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INDONESIA
JURNAL ATOMIK
Published by Universitas Mulawarman
ISSN : 25490052     EISSN : 25490052     DOI : -
Core Subject : Science, Social, Engineering,
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Environmental Science
Jurnal Atomik (JA) is published twice a year (March and August) by Department of Chemistry, Faculty of Mathematics and Natural Sciences, Mulawarman University. Jurnal Atomik is a media for graduate students of Department of Chemistry to publish their research articles in Chemistry field including Analytical Chemistry, Inorganic Chemistry, Physical Chemistry, Organic Chemistry, and Biochemistry. The research articles that be submitted to Jurnal Atomik have to be approved by Editorial Board and in accordance with the rules of writing approved by Editor of Jurnal Atomik.
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Articles 11 Documents
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Search results for , issue "Vol 3 No 1 (2018)" : 11 Documents clear
UJI FITOKIMIA DAN PENENTUAN AKTIVITAS ANTIOKSIDAN DARI MADU Trigona incisa Gunawan, Rio; -, Erwin; -, Syafrizal
JURNAL ATOMIK Vol 3 No 1 (2018)
Publisher : Jurusan Kimia FMIPA UNMUL

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Abstract

Trigona Incisa honey is flower nectar and pollen are known to have properties that are very good for health used as ingredients or cosmetic. This study aims to determine the content of secondary metabolites and determination of antioxidant activity of honey Trigona incisa which is a natural product that is found. Do fractionation using ethanol, n-hexane and ethyl acetate determination of the content of secondary metabolites was conducted using harbone and antioxidant activity was determined by testing against DPPH free radicals by measuring the absorbance of DPPH (diphenyl -1- using 2,2- picrylhidrazyl) at a wavelength of 517 nm. Phytochemical test results to the fraction of ethanol, ethyl acetate and n-hexane of Honey Trigona incisa. Showed that the alkaloid compounds, Triterpenoid and Flavonoids present in fractions of ethanol and ethyl acetate fraction. Alkaloid contained in n-hexane fraction. The results showed the ethanol and ethyl acetate fractions thought to contain flavonoid, while the antioxidant activity of the ethyl acetate fraction larger than the fraction of n-hexane and ethanol role in this case amounted to 97.00 ppm, 249 ppm and 233.85 ppm. This shows that the ethyl acetate fraction contains more antioxidant components.
PENGGUNAAN ELEKTRODA BESI (Fe), TEMBAGA (Cu) DAN STAINLESS STELL PADA PROSES ELEKTROKOAGULASI LIMBAH SAUS SAMBAL UNTUK MENURUNKAN PARAMETER BOD DAN TSS Purwati, Dewi; -, Alimuddin; -, Erwin
JURNAL ATOMIK Vol 3 No 1 (2018)
Publisher : Jurusan Kimia FMIPA UNMUL

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Abstract

Research on the decline in BOD and TSS from waste chili sauce with electrocoagulation method using electrodes Fe, Cu and stainless stell in decreased amount of BOD and TSS. Conducted to determine the optimum point of each parameter based on the reaction of the electrocoagulation process on waste samples of chili sauce by using a variation of time and variation of voltage. The results obtained show that the effect of time is obtained optimum time of 120 minutes with vigorous optimum voltage of 12 volts to the decreased amount of BOD and TSS, respectively for 10.7577 mg/L and 18 mg/L with the results of successive allowance for 99.17% and 98.36% for electrode Fe and stainless stell. And decreased amount of BOD and TSS respectively for 8.2482 mg/L and 296 mg/L with the preliminary results of a row of 99.36% and 73.09% for the electrode Fe and Cu. With initial values of BOD and TSS each of 1301.4010 mg/L and 1100 mg/L.
PEMANFAATAN AIR ASAM TAMBANG BATUBARA SEBAGAI SUMBER ENERGI LISTRIK ALTERNATIF Fatimah Islamunisa; Bohari -; Aman Sentosa Panggabean
JURNAL ATOMIK Vol 3 No 1 (2018)
Publisher : Jurusan Kimia FMIPA UNMUL

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Abstract

The research about utilizing Acid Mine Drainage (AMD) as source of electrical energy has done. The variables of the observations made in the influence of electrode, number of cells and the working time of the cell. The results showed that the electrode, the number of cells and the working time of the cell affect the potential value of cells. The pair of electrodes of the metal cooper (Cu), Zinc (Zn), Carbon (C) have been varied showed the potential value of the most high by using a pair of electrodes C-Zn amounting to 1.68 V. More the number of cells that are used the higher the potential value that is produced, where the use of cells from 1 until 5 consecutive potential values of the cells produced are 1.57 V; 3.28 V; 4.90 V; 6.57 V; 8.20 V. The working time of the cell the longer it is used the more reduced the potential value of what is produced, where from 0 h, 3 h, 6 h, 9 h, 12 h and 15 h respectively the potential value of the cells produced are 1.63 V; 1.61 V; 1.59 V; 1.57 V; 1.56 V.
STUDI BIOAKUMULASI ION LOGAM Pb DALAM RAMBUT DAN DARAH OPERATOR STASIUN PENGISIAN BAHAN BAKAR UMUM, JALAN SENTOSA, SAMARINDA Sukma Wiratama; Saibun Sitorus; Rudi Kartika
JURNAL ATOMIK Vol 3 No 1 (2018)
Publisher : Jurusan Kimia FMIPA UNMUL

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Abstract

A study about Bioaccumulation of Pb Metal Ion in Hair and Blood of Operator of General Fuel Filling Station, Sentosa Road Samarinda has been conducted. The aim of the study is to determine the accumulation of Pb metal ions levels and the association between the hours of work of gas station operator assumed to be positively correlated and the levels of Pb metal ions in hair as well as in blood. Hair and blood were homogenized and analyzed by Atomic Adsorption Spectrophotometer (AAS). The results displayed that the lowest and highest level of Pb metal ions contained in hair was 0.03 μg/g and 0.07 μg/g, respectively. The highest number found in blood was similar to the level contained in hair, that is 0.07 μg/mL. However, the lowest level was marginally lower with a number 0.01 μg/mL. The coefficient correlation (r) obtained were 0.822 and 0.859 for hair and blood, respectively. These numbers indicate there was a strong positive relationship between working hours of gas station operator and levels of Pb metal ion in hair and blood. This inference was also supported by the results of t test, that is, 0.564. Furthermore,% determinants analysis was also undertaken which result in 82.2% and 85.9% for hair and blood, respectively to strengthen the test result that working hours of gas station operator in Sentosa Road Samarinda was positively associated with Pb metal ion levels in hair and in blood.
ANALISIS KADAR LOGAM Pb, Mn dan KANDUNGAN PROTEIN PADA DAGING UDANG WINDU (Penaeus sp.) YANG DIAMBIL DIPERAIRAN SUNGAI DONDANG KECAMATAN MUARA JAWA Octavianus, Riyan; Kartika, Rudi; Hindryawati, Noor
JURNAL ATOMIK Vol 3 No 1 (2018)
Publisher : Jurusan Kimia FMIPA UNMUL

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Abstract

Research on metal concentration of Pb, Mn and protein content in windu shrimp’s meat (Penaeus sp.) analysis in Dondang river, Muara Jawa have been done. This research is aimed to determine the concentration of heavy metal Pb, Mn and concentration of protein inside windu shrimp based by size and different sampling location. Concentration of heavy metal Pb, Mn and protein are correlated using Least Square method. Concentration of heavy metal Pb and Mn are analyzed by using AAS (Atomic Absorption Spectrophotometry) and concentration of protein are analyzed by using Kjeldahl method. Result of this research is the concentration heavy metal Pb and Mn in sampling point 1 in average concentration are 0.556 mg/L and 0.463 mg/L, sampling point 2 are 0.790 mg/L and 0.738 mg/L, sampling point 3 are 0.876 mg/L and 0.905 mg/L. Concentration of protein in windu shrimp in sampling point 1 in average are 23.4928%, sampling point 2 are 28.1701% and sampling point 3 are 29.1622%. Correlation of concentration of heavy metal Pb and Mn to the concentration of protein in windu shrimp (penaeus sp.) with R = 0.791; r = 0.948.
PEMBUATAN MEMBRAN SILIKA DARI FLY ASH BATUBARA UNTUK PENURUNAN INTENSITAS WARNA DARI LIMBAH CAIR INDUSTRI SARUNG SAMARINDA Pratiwi, Kartika; -, Bohari; Gunawan, Rahmat
JURNAL ATOMIK Vol 3 No 1 (2018)
Publisher : Jurusan Kimia FMIPA UNMUL

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Abstract

Synthesis of silica membrane from coal fly ash to decrease the color intensity of the liquid waste of sarung Samarinda industry has been done. The extraction of silica from coal fly ash by using the sol-gel process, and for silica membrane by using mixture of PVA (Poly Viny Acohol) and PEG (Polyethylen Glycol. Decrease in color intensity were analyzed using UV-Visible Spectrofotometer and the morphology of the membrane was observed by SEM-EDX. Based on the results from the spectrofotometer the concentration of the liquid waste berofe is 52.92 Unit Pt.Co and after decolorization is 25.04 Unit Pt.Co. The result show that decreasing are concentration is 52.68%, and the results the Scanning Electron Microscope (SEM)-EDX on the membrane after decolorization of liquid waste show distribution of pores in the membrane experiencing changes caused by new particles covering membrane be expected from liquid waste, and the elements are C, O, Na, Al and Si.
PENENTUAN DERAJAT ASILASI (DA) DENGAN METODE BASE LINE DARI SINTESIS N-ALDIMIN KITOSAN Soma, Yolanda V. A; Daniel, Daniel; Saleh, Chairul
JURNAL ATOMIK Vol 3 No 1 (2018)
Publisher : Jurusan Kimia FMIPA UNMUL

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Abstract

Determination Degree of Acylation (DA) with the baseline method from the synthesis of N-Aldimin Chitosan was obtained from the acylation reaction between chitosan and acetaldehyde. The formation of N-Aldimin Chitosan is supported by the data of FT-IR spectroscopy in the wave number 3441.01 cm-1 shows the stretching vibration of OH of chitosan and absorption peaks in the area of wave number 1627.92 cm-1 and 1566.20 cm-1 is vibration C=N which identifies the formation aldimine chitosan. Wavenumber 2924.09 cm-1 shows the C-H stretching vibration as evidenced by a wave number 1404.16 cm-1 which is C-H bending and C-O absorption at wavenumber 1087.85 cm-1. Acylation degree (DA) obtained by 81.33%.
UJI TOKSISITAS DAN SIFAT ALELOPATI EKSTRAK ALANG-ALANG (Imperata cylindrica) TERHADAP PERKECAMBAHAN BIJI PADI (Oryza sativa) Kurniati, Triani; Daniel, Daniel; Sudrajat, Sudrajat
JURNAL ATOMIK Vol 3 No 1 (2018)
Publisher : Jurusan Kimia FMIPA UNMUL

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Abstract

Penelitian inibertujuan untuk mengetahui toksisitas dan sifat alelopati ekstrak alang-alang (Imperata cylindrica) terhadap perkecambahan biji padi (Oriza sativa). Sampel kering akar alang-alang dari Kutai Lama dimaserasi menggunakan pelarut etanol dan di fraksinasi menggunakan pelarut n-heksana dan etil asetat. Sampel kemudian di Skrining fitokimia dan uji toksistas dengan metode (Brini Shrimp Lethality Test) BSLT. Fraksi yang menunjukkan nilai LC50 paling rendah kemudian diuji sifat alelopati dan dianalisis dengan GC-MS. Hasil uji skrining fitokimia menunjukkan adanya kandungan alkaloid, triterpenoid dan fenol. Hasil uji toksisitas dengan metode (Brini Shrimp Lethality Test) BSLT menunjukkan bahwa fraksi etanol memiliki toksisitas tertinggi pada larva udang dengan nilai LC50 sebesar 647,5364 ppm. Uji senyawa alelopati dari ekstrak alang-alang dilakukan pada biji padi (Oriza sativa) memiliki pengaruh nyata terhadap perkecambahan biji padi. Analisa kandungan senyawa kimia pada fraksi etanol dari akar alang-alang menghasilkan dua puncak komponen senyawa pada spektra massa yang ditunjukkan dari hasil GC-MS yaitu fenol dan tetradecamethylcycloheptasiloxane. Kata kunci : Alang-alang (Imperata cylindrica), Fitokimia, Toksisitas dan Sifat Alelopati Terhadap Biji Padi
PENURUNAN INTENSITAS WARNA REMAZOL RED RB 133 DALAM LIMBAH BATIK DENGAN ELEKTROKOAGULASI MENGGUNAKAN NaCl Fatimah, Nurul; -, Alimuddin; Gunawan, Rahmat
JURNAL ATOMIK Vol 3 No 1 (2018)
Publisher : Jurusan Kimia FMIPA UNMUL

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Abstract

A decrease in the intensity of dye Remazol Red RB 133 in batik waste with electrocoagulation method using electrodes aluminum and stainless steel has been done. Analysis was performed using a spectrophotometer Visibel. The results showed that the optimum effect of adding NaCl at a concentration 7 g/L with degradation was 84.95% percent, optimum contact time 60 minutes with degradation was 86.36%, stronger optimum voltage 12 Volts with degradation was 94.31% and pH optimum at pH 4 with degradation was 96.86%. Electrocoagulation in optimum condition dye Remazol Red RB 133 produces an average degradation was 96.41%, and electrocoagulation of batik waste obtained an average degradation was 91.38%.
ANALISIS LOGAM Fe, Cu, Pb, DAN Zn DALAM MINYAK PELUMAS BARU DAN BEKAS MENGGUNAKAN X-RAY FLUORESCENCE Supriyanto, Agus; -, Alimuddin; -, Bohari
JURNAL ATOMIK Vol 3 No 1 (2018)
Publisher : Jurusan Kimia FMIPA UNMUL

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Abstract

A research on the analysis of metals Fe, Cu, Pb, and Zn in lubricating oils new Turbolube 32 and used using X-Ray Fluorescence aims to determine the differences in levels of Fe, Cu, Pb and Zn in the lubricating oil of new and used and know their the effect of duration of use of used lubricating oil to elevated levels of metals Fe, Cu, Pb and Zn in compressors operating system F4K-3. Lubricating oils are used to reduce friction and wear two metal surfaces, the existence and the increase of heavy metals in lubricating oils indicated the occurrence of wear and tear on the engine compressor. From the research, it can be concluded the difference between new and used lubricating oil, lubricating oil does not contain metal new Fe, Pb and Zn but contains Cu amounted to 25.36 mg / L. In Used oil contains metals Fe, Cu and Zn with elevated levels of various metals iron (Fe) 6.243 mg / L, metal Copper (Cu) 41.260 mg / L and zinc (Zn) 32 469 mg / L except metals Lead (Pb) there is no difference between New and Used Lubricating Oil is still 0:00 mg / L or below the Lower Limit of Detection XRF 5.3 mg / L. using Simple Linear Regression correlation coefficient lows of iron (Fe) 0913 and the highest zinc (Zn) 0969 this suggests there is a relationship between duration of use of lubricating oil in the compressor with elevated levels of metals iron (Fe), copper (Cu) and Zinc (Zn). Improved metals in used lubricating oil indicates the wear and tear on the compressor engines except metal Lead (Pb) no elevated levels of metals.

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