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All Journal VALENSI Jurnal Bahan Alam Terbarukan Jurnal Matematika & Sains SEMIRATA 2015 REKAYASA PROSIDING SEMINAR KIMIA REPOSITORY KIMIA KOVALEN: Jurnal Riset Kimia Jurnal Kimia Mulawarman ALCHEMY Jurnal Penelitian Kimia Indonesian Journal of Chemistry JURNAL ATOMIK Chemistry Indonesian Journal of Chemical Research Molekul: Jurnal Ilmiah Kimia JURNAL KIMIA SAINTEK DAN PENDIDIKAN Molekul: Jurnal Ilmiah Kimia
Aman Sentosa Panggabean
Department Of Chemistry, FMIPA MUlawarman University-Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Education Electrical & Electronics Engineering Energy Engineering Environmental Science Materials Science & Nanotechnology Mathematics Physics

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Journal : JURNAL ATOMIK

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PEMANFAATAN RESIN Ca-ALGINAT TERMODIFIKASI DENGAN ETILENA DIAMINENA TETRAASETAT (EDTA) DALAM TAHAPAN PRAKONSENTRASI ION Mn(II) BERBASIS METODE KOLOM Sari, Rahma Juwita; Panggabean, Aman Sentosa; -, Erwin
JURNAL ATOMIK Vol 1 No 1 (2016)
Publisher : Jurusan Kimia FMIPA UNMUL

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Abstract

Research on modification of Ca-Alginate microcapsules with Ethylene Diamin Tetra Acetate (EDTA) and Utilization in stages pre concentration column Ion Pb based method has been done. Pre concentration method Pb metal ions is done by using the column or Off-Line method, the water sample is inserted into the column, in the elution using 1.5 M HCl, then eluat were collected and measured using Atomic Absorption Spectrophotometer. The optimum conditions in resin manufacture Ca-Alginate-EDTA is on the composition of CaCl2 1 M Na-alginate 1%, and 0.75% EDTA. The optimum conditions analytical performance of this resin microcapsules with the absorption of Pb most best at pH 8, retention capacity of 0.6546 mg / g resin, 1.5 M HCl eluent The concentration by volume Pb is 8 mL and 3 mL HCl eluen volume, analytical performance of this method good enough for Pb ion analysis is shown of the measurement value detection limit of 0.0469 mg / L level to able replicates expressed as a percentage coefficient of variance for 1:20%. this method can be applied to the analysis of metal ions Fe in water samples from the environment to the value of recoveries of> 95%, using techniques spike indicates that the sample matrix derived from Karang Mumus River and Well Water does not affect the measurement results and can be used by analysis of Pb in the sample water at trace levels. Keywords: Preconcentration, Resin Ca-Alginate-EDTA, Pb, Spectrophotometer
PEMBUATAN DAN KARAKTERISASI MEMBRAN ELEKTRODA SELEKTIF ION Cu(II) MENGGUNAKAN IONOFOR Na2S SEBAGAI SENSOR KIMIA Rosyada, Amrina; Arif, Moh. Syaiful; Panggabean, Aman Sentosa
JURNAL ATOMIK Vol 10 No 1 (2025)
Publisher : Jurusan Kimia FMIPA UNMUL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/ja.v10i1.1418

Abstract

Preparation and characterization of Cu(II) ion selective electrode membranes based on polyvinyl chloride (PVC) using sodium sulfide (Na2S) as the ionophore has been done. The use of PVC polymer functions as a material that strengthens the properties of the membrane mixed with Na2S to form a homogeneous membrane and can reduce the risk of leaks in the membrane used. However, PVC has stiff properties, so a plasticizer in the form of DOP was needed to reduce intermolecular forces and make the membrane elastic. The preparation was carried out with the composition Na2S : PVC : DOP, namely 6 : 3 : 1. The membrane was doped with CuSO4 solution for 7 days and the Cu2+ ESI performance was measured to increase the optimal conductivity of the membrane, it is done by doping the membrane, namely by inserting 1 M Cu2+ dopant metal. The ESI Cu2+ performance results show a solution composition of 1:2 CuSO4:KNO3 and works well in the composition range 10-5 - 10-1 M, with a Nernst factor value of 28.9 mV/decade and a detection limit of 1.01×10-5 M. The response time of ESI Cu2+ was 10-60 seconds and can be used for 3 days. ESI Cu2+ works in the pH range 4-6 and the presence of interfering ions Cd2+, Zn2+, Cl-, NO3- and SO42- does not affect the performance of ESI Cu2+.
Optimasi Kinerja Analitik Terhadap Penentuan Kadar Fluorin Pada Batubara Dengan Metode Spektrofotometer Visible Adha, Laila Sufina; Panggabean, Aman Sentosa; Kartika, Rudi
JURNAL ATOMIK Vol 2 No 1 (2017)
Publisher : Jurusan Kimia FMIPA UNMUL

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The research about analytical performance optimization to the determination of fluorine’s concentration inside coal using visible spectrophotometry method has been done. The optimum result of the obtain for measurement, some parameters of measurements were validated. Parameters of validation used in this research are accuracy, precision, linearity, LOD, LOQ and robustness of the method. The results of research obtained, the accuracy was 99,34% described in percent of the recovery, obtained precision are 0,4309% described in percent of RSD with linearity equation was y = 10,79x + 16,77. The result of measurement is very good which described by the value of LOD 0,0638 ppm and LOQ 0,2127 ppm. The conclusion of results are the determination of fluorine's concentration inside coal using visible spectrophotometry method have good precision and accuracy which can be accounted.
VALIDASI METODE “RAPID TEST” TERHADAP PENENTUAN PARAMETER TOTAL MOISTURE (AR), ASH CONTENT (AR) DAN CALORIFIC VALUE DI PT. KALTIM PRIMA COAL pakasi, Resy; Panggabean, Aman Sentosa; Gunawan, Rahmat
JURNAL ATOMIK Vol 1 No 2 (2016)
Publisher : Jurusan Kimia FMIPA UNMUL

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Telah dilakukan uji “Validasi Metode Rapid Test Terhadap Penentuan Parameter Total Moisture (ar), Calorific Value (ar) dan Ash Content (ar) Di PT. Kaltim Prima Coal”. Penelitian ini bertujuan untuk hasil perbandingan metode rapid test terhadap standar yang telah di tetapkan atau di gunakan oleh PT. Kaltim Prima Coal pada sampel batubara dengan optimalisasi waktu saat preparasi tanpa tahap pengeringan (as received) dengan batubara ukuran 11,2 mm yang nanti akan di validasi untuk mengetahui reliable apa tidak digunakan untuk kegiatan operasional di laboratorium.Penelitian dilakukan dengan cara dua macam pengambilan data yaitu data standar dan data rapid, meliputi parameter Total Moisture, Calorific Value dan Ash Content. Lalu dilakukan optimalisasi waktu saat preparasi yaitu tanpa tahap pengeringan dengan batubara ukuran 11,2 mm. Kemudian dilakukan uji validasi metode uji bias dan uji t.Berdasarkan uji validasi metode diperoleh hasil Total Moisture dan Ash Content pada batubara ukuran 11,2 mm tanpa tahap pengeringan dapat digunakan dengan tetap memperhatikan variance yang ada, sedangkan pada analisa Calorific Value tanpa tahap pengeringan tidak dapat digunakan melihat hasil yang diperoleh jauh dalam range yang ditentukan.
MODIFICATION AND CHARACTERIZATION OF TASIKMALAYA NATURAL ZEOLITES WITH Fe2O3 Oktaviani, Reka; Hindryawati, Noor; Panggabean, Aman Sentosa
JURNAL ATOMIK Vol 4 No 1 (2019)
Publisher : Jurusan Kimia FMIPA UNMUL

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Research on natural zeolite has been carried out as a porous material modified by Fe2O3 semiconductor material. Starting with natural zeolite preparation, dealumination by activating it using HCl solution, modifying natural zeolite with Fe2O3 using FeCl3 and NaOH solution, then characterized using X-Ray Fluorescence (XRF), X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and test the surface area using a Methylene Blue solution. The results of the XRF analysis showed that the composition of Fe2O3 increased after it was modified to 38.022%, which was previously namely 3.193%. The results of SEM analysis showed changes in the morphology of natural zeolites after being modified with Fe2O3. The results of the XRD analysis showed that there was a diffraction peak which provided information that the sample contained Fe2O3. Zeolite-Fe2O3 has a surface area of ??110,2707 m2/g. Keywords : natural zeolite, Fe2O3, semiconduktor
SINTESIS KARBON AKTIF CANGKANG JENGKOL (Pithecellobium lobatum) DENGAN BANTUAN ULTRASONIK SEBAGAI BAHAN PENYIMPAN ENERGI ELEKTROKIMIA Hariati, Hariati; Hindryawati, Noor; Panggabean, Aman Sentosa
JURNAL ATOMIK Vol 2 No 2 (2017)
Publisher : Jurusan Kimia FMIPA UNMUL

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Research on the synthesis of activated carbon from jengkol shells (Pithecellobium lobatum) with the help of ultrasonic waves as an electrochemical energy storage material has been done. The activated carbon from jengkol shells is characterized by surface area using blue methylene method and pore morphology with SEM (Scanning Electron Microscope) instrument. The characterization results show that the active carbon with ultrasonic wave exposure has a larger surface area of 181.3693 m2/gram than the activated carbon without exposure to ultarsonic waves of 178.0290 m2/gram. The SEM results in activated carbon with ultasonic wave exposure indicate that the pore distribution is more evenly distributed, the number of pores more, and the pore size tends to be smaller, whereas in the activated carbon without the exposure of larger and slightly larger portions of ultrasound waves. The optimum value of capacitance on activated carbon without and with ultrasonic wave exposure of and 6.97 μF/gram and 5.21 μF/gram.
PENGEMBANGAN METODE RAPID TEST DALAM PENENTUAN ASH CONTENT DAN CALORIFIC VALUE BATUBARA DI LABORATORIUM PT JASA MUTU MINERAL INDONESIA Kumalasari, Anisa; Panggabean, Aman Sentosa; Akkas, Erwin
JURNAL ATOMIK Vol 2 No 1 (2017)
Publisher : Jurusan Kimia FMIPA UNMUL

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Abstract

A research on development of rapid test methods for two parameters, calorific value and ash content, based on the needs of minimum time analysis has been conducted. This study aims to determine whether the analytical performance of rapid test methods is comparable with the standard methods. The results showed that the standard and the rapid test method have good analytical performance. Accuracy results which is expressed as recovery percentage show that the calorific values of both methods were in the range of 99.75 % - 100.40 % and the ash content values ​​with both methods were in the range of 93.33 % - 103.70 %. Precision results by CV percentage showed that the calorific value were 0.21 % and 0.23 %, and the value of ash content were 4.03% and 4.28%. For the ruggedness parameter test, the success rate was almost for the entire parameter, excepts for precision test where the ash content value obtained has CV percentage ≥ 5 %. Nevertheless, the overall parameters of the test and the analytical performance analysis are extremely good and acceptable according to the references and a rapid test method can be used as an alternative method.
VALIDASI METODE RAPID TEST DALAM PENENTUAN TOTAL MOISTURE, ASH CONTENT, CALORIFIC VALUE (AR) PADA BATUBARA TERHADAP STANDAR ISO UKURAN 3 MM PT. KALTIM PRIMA COAL Sari, Ermalia Lintang; Panggabean, Aman Sentosa; Hindryawati, Noor
JURNAL ATOMIK Vol 1 No 2 (2016)
Publisher : Jurusan Kimia FMIPA UNMUL

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Penelitian validasi metode rapid test dalam penentuan total moisture, ash content, calorific value (as received) pada batubara terhadap standar ISO (International Organization for Standardizations) dengan ukuran 3 mm (studi kasus di PT. Kaltim Prima Coal) telah dilakukan. Tujuan penelitian ini adalah mengetahui perbedaan pada total moisture, ash content, calorific value jika dilakukan dalam basis (ar) dan mengetahui hasil jika batubara yang digunakan dalam operasional berukuran 3 mm. Berdasarkan penelitian yang telah dilakukan dengan menggunakan batubara ukuran 3 mm diperoleh hasil pada total moisture dan ash content untuk batubara ini tidak terdapat perbedaan dan dapat digunakan dalam operasional laboratorium, sedangkan pada calorific value terdapat perbedaan pada batubara ini. Dalam penentuan ini harus tetap memperhatikan range varian dari nilai reproducibility pada setiap parameter batubara.
ANALYSIS OF Ca(OH)2 ADDITION ON GADUNG TUBERS (Dioscorea hispida) USING VISIBLE SPECTROPHOTOMETER Prayuda, Adif; Panggabean, Aman Sentosa; -, Erwin
JURNAL ATOMIK Vol 6 No 1 (2021)
Publisher : Jurusan Kimia FMIPA UNMUL

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Abstract

Penelitian tentang penurunan kadar sianida dengan penambahan Ca(OH)2 pada umbi gadung (Dioscorea hispida) telah dilakukan. Percobaan ini dimaksudkan untuk mendapatkan data penurunan kadar sianida pada umbi gadung dengan cara penambahan Ca(OH)2, memvariasikan pH (keasaman) air rebusan dan lama rendaman umbi gadung. Hasil data ditentukan persentase penurunan kadar sianida pada umbi gadung menunjukkan bahwa perebusan dengan penambahan Ca(OH)2 10 % dan pH 12 diperoleh penurunan kadar sianida pada umbi gadung 18,2533 mg/L. Sianida yang tertinggal pada umbi gadung 5,6967 mg/L dan persentase penurunan 76,21 %. Lama waktu rendaman selama 60 jam diperoleh penurunan kadar sianida 23,1303 mg/L. Sianida yang tertinggal pada umbi gadung 0,8197 mg/L dan persentase penurunan 96,58 %. Kata Kunci : Umbi Gadung, Sianida, Ca(OH)2, Persentase Penurunan
SINTESIS RESIN PENGKHELAT POLYSTYRENE DIVINYLBENZENE-DIMETILGLIOKSIMA DAN KEMAMPUAN ADSORPSI TERHADAP ION LOGAM Ni(II) Darwin, Chepy; Panggabean, Aman Sentosa; Alimuddin, Alimuddin
JURNAL ATOMIK Vol 2 No 1 (2017)
Publisher : Jurusan Kimia FMIPA UNMUL

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Abstract

Penelitian tentang sintesis resin pengkhelat Polistiren divinilbenzena-dimetilglioksima dan kemampuan adsorpsi terhadap ion logam Ni(II) telah dilakukan. Penelitian ini bertujuan mensintesis resin PSDVB-dimetilglioksima. Sintesis resin pengkhelat Polistirene divinilbenzena-dimetilglioksima dilakukan melalui tiga tahap yaitu nitrasi, reduksi dan diazotasi. Pada tahap diazotasi terjadi reaksi kopling antara kation diazonium dengan nukleofil dari dimetilgliokisma yang dilakukan pada suhu 0-3ºC. Karakteristik dilakukan dengan menggunakan metode batch yaitu metode perendaman resin dalam larutan standar Ni(II) dalam waktu 24 jam. Hasil penelitian menunjukkan rendemen dari setiap tahapan sintesis adalah 60,7289%, 95,8940% dan 74,2254%. Resin pengkhelat hasil sintesis dikarakterisasi dengan spektrofotometer FT-IR yang menunjukkan perubahan bilangan gelombang 1350.17 cm-1 dan 1527.62 cm-1 yang merupakan pita serapan dari gugus N-O, bilangan gelombang 3448.72 cm-1 yang merupakan pita serapan dari gugus N-H dan bilangan gelombang 1627.92 cm-1 yang merupakan pita serapan dari gugus azo N=N. Karakteristik adsorpsi resin pengkhelat hasil sintesis terhadap ion logam Ni(II) menunjukkan persentase perolehan kembali mencapai 97,275%.
Co-Authors -, Yasrin Adha, Laila Sufina Adhi Surya Pranata Surya Pranata Adhi Surya Pranata Surya Pranata, Adhi Surya Pranata Surya Adhitya Rinaldi Akhmad Rifani Akkas, Erwin Ali Murtopo Alimuddin Alimuddin - Alimuddin Alimuddin Alimuddin Alimuddin Alimuddin Alimuddin Alimuddin Alimuddin Alya Yuni Maulana Amrina Rosyada Anggun Ridha Avitri Ani Trisnawati Anwar, Adliah Arif, Moh. Syaiful Arifin Syam Surya arifin syam syam Az Zahra, Upi Fathimah Bagus Muliawan Bayu Iskandar Bohari - Bohari Bohari Bohari Bohari Bohari Yusuf Bohari Yusuf Buchari Buchari Buchari Buchari Budiono, May Cahaya, Tentriati Chairul Saleh Darmin - Darwin, Chepy Dirgarini Julia Nurlianta Subagyono Eka Apriska S Kusuma Erwin - Erwin Erwin Erwin Erwin Erwin Erwin Erwin Erwin Erzha, Nutfahryza Fadilah Ramadhani Farida Kristiana Farlianti, Resma Lita Fatimah Islamunisa Filus, Tio Fitriana, Mila Friscylia Friscylia Gaanty Pragas Maniam, Gaanty Pragas Hariati, Hariati Hariati, Hariati Harum Widyastuti Hening Ayu Marinda Hutagalung, Sandi Christopher Idris Mandang, Idris Irviansyah, Alfian Iskandar, Bayu Joni Rahman Josephine Josephine, Josephine Juntia Kirana Pratiwi Khasanah, Manja’a Kumalasari, Anisa Kurniasih, Ririn Feby Kusmiaty, Prilianda Leonardus Lewo Hayon Lianasari, Ika Yekti Lossi Hotmaida Simanjuntak Lumban Gaol Veronica Destiana M. Bachri Amran Manja’a Khasanah Margaretta D. R. N. S Marvin Horale Pasaribu May Budiono Mayang, Julia Agustin Menono, Fera Friskaneke Mila Fitriana Moh Syaiful Arif Muhammad Asfian Nur Muhammad Bachri Amran Muhammad Rizky Muhammad Robiansyah Nanang Tri Widodo Nanang Tri Widodo Nauval Dwi Fadillah Nazaratun Thaiyibah Noor Hindryawati Noor Hindryawati, Noor Nur, Nana Septiana Nurhasanah Nurhasanah Oktavia, Dwina Putri Oktaviani, Reka pakasi, Resy Prayuda, Adif Putri, Amelia Putri, Rinda Anisyah RAHMAT GUNAWAN Rahmat Gunawan Rani Novia Ulya Rida Awliyani Rientha Septiana Rika anggraini Rina Rina Ristia Asri Fidayana Rita Hairani Rudi Kartika, Rudi Rumengan, Nur Khamillah Sadijah Achmad Saepudin Suwarsa Saibun Sitorus Saibun Sitorus Sandi Christopher Hutagalung Sari, Ermalia Lintang Sari, Ika Yekti Liana Sari, Rahma Juwita Septiana, Rientha Shintia Alifah R Soerja Koesnarpadi Soerja Koesnarpadi Subagyono, Dirgarini Julia Nurlianti Subur P Pasaribu Sujito Sujito Teguh Wirawan Teguh Wirawan, Teguh Tentriati Cahaya Tika Widyastuti Tio Filus Trisnawati, Ani Victoria, Stefanie Willem Hendrik G Wirdhaningsih Wirdhaningsih Yasser Arafat Yulianti Kartika Yulieta, Afifah Nur Yusuf, Irfan Maulana