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All Journal Jurnal Natur Indonesia Teknosains: Media Informasi Sains dan Teknologi SINEKTIKA: Jurnal Arsitektur Jurnal Kimia Mulawarman ARTEKS : Jurnal Teknik Arsitektur Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Akademika Kimia EPI International Journal of Engineering Abdi Dosen : Jurnal Pengabdian Pada Masyarakat JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) Jurnal Pengabdian kepada Masyarakat Nusantara Jurnal Riset Pendidikan MIPA Mattawang: Jurnal Pengabdian Masyarakat Panrannuangku Jurnal Pengabdian Masyarakat Media Eksakta Jurnal Akademika Kimia Jurnal Akademika Kimia
Baharuddin Hamzah
Pendidikan Kimia University Of Tadulako
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Health Professions Library & Information Science Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences Other

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Variasi Konsentrasi Span-80 Dan pH Fasa Eksternal pada Ekstraksi Ion Timbal(II) Dengan Metode Emulsi Membran Cair Djasman, Syamsiar Masgul; Hamzah, Baharuddin; Husnia, Husnia
Jurnal Akademika Kimia Vol 3, No 4 (2014)
Publisher : Universitas Tadulako

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Abstract

A research on the extraction of lead(II) ion has been done using emulsion liquid membrane technique. This research used a laboratory experiment method by using benzoyl acetone as a carrier, paraffin liquid as the membrane, a solution of nitric acid as an internal phase, Span-80 as a surfactant, and lead(II) solution as the sample. This research was conducted to determine the optimum extraction condition of lead(II) ions in solution which includes the span-80 concentration variations (2 - 5%) and the pH of the external phase variations (2 – 4). Determination of the concentration of lead(II) ions in the external phase is done using a Spectro Direct. The results showed that the concentration of span-80 that produces a maximum extraction percentage is 3%. Moreover, the pH of the external phase which produces the maximum percentage extraction at pH 2 with extraction percentage of 74.36%.
Penentuan Kondisi Optimum Ekstraksi Ion Timbal(II) Menggunakan Teknik Emulsi Membran Cair Alam, Syamsu; Hamzah, Baharuddin; Nuryanti, Siti; Nurbaya, Siti
Jurnal Akademika Kimia Vol 3, No 2 (2014)
Publisher : Universitas Tadulako

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Abstract

A research on the extraction of lead(II) ion has been done using emulsion liquid membrane technique. This research used a laboratory experiment method by using benzoyl acetone as a carrier, paraffin liquid as the membrane, a solution of nitric acid as an internal phase, Span-80 as surfactant, and a solution of lead(II) as the sample solution. This research was conducted to determine the optimum extraction condition of lead(II) ions in solution which includes a volume ratio of emulsion to external phase and extraction capacity of lead(II) ion by emulsion liquid membrane technique. The volume ratio of emulsion to external phase used was 1:5, 1:6, 1:7, and 1:8. While the variation of concentration of lead(II) used was 220 ppm, 434 ppm, 695 ppm, and 817 ppm. The determination of the concentration of lead(II) ions in external phase is done by using a spectrophotometer SpectroDirect. The results of this research showed that the volume ratio of emulsion to external phase were in the maximum extraction percentage; 1:6 ratio. Moreover, the concentration of lead(II) were in maximum extraction percentage of 220 ppm with extraction percentage of 56.36%.
Penerapan Pendekatan Contextual Teaching And Learning (CTL) Pada Materi Larutan Penyangga Kelas XI IPA 1 SMA Negeri 1 Poso Pesisir Utara Riyadi, Bayu; Hamzah, Baharuddin; Sakung, Jamaluddin
Jurnal Akademika Kimia Vol 4, No 1 (2015)
Publisher : Universitas Tadulako

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Abstract

The use of learning approach applied to the study of chemistry is still one-way, the student just as a listener and not actively involved in the learning process. This research aims to determine the learning outcomes to the students who take buffer to the grade XI IPA I SMAN 1 Poso Pesisir Utara with contextual teaching and learning approach was better than the grade that follows the learning without contextual teaching and learning approach. The research population was all students of class XI IPA I SMAN 1 Poso Pesisir Utara in academic year 2013-2014 amounted to 65 studets were distributed in to classes. The research sample was determined by purposive sampling, 33 class XI IPA I as the experimental class and 32 class XI IPA 2 as control class. The data collection using test instruments in the form of 18 multiple-choice items that had been tested for validity and reliability. chemistry achievement of buffer test material, research data testing use t-test statistical p-analysis of the parties to the prerequisite test, test for normality and homogeneity tests. The analysis statistical hypothesis t-test was obtained value of tcalculate = 2.41 and ttable value = 1.67 this implies rejection of Ho. It can be concluded that the approach contextual teaching and learning effect on learning outcomes of students of the grade XI IPA I at SMAN 1 Poso Pesisir Utara in the material buffer with a good score than the conventional learning.
EKSTRAK BUNGA WARU (Hibiscus tiliaceus) SEBAGAI INDIKATOR ASAM-BASA Frantauansyah, Frantauansyah; Nuryanti, Siti; Hamzah, Baharuddin
Jurnal Akademika Kimia Vol 2, No 1 (2013)
Publisher : Universitas Tadulako

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Abstract

Hibiscus tiliaceus is a tribe or cottons malvacea, it is known as sea hibiscus. This plant has been known for a long time ago. It is known as a shade tree in the curb or in the edge of the river and as the embankment along the coast. Although, the canopy is not too dense, it is preferred because its roots are not deep into the soil. So, it does not damage the roads and buildings. This study of hibiscus flower extract has been done. It proved that there was indicator acid-base. Hibiscus flower washed with distilled water, cut into small piece, then add dissolved acetate ethyl and macerated. After that, filtered and residue re-extracted filtering results with absolute ethanol. Extract filtered by using gauze filter, then filtered it again with paper filter paper. The filtrate is ready to use as as acid-base indicator. After that, evaluated with benchmark indicators phenolphthalein and orange methyl to titrate acid-base such as: a strong base with a strong acid, a weak base with a strong acid and a strong base with a weak acid. The result of survey revealed that the indicator of hibiscus flower extracts indicate the equivalence point in the titration result equivalent to the comparison indicator. The result showed the indicator of the hibiscus flower extract can as a substitute to synthetic indicator (phenolphthalein and orange methyl) has been used.
Penentuan Kondisi Optimum (Konsentrasi HCl dan Konsentrasi Ion Merkuri) pada Ekstraksi Ion Hg2+ Menggunakan Teknik Emulsi Membran Cair Supriyatno, Tri Octivan; Hamzah, Baharuddin; Said, Irwan
Jurnal Akademika Kimia Vol 6, No 3 (2017)
Publisher : Universitas Tadulako

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Abstract

Study on the extraction of mercury ion had been done using emulsion liquid membrane technique. The aim of this study was to determine the optimum condition on mercury ion extraction in solutions those include variations in concentration of HCl solution (0.5 to 2.5) M and variation in concentration of mercury (15-35) ppm.This study was conducted using laboratory experimental method with benzoyl acetone as cation carrier, kerosene as membrane phase, HCl solution as an internal phase, Span-80 and Span-20 as surfactants, and mercury solution as the sample. Determination concentration of mercury ion in external phase was analysed using UV-Vis spectrophotometer. The result showed that the concentration of HCl solution resulted in the optimum percentage of extraction with the percent extraction of 95.31% was at 2 M. In addition, the concentration of mercury solution resulted in percent optimum extraction of 96.58% was at a concentration of 30 ppm.
Pengaruh Ion Logam Cu(II) Terhadap Persen Ekstraksi Ion Pb(II) Menggunakan Teknik Emulsi Membran Cair Irawati, Dwi Ardi; Hamzah, Baharuddin; Rahman, Nurdin
Jurnal Akademika Kimia Vol 5, No 4 (2016)
Publisher : Universitas Tadulako

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Abstract

This study aimed to determine effect of Cu(II) ion toward percent extraction of Pb(II) ion using emulsion liquid membrane technique. Variation concentrations of Cu(II) added were 0, 50, 100, 150, 200 and 250 ppm with the initial concentration of Pb(II) was 245 ppm. This extraction used benzoyl acetone as a chelating agent. The extraction results were measured by Spectrodirect. The results showed that percent extraction of Pb(II) ion prior addition of Cu(II) ion was 99.09%, but after addition of Cu(II) to a concentration up to 250 ppm, the percent extraction of Pb(II) ions turned to decrease by 97.92%.
EKSTRAKSI ION TEMBAGA(II) DENGAN EMULSI MEMBRAN CAIR MENGGUNAKAN DITIZON SEBAGAI PEMBAWA KATION Hamzah, Baharuddin; Tuljannah, Naima; Diharnaini, Diharnaini
Jurnal Akademika Kimia Vol 2, No 2 (2013)
Publisher : Universitas Tadulako

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Abstract

The research regarding the extraction of copper ions with liquid emulsion membrane has been done. It used a laboratory experiment method by using dithizone as a carrier compound, paraffin liquid as the membrane, a solution of HCl as an internal phase, Span-60 as surfactant, and a solution of copper(II) as the sample solution. This study was conducted to examine the ability of dithizone as a cation carrier and to determine the optimum conditions for the extraction of copper(II) ions in a solution that includes dithizone concentration and copper(II) ion extraction capacity with liquid membrane emulsion technique. The dithizone concentrations used were 0.005 M, 0.010 M, 0.015 M, 0.020 M, and 0.025 M. On the other hands the copper(II) solution concentrations used were 348 ppm, 512 ppm, 689 ppm, 857 ppm, and 1029 ppm. Concentration of copper(II) ion in external-phase was determined by using SpectroDirect Spectrophotometer. The result showed that the use of 0.020 M dithizone, 50 mL of liquid emulsion membrane could extract 857 ppm copper(II) ions with the extract percentage was 84.13%.
PENGARUH ION KROMIUM(III) PADA EKSTRAKSI ION TEMBAGA(II) MENGGUNAKAN EMULSI KEROSEN DENGAN 1-FENIL-3-METIL-4-BENZOIL-5-PIRAZOLON SEBAGAI PEMBAWA KATION Hamzah, Baharuddin; Said, Irwan; Hardani, Ririen
Jurnal Akademika Kimia Vol 2, No 3 (2013)
Publisher : Universitas Tadulako

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Abstract

The influence of chromium(III) ion on copper(II) ion extraction using kerosene emulsion with 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone (HPMBP) as a cation carrier was investigated. The optimum condition for copper(II) extraction were as follows: concentration of mixed surfactant (span 80+span 20) was 5%, volume ratio of kerosene and internal phase was 1, concentration of HPMBP was 0.025 M, concentration of HCl was 1 M, volume ratio of emulsion and external phase was 0.143. The results showed that the extraction of copper(II) ion was selective to chromium(III) ion, relatively. The result also showed that the presence of 500 ppm chromium(III) ion decrease the percentage of copper(II) ion extraction from 98.6 to 91.0.
Arang Eceng Gondok (Eichornia crassipes) sebagai Adsorben Fenol pada Limbah PLTU Palu Tudjuka, Mora Delfita; Walanda, Daud K.; Hamzah, Baharuddin
Jurnal Akademika Kimia Vol 6, No 2 (2017)
Publisher : Universitas Tadulako

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Abstract

This study aims to determine the optimum capacity and weight of water hyacinth aroma to the adsorption capacity of phenol in Palu PLTU waste. The steps taken in this research are a sampling of PLTU waste, making of adsorbent, determination of phenol concentration in PLTU waste and determination of phenol concentration at equilibrium using a Spektrodirect spectrophotometer. The adsorption capacity of water hyacinth at optimum condition of phenol was determined by weight variations of 10, 20, 30, 40 and 50 mg. The resulting result after adsorption process for adsorption weight at the weight of charcoal 10 mg = 82.78%, 20 mg = 89.13%, 30 mg = 85.49%, 40 mg = 79.72% and 50 mg = 74, 42 %. The optimum weight of charcoal in phenol absorb is 20 mg with% phenol which is absorbed 89.13%. The capacity of adsorbent hailing of water hyacinth scent at optimum condition of 3.03 mg phenol/g of adsorbent.
ANALISIS KUALITATIF ZAT BIOAKTIF PADA EKSTRAK DAUN ALPUKAT (Persea americana Mill) DAN UJI PRAKLINIS DALAM MENURUNKAN KADAR GLUKOSA DARAH PADA MENCIT (Mus musculus) Putri, Eska Perdanawati Kahar; Hamzah, Baharuddin; Rahman, Nurdin
Jurnal Akademika Kimia Vol 2, No 3 (2013)
Publisher : Universitas Tadulako

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Abstract

Diabetes is the oldest disease in the world, the death rate cause by diabetes mellitus is increasing. This study aims to know bioactive substances of avocado leaf and effective concentrate in decreasing the level of mice blood glucose. The study apply experimetal method to analyze bioactive substance in avocado leaf extract qualitatively. Whereas the preclinical testing use random group design. This study used 15 male mice as test animal which are induced with etilen diamin tetra asetat (EDTA). The mice are divided into 5 groups (n=5) randomly with different treatment. Treatment I, II, III are given avocado leaf extarct each with concentrate of 10%, 20% and 40%, treatment IV is given suspension of glibenklamid as a positive control (+) and treatment V is given 1% suspension of sodium carboxymethil cellulose (Na-CMC) as a negative control (-). Data obtained is analysed by using statistical analysis of varians (ANOVA) wich is continued with Duncan test. The research result shows that advocado leaf extract positively contains compounds of alkaloid, flavonoid, saponin, tanin and steroid. Praclinic test shows that advocado leaf extract proven can lower the level of mice glucose and relatively the most effective concentrate is 10%.
Co-Authors Abdul Wahid Wahab Afadil Agustin Tiwow Alep, Boni Alizah, Nur Amin, Alif Hidayatullah Anak Agung Istri Sri Wiadnyani Asisa, Nur Azzajjad, Muhammad Fath Baloga, Hendra Bayu Riyadi, Bayu Cica Anisa Daud Karel Walanda Delviana, Delviana Dia Afrianti Sangkota, Vivi Diharnaini Diharnaini Djahir, Ahmad Rifaldi Djasman, Syamsiar Masgul Fadlian, Fadlian Fiskanita, Fiskanita Fitriani, Eva Frantauansyah, Frantauansyah Genefefa T., Fulgensia Hardani, Muhammad F. Hardani, Muhammad Fakhrul HUsnia Mucthar Husnia, Husnia I Gusti Ngurah Antaryama Iffatunniswah Suhud Ihsan Ihsan Irawati, Dwi Ardi Irwan Irwan Irwan Said Jamaludin M Sakung Kadek N. Anjani Laksono Trisnantoro Linawati Linawati Luh Putu Ratna Sundari Magfirah Mangela, Yessika D. Minarni Rama Jura Moh. Yusuf, Moh. Muhammad Awaluddin Hamdy Mustapa, Kasmuddin Nasution, Annio Indah Lestari Ni Luh A. Murtini Noor Jalaluddin Nurdin Rahman Nurhayati Kamaruddin Nurul Jamala Pathuddin Paulus H. Abram Paulus Hengky Abram Poppy Fitra Wahyuni Pulukadang, Sri H. V. Purnama Ningsih Putri, Eska Perdanawati Kahar Rahmawati, Rahmawati Rawal, Andi Resky Reny, Reny Reny, Reny Rezki Rezki Ria Wikantari Ririen Hardani Rosady Mulyadi S, Afadil Sahabuddin Latif, Sahabuddin Sahida Sahida Salsabila, Unik Hanifah Sangkota, Vivi Diah Siti Nurbaya Siti Nuryanti Siti Rabiah Laonu Sitti Aminah Sitti Rahmawati Solfarina, Solfarina Sri Hastuti Virgianti Pulukadang Suhartini Musa Suherman Suherman Sulniawati, Sulniawati Supriyatno, Tri Octivan Suwiyarsa, I Nyoman Tamala, Sindy T. Taupik Hidayat Tiwow, Vanny Maria Agustina Tri Suci Lestari Tudjuka, Mora Delfita Tuljannah, Naima Widya Astuti