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All Journal EKSAKTA: Journal of Sciences and Data Analysis Reaktor Al-Kimia IJCER (International Journal of Chemistry Education Research) Indonesian Journal of Chemical Analysis (IJCA) PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Stannum : Jurnal Sains dan Terapan Kimia
Muhaimin Muhaimin
Chemical Education Of Mathematics And Natural Science Faculty, Universitas Islam Indonesia Jl. Kaliurang KM 14,5, Sleman, Yogyakarta
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Public Health Social Sciences

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 1 
Pengaruh Suhu Hidrolisis Terhadap Kadar Glukosa yang Dihasilkan dari Serat Daun Nanas Muhaimin Muhaimin
Al-Kimia Vol 6 No 1 (2018): JUNE
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.v6i1.4907

Abstract

The purpose of this study was to determine the effect of temperature on glucose levels produced during the process of hydrolysis of pineapple leaves using 0.5M of sulfuric acid catalyst. The temperature used in the hydrolysis process is 30 °C and 120 °C while the time variation used for the determination of glucose is 0.15,45,75,105,135 minutes. The method of glucose analysis used is to use is phenol-sulfuric acid to determine total glucose. The results showed that the highest glucose level was achieved at 120 °C with a concentration of 15.214,49 ppm at 105 minutes. While the lowest glucose levels achieved at a temperature of 30 °C with levels of 399.33 ppm at 0 minutes.
Air Pollution Simulation From Cirebon Power Plant Activity Muhaimin Muhaimin; Eko Sugiharto; Adhitasari Suratman
EKSAKTA: Journal of Sciences and Data Analysis VOLUME 15, ISSUE 1-2, 2015
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/eksakta.vol15.iss1-2.art2

Abstract

Telah dilakukan penelitian simulasi sebaran polutan dari aktivitas PLTU Cirebon dengan menggunakan model gaussian plume. Persamaan gaussian plume digunakan untuk memprediksikan persebaran dan konsentrasi gas polutan di udara. Tujuan dari penelitian ini adalah untuk mengetahui konsentrasi polutan di udara ambien akibat dari aktivitas PLTU dan pemodelan dispersi polutan di udara yang berasal dari dua cerobong asap. Hasil penelitian menunjukkan bahwa konsentrasi maksimum untuk semua parameter masih berada di bawah baku mutu yang telah ditetapkan. Adapun konsentrasi maksimum untuk parameter SOx sebesar 36,89 µg/m3 sedangkan NOx adalah 31,25 µg/m3. Sedangkan simulasi dengan menggunakan dua cerobong asap konsentrasi maksimum SOx sebesar 52,95 µg/m3 dan NOx sebesar 44,86 µg/m3.
Reaction Kinetics in Conversion Process of Pineapple Leaves into Glucose Muhaimin Muhaimin; Beta Wulan Febriana; Septian Arfan
Reaktor Volume 18 No. 3 September 2018
Publisher : Dept. of Chemical Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (585.817 KB) | DOI: 10.14710/reaktor.18.03.155-159

Abstract

Abstract This research aimed to determine the reaction kinetics in the process of hydrolysis of pineapple leaves. The experiment was carried out at the temperature (60, 90, and 120 oC) and variation of acid catalyst concentration (0.1; 0.5 and 1 M) by observation reaction time every 30 min. The kinetics model of hydrolysis reactions of pineapple leaves has shown first order reaction with activation energy value to find the concentration of sulfuric acid successively: 0.1 M; -15420 KJ/mol; 0,5 M; 3173.8 KJ/mol; 1 M; 100.53 KJ/mol. The reaction rate constant which produced the highest glucose level was on the use of sulfuric acid at a concentration of 0.1 M at a temperature of 120 oC with glucose levels produced between 26.366.039 ppm to 155.510.778 ppm with k = 0.0106/min. Keywords: glucose; hydrolysis; kinetic model; pineapple leaves
Pendampingan Manajemen Tatakelola Gula Jawa Jahe Familo Dukuh Ragayudan RT 02 RW 02 Desa Bocor Kecamatan Bulus Pesantren Kebumen Jawa Tengah Rahmadi Yotenka; Muhaimin Muhaimin; Muhammad Muhajir
PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol 5 No 3 (2020): PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Institute for Research and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (414.774 KB) | DOI: 10.33084/pengabdianmu.v5i3.1176

Abstract

This community service aims to improve the management and governance of the home industry of Familo's Ginger Javanese Sugar through training and mentoring marketing management with e-commerce systems. The program of community service activities is carried out through several stages, namely the preparatory stage, the implementation stage, and the evaluation stage. The results achieved through this activity are participants be able to market their products by e-commerce system optimally.
The Application of 5E Learning Cycle Model Towards Students Learning Activities on Salt Hydrolysis Subject Material in Grade XI SMAN 1 Pakem Academic Year 2019/2020 Nisrina Zahira Putri Irawan; Muhaimin Muhaimin; Krisna Merdekawati
International Journal of Chemistry Education Research VOLUME 5, ISSUE 2, October 2021
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijcer.vol5.iss2.art2

Abstract

This study aims to determine whether there is a significant difference between the application of the 5E Learning Cycle model and conventional learning towards learning activities on salt hydrolysis subject material. The type of research used experimental research. The study population was all students of grade XI at SMA Negeri 1 Pakem in the academic year 2019/2020, totaling 5 classes. The research sample used XI MIPA 1 class as the experimental class and XI MIPA 2 class as the control class which was taken by purposive sampling technique. Data collection through non-test techniques in the form of questionnaires and observations. Data analysis techniques on learning activity variables used Parametric Statistics Independent Sample T-Test for observational data and Non-Parametric Statistics for the Mann-Whitney test for questionnaire data. Based on the results of the study, it can be concluded that there is a significant difference between students who take learning with the 5E Learning Cycle model and students who take conventional learning towards learning activities.
Implementation of Make a Match (MaM) Learning Model to the Nomenclature of Common Chemical Compounds on Motivation and Learning Activities of Class X SMA Negeri 1 Turi Academic Year 2019/2020 Mutmainnah; Widinda Normalia Arlianty; Muhaimin Muhaimin; Beta Wulan Febriana
International Journal of Chemistry Education Research VOLUME 6, ISSUE 1, April 2022
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijcer.vol6.iss1.art7

Abstract

The aim of this study is to find out: 1) Determine whether or not there is a significant difference between the implementation of making a match learning model with conventional learning model to the nomenclature of common chemical compounds on learning motivation, 2) Determine whether or not there is a significant difference between the implementation of making a match learning model with conventional learning model to the nomenclature of common chemical compounds on learning activities. This research was experimental research design with Posttest Only Nonequivalent Control Group Design. The population of this study was all class X students of SMA Negeri 1 Turi in the academic year 2019/2020, with a two-class research sample, namely class X MIPA 1 and X MIPA 2. Data of concept for activity variables and learning motivation  taken by non-test methods in the form of questionnaires and observation. Data analysis techniques used the Mann Whitney type non-parametric statistical test for learning motivation variables and the Two Independent Sample T-Test type parametric statistical test for learning activity variables on nomenclature of common chemical compounds. Based on the results of the study, it can be concluded: 1) There was no significant difference between the implementation of make a match learning with conventional learning model to the nomenclature of common chemical compounds on motivation learning of class x SMA Negeri 1 Turi academic year 2019/2020; 2) There were no significant difference between the implementation of make a match learning with conventional learning model to the nomenclature of common chemical compounds on activities learning of class x SMA Negeri 1 Turi academic year 2019/2020. Keywords: make a match, learning motivation, learning activities
Analisis Kadar Logam Fe, Cr, Cd dan Pb dalam Air Minum Isi Ulang Di Lingkungan Sekitar Kampus Universitas Islam Indonesia Yogyakarta Menggunakan Spektrofotometer Serapan Atom (SSA) Nurul Afifah Ismayanti; Freshty Kesumaningrum; Muhaimin Muhaimin
Indonesian Journal of Chemical Analysis (IJCA) Vol. 2 No. 01 (2019): Indonesian Journal of Chemical Analysis
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijca.vol2.iss1.art6

Abstract

Tujuan dari penelitian ini adalah untuk mengetahui kualitas air minum isi ulang yang diperoleh dari depot air minum isi ulang yang berada disekitar kampus UII Yogyakarta berdasarkan pada PERMENKES No. 492/MENKES/Per/IV/2010. Parameter dari penelitian ini adalah berupa parameter fisika yang meliputi: bau, rasa, warna, suhu dan pH. Sedangkan parameter kimia berupa Fe, Cr, Cd dan Pb. Air minum isi ulang diperoleh dari tiga tempat yang berada disekitar Kampus UII Yogyakarta (Lokasi R, V dan K). Metode yang digunakan untuk analisis sampel dalam penelitian ini adalah spektrometri serapan atom (SSA). Hasil penelitian menunjukkan bahwa parameter fisika masih berada di bawah baku mutu untuk ketiga lokasi. parameter kimia menunjukkan adanya parameter Fe yang melebihi standar kualitas air minum yang berasal dari depot R dan K secara berturut-turutsebesar 0,6154 mg/L dan 0,5201 mg/L. Parameter Cr yang ada di sampel air minum yang berasal dari tiga depot telah memenuhi standar kualitas air minum. Sedangkan untuk Pb dan Cd yang berada pada sampel air minum yang diperoleh dari depot R melebihi baku mutu yaitu kadar Pb dan Cd masing-masing sebesar 0,21 mg/L dan 0,0083 mg/L. Sedangkan, parameter Pb dan Cd dalam sampel air minum yang diperoleh dari depot V dan K telah memenuhi standar kualitas air minum
Penentuan Konsentrasi Chemical Oxygen Demand (COD) Dalam Air Limbah Domestik Menggunakan Metode Spektrofotometri UV-Vis Berdasarkan Pada Pengaruh Waktu Refluks Dan Waktu Pengawetan Muhaimin Muhaimin; Renaldy Ajie Prayoga; Endah Eniati
Stannum : Jurnal Sains dan Terapan Kimia Vol 4 No 1 (2022): April 2022
Publisher : Department of Chemistry - Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jstk.v4i1.2866

Abstract

The purpose of determining Chemical Oxygen Demand (COD) in samples of domestic wastewater is to determine the effect of variations in the reflux process time which is set to 0, 30, 60, 90, and 120 minutes as well as with variations in the testing time which are set to 0, 3, and 7 days. Determination of LOD and LOQ using a UV-Vis Spectrophotometer was also carried out and the regression equation y = 0.0003x + 0.0066 with a coefficient of determination (R2) was 0.998 with LOD and LOQ values ​​respectively 40.0416 mg O2/L and 133.4721 mg O2/L. Determination of the effect of reflux time and preservation time on COD levels was carried out statistically, namely the normality test (Kolmogorov-Smirnov Test) and homogeneity test (Levene Test) ending with a two-way ANOVA test with a probability or significance value of the inlet and outlet samples of 0.000 < 0.05 ( ). Reflux time affects COD levels, the longer the reflux time, the higher and more stable COD levels. Preservation time affects the decrease in COD levels, which is the longer the preservation time, the greater the decrease in COD levels.
Co-Authors Adhitasari Suratman Beta Wulan Febriana Eko Sugiharto Endah Eniati Freshty Kesumaningrum Krisna Merdekawati Muhammad Muhajir, Muhammad Mutmainnah Nisrina Zahira Putri Irawan Nurul Afifah Ismayanti Rahmadi Yotenka Renaldy Ajie Prayoga Septian Arfan Widinda Normalia Arlianty