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NOOR HUBDRYAWATI
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Jurnal Kimia Mulawarman
Published by Universitas Mulawarman
ISSN : 16935616     EISSN : 24769258     DOI : DOI: https://doi.org/10.30872/jkm
Core Subject : Science,
Chemistry
Journal of Kimia Mulawarman is a peer-reviewed, open access journal that publishes original research articles, review articles, as well as short communication in all areas of chemistry, including educational chemistry and applied chemistry.
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 224 Documents
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PENENTUAN KADAR ION Pb 2+ (TIMBAL) DALAM RAMBUT KARYAWAN BENGKEL DI KOTA SAMARINDA Linda Ajang; Bohari Yusuf; Aman S Panggabean
JURNAL KIMIA MULAWARMAN Vol 12 No 2 (2015)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Abstract

Research on the determination of Pb 2+ ions (lead)in hair repair shop employee in the city of Samarinda. This study aims to determine whether there is a relationship between the concentration of lead ions in the workshop employees hair against old age and work. Measurements of Pb 2+ ions (lead) was performed using Atomic Absorption Spectrophotometer (AAS). Hair cut into small pieces, washed, crushed or burned into ashes and homogenized and analyzed by Atomic Absorption Spectrophotometer (AAS). The results obtained from the measurement and analysis of Pb 2+ ions concentration in hair repair shop employee is 0.2193 ppm and 0.3665 ppm lowest to highest. At the workshop employees there is a relationship between age and levels of Pb 2+ ions (lead) in the hair, while there was no correlation between long working white Pb, it’s based on a statistical analysis of the results of the determination coefficient and linear regression. 
Ca-ALGINAT UNTUK ADSORPSI Fe DAN Mn PADA AIR GAMBUT Elliska Murni Harfinda
JURNAL KIMIA MULAWARMAN Vol 18 No 1 (2020)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/jkm.v18i1.844

Abstract

Ca-alginate for the adsorption of Fe and Mn in peat water has been carried out using a batch method. Brownish water color, low pH, and high content of Fe and Mn metals are obstacles in direct utilization of peat water. Peat water treatment can be done by the adsorption method. The stages of this study began with the preparation of the adsorbent by dripping Na-alginate solution into a variety of CaCl2 solution concentrations. Furthermore, the adsorption of peat water was carried out by batch method with variations in the contact time and mass of the adsorbent to get the adsorbent with the highest % removal. The optimal contact time for Fe and Mn adsorption on peat water is 6 hours. The optimal % removal value for the influence of Fe adsorption contact time for Ca-alginate variations of 0.1 M and 0.2 M CaCl2 solution were 20.38% and 21.19%, respectively. The optimal % removal value for the influence of Mn adsorption contact time for Ca-alginate variations of 0.1 M and 0.2 M CaCl2 solution were 30.98% and 41.37%, respectively. The optimal mass of adsorbent for Fe and Mn adsorption in peat water is 0.75 g. The optimal % removal value for the influence of Fe adsorption mass adsorption for Ca-alginate variations of 0.1 M and 0.2 M CaCl2 solution were 79.28% and 21.67%, respectively. The optimal % removal value for the mass effect of Mn adsorption adsorption for Ca-alginate variation of 0.1 M and 0.2 M CaCl2 solution respectively at 24.44% and 26.13%.
STUDY SENYAWA KIMIA DALAM FASE EKSTRAK ETIL ASETAT SIMPLISIA Cinnamomum spp. Secara KCKT dan KG-SM Yatri Hapsari; Partomuan Simanjuntak
JURNAL KIMIA MULAWARMAN Vol 8 No 1 (2010)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Abstract

Cinnamomum burmanii (Nees n’ Th. Nees) Blume, Cinnamomum culilaban (L.) J.S. Presl dan Cryptocarpa massoy (Oken) Kosterm are a rare plant species that grow in Indonesia. Species with this same of genus (Cinnamomum) is a potential in the field of medicine, but the comparison of the composition and concentration of the chemical content  has not been known so their utilization in medical applications is not optimal. Therefore, the research was conducted in order to analyze of chemical compounds in ethyl acetate extracts phase of three plants by chromatography, They were the HPLC (High Performance Liquid Chromatography), and GC-MS (Gas Chromatography Mass Spectrometry) analysis. The analysis was done of the ethyl acetate extract phase in order to identify of chemical compounds which largely composed of essential oils. Based on the results of HPLC analysis, with  using by the reference standards of eugenol showed that in Cinnamomum burmanii and Cinnamomum culilaban (L.) J.S. Presl identified contain of eugenol essential oils, 0.18% and 3.11% respectively. Based on the result of GC-MS analysis, Cinnamomum burmanii was found two components of chemical compounds main with the largest og percentage,  They were sinamaldehid (90.24%) and coumarin (53.46%) compounds. On the Cinnamomum culilaban (L.) J.S. Presl was found four components of chemical compounds main, They were metileugenol (40.68%), verbanone (14.58%), terpinol (8.74%) and spathulenol (8.12%) compounds. Later in the Cryptocarpa massoy (Oken) Kosterm was found three components of chemical compounds main, They were massoyalakton (73.64%), butanoat acid (12.25%) and pentadekanoat acid (9.76%) compounds.
IMPLEMENTASI BAKU MUTU AIR LIMBAH BERBASIS DAYA TAMPUNG BEBAN PENCEMARAN BADAN AIR PENERIMA PADA KEGIATAN PERTAMBANGAN BATUBARA Saibun Sitorus; Binsar Simangunsong
JURNAL KIMIA MULAWARMAN Vol 10 No 2 (2013)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Abstract

This research is based on the fact that many rivers in East Kalimantan are complained to be polluted by coal mining activities even though many rules to protect surface waters are in place and obeyed. To explain why it is happened, an audit is conducted to the regulations and to the implementation of the regulations. Desk audit is carried out to assess whether the regulations about waste assimilative capacity and effluent limitation that are currently endorsed are appropriate or not compared to the TMDL concept. The audit of implementation is carried out to assess whether the regulations are applied thoroughly or not. The results is that the technical regulations to determine the class of water and to allocation waste load are absent.Therefore, many regulations related the water quality based effluent limitation are not implemented properly. Most of effluent limitation refer directly to the national or provincial standards that are usually less stringent than the water quality based standard of the local rivers or small rivers. The case study in Loa Haur River obtains that the waste assimilative capacity of the river is 33.696 ton of TSS/day. The WAC that is allocated to 6 (six) coal mining in the sub basin of Loa Haur is 5 ton/day. The allocation is based on their production capacity. The results of water quality based effluent limitation of coal mining companies in the Loa Haur sub basin is 0.17 ton TSS/day or its concentration of 114.63 mg/L.Keywords: Audit, implementation, polluted coal mining
AKTIVASI BIOCHAR DARI KAYU Macaranga gigantea MENGGUNAKAN ZnCl2 Intan Rizky Amanda; Kandi Putri; Novi Artika; Dirgarini Julia Nurlianti Subagyono; Ari Susandy Sanjaya
JURNAL KIMIA MULAWARMAN Vol 17 No 1 (2019)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/jkm.v17i1.819

Abstract

Aktivasi biochar hasil pirolisis lambat Macaranga gigantea dengan ZnCl2 telah dilakukan. Penelitian ini bertujuan untuk mengetahui karakteristik dari biochar sebelum dan sesudah aktivasi. Tahap yang dilakukan meliputi preparasi biochar dan aktivasi menggunakan ZnCl2 yang selanjutnya dikarakterisasi menggunakan TGA, FTIR dan SEM. Hasil analisa TGA menunjukkan kadar abu (%) biochar sesudah aktivasi (6,38%) lebih besar dibandingkan biochar sebelum aktivasi (1,71%), kadar zat terbang (%) biochar sebelum aktivasi (46,83%) lebih besar dibandingkan biochar sebelum aktivasi (10,29%) dan kadar karbon terikat (%) biochar sesudah aktivasi (66,28%) lebih besar dibandingkan biochar sebelum aktivasi (47,03%). Analisa FTIR biochar sebelum aktivasi menunjukkan adanya gugus –OH, C=C, C-H, C=O dan CN, sedangkan biochar sesudah aktivasi menujukkan adanya gugus C=C dan CO. Analisa SEM menunjukan adanya perbedaan morfologi biochar sebelum aktivasi dengan sesudah aktivasi.
Sintesis Silika Mesopori Sba-15 Dari Abu Daun Jagung (Zea Mays L) Nasri Nasri; R R Dirgarini J. N Subagyono; Rahmat Gunawan
JURNAL KIMIA MULAWARMAN Vol 15 No 1 (2017)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/jkm.v15i1.524

Abstract

The synthesis and characterization of mesoporous silica Santa Barbara Acid-15 (SBA-15) from the ash of corn have been done. SBA-15 was synthesised using the surfactant template method. SBA-15 from corn leaves ash has a surface area of 592 m2 / gram, pore volume of 0.99 cm3 / gram and pore diameter of 3.95 nm with pore size ranging from 4.9 nm - 7.1 nm. The SAXS pattern of the bio-SBA-15 showed three typical peaks of SBA-15 with miller indices [100], [110] and [200]. In the FTIR spectrum of SBA-15, peaks from Si-O-Si, Si-OH and H-O-H from water were observed.
ANALISA Pb 2+ PADA LOBSTER (Panulirus sp) DENGAN METODE ADISI STANDAR SPEKTROFOTOMETER UV-VIS MENGGUNAKAN PENGOMPLEKS DITIZON Bohari Yusuf; Alimuddin -; Siti Nurliana
JURNAL KIMIA MULAWARMAN Vol 11 No 2 (2014)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Abstract

Telah dilakukan penelitian tentang analisa Pb(II) pada lobster (Panulirus sp) dengan metode adisi standar spektrofotometer UV-Vis menggunakan pengompleks ditizon. Penelitian ini bertujuan untuk mengetahui kadar ion logam Pb(II) pada lobster (Panulirus sp) dengan metode adisi standar menggunakan pengompleks ditizon. Analisa kadar ion.logam Pb(II) dengan pengompleks ditizon menggunakan spektrofotometer uv-vis sebelum menggunakan metode adisi standar. Hasil penelitian menunjukkan bahwa kadar ion logam Pb(II) sebesar 0,215 ppm sedangkan pada penelitian menggunakan metode adisi standar kadar Pb(II) sebesar 1,210 ppm.Kata Kunci: Lobster, Adisi Standar, Ditizon, Ion logam Pb(II).
PENURUNAN KADAR ION LOGAM TEMBAGA (CU) PADA LIMBAH CAIR INDUSTRI ELEKTROPLATING MENGGUNAKAN METODE ELEKTRODEPOSISI Tangke Veronika; Bohari Yusuf; Rahmat Gunawan
JURNAL KIMIA MULAWARMAN Vol 16 No 1 (2018)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/jkm.v16i1.415

Abstract

The reduction of copper concentration in the electroplating industry wastewater by electrodeposition method by means of Atomic Absorption Spectrophotometer (AAS). The result of research showed that degradation and is big of elimination percent of copper metal have with the effect of time contact and voltage at optimum hence in getting results of final concentration of iron (Fe) successive plate 4,02 ppm and 2,84 ppm of concentration early 35,86 ppm and elimination percent of exclusion at optimum parameter in getting result successive 88,403 % and 92,069 %. While the results of the final concentration of Aluminium (Al) successive plate 2,38 ppm dan 2,22 ppm of concentration early 35,86 ppm and elimination percent of exclusion at optimum parameter in getting result successive 93,363 % dan 93,814%.
Isolasi Senyawa Kimia Stigmastan-3,5-Diena Yang Mempunyai Daya Toksik Dari Daun Ekaliptus (Eucalyptus Deglupta Blume.) Sari Setianingsih; Rudi Kartika; Partomuan Simanjuntak
JURNAL KIMIA MULAWARMAN Vol 15 No 1 (2017)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/jkm.v15i1.491

Abstract

This study was started by extraction of Eucalyptus deglupta Blume. Using organic solvent (n-hexane, ethyl acetate, ethanol and water) followed by phytochemical screening and toxicity test using Brine Shrimp Lethality Test (BSLT) method. Isolation and identification of chemical compounds contained in the fraction were done by column chromatography and Gas Chromatography-Mass Spectrometry (GC-MS) analysis. Phytochemical screening revealed the presence of alkaloids, flavonoids, steroids and phenolics in the extract. Toxicity test results showed that the ethyl acetate extract was potentially active with LC50 value of 617.95 ppm. The extract was continued to isolation stage and gave fraction EKEA-3.1 with LC50 value of 2759.93 ppm. Identification of chemical compounds in EKEA-3.1 with KG-MS analysis showed that EKEA-3.1 was suspected to be Stigmastan-3,5-diene.
ISOLASI DAN IDENTIFIKASI SENYAWA STEROID DARI KULIT BATANG TUMBUHAN ANDONG (Cordyline fructicosa [L] A. Cheval) Annisa Aisya; Ritson Purba; Saibun Sitorus
JURNAL KIMIA MULAWARMAN Vol 9 No 2 (2012)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Abstract

The isolation of steroid compounds from the bark of Andong plant (Cordyline fructicosa [L] A. Cheval) that come from Samarinda have been done. Their air-dried powdered from bark of Andong plant (Cordyline fructicosa [L] A. Cheval) (250 gram) were extracted by methanol at room temperature (27oC) and fractioned with n-hexane-water (1:1). Separation of steroid compounds in n-hexane fraction by column chromatography with silica gel 60 (35-70 mesh) based on the Isocratic method and produce six fractions, that fractions were 1, 2, 3, 4, 5 and 6 fractions. Fraction 3 gave a blue fluorescent staining that was observed after under UV light and with the Lieberman Burchard produces a green stain, then the fraction 3 was tested for steroid and produces a blue color indicates a positive steroid that has a yield of 0.0536 gram. Purification of the fraction 3 produces greenish-yellow crystals with Rf value of 0.72 with eluent chloroform (100%) while the value of Rf in n-hexane = 0.68 and Rf in ethyl acetate = 0.42. the UV-Vis spectrum of the crystalline isolate results provide absorption at wavelenght of 252 nm, 263 nm and 334 nm. While the result of FT-IR spectrum gives absorption at wave numbers: 689.63; 768.03; 800.79; 901.81; 977.32; 1052.32; 1201.45; 1273.35; 1358.76; 1463.11; 1662.32; 2853.02; 2926.19; 3056.42 and 3456.33. The bark of Andong plant (Cordyline fructicosa [L] A. Cheval) contains steroid compounds.Keywords: Andong (Cordyline fructicosa [L] A. Cheval), Steroid, Isocratic, Isolation

Page 16 of 23 | Total Record : 224

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