sampling technique through observation to obtain the composition of marine debris, the rate of increase of marine debris with 3 criteria, namely the presence of river mouths, community activities such as ecotourism activities and piles of garbage produced by fishermen. The data obtained was then analyzed by visually observing and recording. The result of this study is the discovery of organic and inorganic waste. The percentage density of organic waste is 13% while inorganic waste is 87%. This shows that inorganic waste is generated the most. Inorganic waste in the form of plastic, cloth, glass, steroform and aluminum is produced by human activities visiting the coast. The organic waste found is wood and fruit peels.
Co-Authors Budhi Oktavia Dira Ayu Annisa Ibrahim Rahmat Muhammad Amin Nahdiah Amin Ningsih Saibi Yumima Sinyo