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All Journal Jurnal Periodic Jurusan Kimia UNP Techno: Jurnal Penelitian SAINTIFIK@ : Jurnal Pendidikan MIPA ALCHEMY Jurnal Penelitian Kimia Jurnal Kimia Terapan Indonesia Jurnal Pendidikan Kimia Unkhair (JPKU) Jurnal Pengabdian Khairun
Muhammad Amin
Program Studi Pendidikan Kimia, FKIP, Universitas Khairun, Kota Ternate, Maluku Utara, Indonesia
Religion Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Environmental Science Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Social Sciences Transportation Other

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Kajian Rumah Sehat Di Ternate Muhammad Tayeb Mustamin; Sayyid Quraisy
Jurnal Pengabdian Khairun Vol 2, No 1 (2023)
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/jpk.v2i1.6857

Abstract

WHO dalam laporannya mengenai Kesehatan dan lingkungan mendefenisikan rumah adalah struktur fisik atau bangunan untuk tempat berlindung, dimana lingkungan berguna untuk kesehatan jasmani dan rohani serta keadaan sosialnya baik demi kesehatan keluarga dan individu. Rata – rata mata pencaharian masyarakat adalah pecaharian lepas harian. Selain itu, masyarakat juga berprofesi sebagai pedagang, pegawai negeri, buruh, dsb. Masyarakat di Ternate merupakan masyarakat yang mempunyai keinginan tinggi untuk memajukan kelurahannya, hal ini dapat dibuktikan pada kemauan warga dalam berkerja sama dan bergotong – royong untuk pembangunan sarana dan prasarana public.Kehidupan masyarakat di beberapa kelurahan yang masih sangat sederhana berpengaruh juga dalam kesadaran masyarakatnya mengenai kesehatan lingkungan terutama dalam pengelolaan rumah warga oleh warga sendiri. Banyaknya sampah dan kurangnya kesadaran masyarakatnya untuk membuang sampah pada tempatnya sehingga menyebabkan tidak bersihnya lingkungan rumah.
Pengukuran Anion Anorganik Secara Simultan dalam Sampel Air Tanah dan Air Ledeng Menggunakan Kromatografi Ion Amin, Muhammad; Oktavia, Budhi
Periodic Vol 12, No 3 (2023): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/periodic.v12i3.126222

Abstract

Ion chromatography is an advanced and highly sensitive form of ion exchange chromatography that can effectively detect ion species, whether organic or inorganic ions. This research study utilized ion chromatography with a suppressed conductivity detection system to separate and measure the concentration of fluoride, chloride, nitrite, bromide, nitrate, phosphate, and sulfate ions in groundwater and tap water samples. The eluent solution used in this separation contained 6.0 mmol/L Na2CO3 and 0.25 mmol/L NaHCO3, which was crucial in ensuring the accuracy and selectivity of the detections. The samples were collected in 3 sub-districts in Ternate City, and the study's findings shed light on the water quality in the area.
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.
Aplikasi Teknik Kromatografi Ion pada Penentuan Kadar Mineral Mikro Kation (Na+, NH4+, K+, Mg2+, Ca2+, Ba2+, dan Sr2+) dan Anion (F-, Cl-, Br-, NO2-, NO3-, SO42–, dan PO43-) dalam Sampel Air Panas Bumi untuk Tujuan Balneoterapi Muhammad Amin; Budhi Oktavia
ALCHEMY Jurnal Penelitian Kimia Vol 16, No 2 (2020): September
Publisher : UNIVERSITAS SEBELAS MARET (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/alchemy.16.2.36210.171-178

Abstract

Sebuah studi telah dilakukan untuk menentukan kadar mineral mikro kation dan anion dalam sampel air panas bumi dengan teknik kromatografi ion. Semua sampel yang dikumpulkan, berasal dari beberapa titik sumber air panas bumi di Jailolo, Provinsi Maluku Utara. Kromatografi ion telah dikenal sebagai metode analitik yang sangat populer digunakan untuk menentukan kadar anorganik kation dan anion dalam berbagai jenis sampel air. Metode deteksi kromatografi ion menggunakan sistem konduktivitas yang tidak tertekan dan tertekan dapat diterapkan pada masing-masing penentuan kadar mineral kation dan anion. Dalam penelitian ini, kromatografi ion dengan sistem konduktivitas tidak ditekan digunakan untuk penentuan 7 jenis kation seperti Na+, NH4+, K+, Mg2+, Ca2+, Ba2+, dan Sr2+, sedangkan kromatografi ion dengan sistem konduktivitas ditekan digunakan untuk penentuan 7 jenis anion seperti F-, Cl-, NO2-, Br-, NO3-, SO42-, dan PO43-. Pada kadar 2,5 mmol/L HNO3 dan kombinasi 6 mmol/L Na2CO3+0,5 mmol/L NaHCO3 digunakan sebagai fase gerak untuk masing-masing penentuan kadar mineral mikro kation dan anion.Application of Ion Chromatography Technique to the Determination of Micro Mineral Concentration of Cations (Na+, NH4+, K+, Mg2+, Ca2+, Ba2+, and Sr2+) and Anions (F-, Cl-, Br-, NO2-, NO3-, SO42–, and PO43-) in Geothermal Water Samples for Balneotherapy.A study was conducted to determine the micro mineral concentration of cations and anions in geothermal water samples by ion chromatography (IC) techniques. All the samples were collected at several sampling points in Jailolo district, North Maluku Province. IC has been known to be a very popular analytical method used to determine the concentration of cations and anions in various types of water samples. With non-suppressed and suppressed conductivity detection, IC systems can be applied for the determination of cations and anions, respectively. In this study, IC with a non-suppressed system was used for the determination of seven cations such as Na+, NH4+, K+ Mg2+, Ca2+, Ba2+, and Sr2+. Meanwhile,IC witha suppressed system was used for the determination of 7 anions such as F-, Cl-, NO2-, Br-, NO3-, SO42-, and PO43-. A solution of 2.5 mmol/L HNO3 and a combination of 6 mmol/L Na2CO3 and 0.5 mmol/L NaHCO3 were used as the eluent for the determination of mineral cations and anions, respectively.
Studi Komputasi Kompleks 1,10-Fenantrolin dengan Logam Fe, Cu, Co, Ni dan Zn Menggunakan Metode Density Functional Theory (DFT) Fahria salamat; Muliadi -; Topan Setiawan; Muhammad Amin
Jurnal Pendidikan Kimia Unkhair (JPKU) Vol 2 No 1 (2022): Jurnal Pendidikan Kimia Unkhair (JPKU)
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/jpku.v2i1.5018

Abstract

AbstrakPenelitian kimia komputasi dilakukan untuk mengetahui pemodelan struktur kompleks 1,10-fenantrolin dengan logam Fe, Cu, Co, Ni, Zn menggunakan metode DFT dan untuk  mengetahui aktivitas kompleks 1,10-fenantroline dengan logam Fe, Cu, Co, Ni dan Zn pemodelan struktur telah dilakukan secara komputasi dengan menggunakan software ChemDraW Ultra 12.0  dan GaussView dengan basis set B3LYP/6-31G. Parameter yang diperoleh dari hasil optimasi adalah EHOMO, ELUMO, dengan energi total. Dari nilai EHOMO dan ELUMO yang diperoleh kemudian dihitung nilai energy Gap (∆E),potensial ionisasi(I), afinitas elektron(A), elektronegativitas (x),hardness (ɳ), dan softness ( ). Perhitungan secara komputasi secara kimia menunjukan bahwa memodelkaan struktur Kompleks 1,10 Fenantrolin menggunakan metode DFT (Density Finctional Theory) Nilai energi total untuk masing–masing Kompleks 1,10 Fenantrolin adalah Fe-Phen :115.272 kcal/mol, Cu-Phen: 114.711 kcal/mol, Co-Phen: 119,192, kcal/mol Ni-Phen:113,641 kcal/mol:Zn-Phen : 123.99 kcal/mol.Kata Kunci:         1,10 Fenantrolin, komputasi, DFT, EHOMO, ELUMO AbstractComputational chemistry research was conducted to determine the structural modeling of the 1.10-phenanthroline complex with Fe, Cu, Co, Ni, Zn using the DFT method and to determine the activity of the 1,10-phenanthroline complex with Fe, Cu, Co, Ni and Zn metals. Has been done computationally using the software ChemDraW Ultra 12.0 and GaussView with the base set B3LYP/6-31G. The parameters obtained from the optimization results are EHOMO, ELUMO, with total energy.  From the obtained EHOMO and ELUMO values, the energy gap(∆E), ionization potential(I), electron affinity(A), electronegativity(x), hardness(ɳ), and softness(σ) were calculated.  Computational chemical calculations show that modeling the structure of the 1,10 phenanthroline complex using the DFT (Density Finctional Theory) method. The total energy value for each 1,10 phenanthroline complex is Fe-Phen :115,272 kcal/mol, Cu-Phen: 114,711 kcal  /mol, Co-Phen: 119,192, kcal/mol Ni-Phen:113,641 kcal/mol:Zn-Phen : 123.99 kcal/mol.Keywords:1,10 Phenanthroline, computation, DFT, EHOMO, ELUMO 
Analisis Kadar Anion F-, Cl-, NO3-, Dan SO42- Menggunakan Kromatografi Ion Untuk Mengetahui Kualitas Air Sumur Di Desa Sidangoli Gam Putri Suci Lestari; Muhammad Amin; Nur Asbirayani Limatahu
Jurnal Pendidikan Kimia Unkhair (JPKU) Vol 1 No 1 (2021): Jurnal Pendidikan Kimia Unkhair (JPKU)
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/jpku.v1i1.5050

Abstract

AbstrakPenelitian ini bertujuan untuk menentukan kadar anion F-, Cl-, NO3-, dan SO42- menggunakan kromatografi ion untuk mengetahui kualitas air sumur di Desa Sidangoli Gam. Kualitas air dapat ditinjau melalui parameter anion yang terkandung dalam air. Kadar anion pada air harus sesuai dengan standar baku mutu yang ditetapkan oleh Permenkes No. 492/Menkes/Per/IV/2010 dan Permenkes No. 32 tahun 2017. Dilakukan analisis untuk mengetahui kadar anion F-, Cl-, NO3-, dan SO42- sehingga diketahui kualitas air sumur desa Sidangoli Gam. Teknik pengumpulan data dilakukan secara eksperimen menggunakan kromatografi ion untuk menentukan kadar anion F-, Cl-, NO3-, dan SO42-. Hasil penelitian menunjukkan bahwa kadar beberapa anion F-, Cl-, NO3-, dan SO42- pada air sumur T1, T3, dan T4 telah melebihi Standar Baku Mutu yang berlaku di Indonesia sehingga air tidak dapat dikonsumsi namun dapat digunakan untuk keperluan mandi, mencuci, dan keperluan lainnya. Air sumur T2 masih dapat dikonsumsi dan digunakan untuk memasak karena kadar anion F-, Cl-, NO3-, dan SO42- masih berada di bawah standar baku mutu.. Kata Kunci :        Kromatografi Ion, Anion, Kualitas air sumur, Sidangoli Gam Abstract This study aims to determine both of anions levels F-, Cl-, NO3-, and SO42- use ion chromatography to determine the quality of well water in Sidangoli Gam Village. Water quality can be evaluated through the parameters of the anions contained in the water. The anion content in water must comply with the quality standards stipulated by Permenkes No. 492/Menkes/Per/IV/2010 and Permenkes No. 32 of 2017. An Analysis was conducted to determine the levels of anions F-, Cl-, NO3-, and SO42- so that the quality of well water in Sidangoli Gam village was known. The data collection technique was carried out experimentally using ion chromatography to determine the levels of anions F-, Cl-, NO3-, and SO42-. The results showed that the levels of several anions F-, Cl-, NO3-, and SO42-  in well water T1, T3, and T4 had exceeded the applicable Quality Standards in Indonesia so that water could not be consumed but could be used for bathing, washing, and other purposes. Well water from T2 can still be consumed and used for cooking because the levels of anions F-,   Cl-, NO3-, and SO42- are still below quality standards.Keywords:Ion chromatography, anions, well water quality, Sidangoli Gam  
Pengaruh Model Problem Based Learning terhadap Hasil Belajar Kimia Siswa Kelas XI pada Materi Asam Basa di SMA Negeri 6 Kepulauan Sula Susan Tuhulele; Muhammad Amin; Merlin
Jurnal Pendidikan Kimia Unkhair (JPKU) Vol 6 No 1 (2026): Jurnal Pendidikan Kimia Unkhair
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/jpku.v6i1.12299

Abstract

Abstrak Penelitian ini bertujuan menganalisis pengaruh model pembelajaran Problem Based Learning (PBL) terhadap hasil belajar siswa pada materi asam basa. Penelitian menggunakan metode eksperimen dengan desain One Group Pretest–Posttest Design. Subjek penelitian terdiri atas 21 siswa kelas XI yang dipilih menggunakan teknik sampling jenuh. Instrumen penelitian berupa tes esai sebanyak 10 butir yang telah memenuhi validitas isi dengan nilai rata-rata sebesar 87,25%. Data dikumpulkan melalui pretest dan posttest, kemudian dianalisis menggunakan statistik deskriptif, uji normalitas Shapiro–Wilk, uji hipotesis dilakukan menggunakan uji Paired Sample t-test ,dan besar pengaruh menggunakan N-Gain. Data pretest dan posttest berdistribusi normal dengan nilai signifikansi > 0,05, Hasil uji paired sample t-test menunjukkan nilai signifikansi Sig. < 0,05, yang mengindikasikan adanya pengaruh signifikan model pembelajaran PBL terhadap hasil belajar siswa sedangkan nilai N-Gain sebesar 0,39 termasuk kategori sedang. Dengan demikian, model pembelajaran Problem Based Learning (PBL) efektif meningkatkan hasil belajar siswa pada materi asam basa. Kata Kunci: Problem Based Learning (PBL), hasil belajar, asam basa, Abstract This study aimed to examine the effect of the Problem-Based Learning (PBL) model on students' learning outcomes in the acid–base topic. The study employed an experimental method using a One-Group Pretest–Posttest Design. The participants consisted of 21 eleventh-grade students selected through total sampling. The research instrument was a 10-item essay test that had been validated by experts, with an average content validity score of 87.25%. Data were collected through pretest and posttest administration and analyzed using descriptive statistics, the Shapiro–Wilk normality test, and the paired-samples t-test for hypothesis testing, while the magnitude of improvement was measured using the N-Gain index. The pretest and posttest data were normally distributed (p > 0.05). The results of the paired-samples t-test showed a statistically significant difference (p < 0.05), indicating that the PBL model had a significant effect on students' learning outcomes. Furthermore, the N-Gain score of 0.39 was categorized as moderate. Therefore, the Problem-Based Learning (PBL) model was effective in improving students' learning outcomes in the acid–base topic. Keyword: Problem-Based Learning (PBL), learning outcomes, acid–base
Ion Chromatographic Method for the Simultaneous Determination of Anions and Cations in Firecrackers and Matches Samples as Known Potential Explosives Muhammad Amin; Lee Wah Lim
ALCHEMY Jurnal Penelitian Kimia Vol 15, No 1 (2019): March
Publisher : UNIVERSITAS SEBELAS MARET (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (980.746 KB) | DOI: 10.20961/alchemy.15.1.27570.138-148

Abstract

A reference ion chromatography method based on column switching has been presented for the simultaneous determining anions (Cl−, ClO3−, NO2−, SO42−, and NO3−) and/or cations (NH4+, Na+, K+, Ca2+, and Mg2+) using one pump, one type of mobile phase, and one detector. The reference method performed anion-exchange column and cation-exchange column and arranged serially via one 10-port valve. The determination of either anions or cations in one determination system could be made by switching the valve. When the use of 1.25 mM trimellitic acid as a mobile phase and the instrument was operated at a flow rate of 0.6 mL/min, five anions and five cations were determined on the anion-exchange column and the cation-exchange column, respectively. All anions target could be determined completely within 55 minutes, whereas the cations target could be determined within 35 minutes. The calculation of limit of detection using S/N=3 was 3.85 − 14.10 µM for anions and 2.95 − 10.58 µM for cations. The relative standard deviations of all ions were less than 3.82%, 3.29%, and 3.21% for retention time, peak area, and peak height, respectively. The reference method was then applied for the simultaneous determining anions and/or cations contained in firecrackers and matches samples as known potentially explosives.
Co-Authors Anggieta Pahmawati Kusuma Budhi Oktavia Budhi Oktavia Deasy Liestianty Fadlan Muin Fadlan Muin Fadlan Muin Fahria salamat Ibrahim Rahmat Lee Wah Lim Liestianty, Deasy Merlin Muliadi Muliadi Muliadi Muliadi Muto&#039;ah Intan Ariyana Nahdiah Amin Nur Anisa Nur Asbirayani Limatahu Nurfatimah Sugrah Nurjanah Baturante Nurmala Sari Duwila Putri Suci Lestari Rasmi A Sangaji Saras Wati Banapon Sayyid Quraisy Setiawan, Topan Setyani Dian Puspitasar Susan Tuhulele Topan Setiawan