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Budhi Oktavia
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Jurnal Periodic Jurusan Kimia UNP
Published by Universitas Negeri Padang
ISSN : -     EISSN : 23391197     DOI : https://doi.org/10.24036/p.v11i2.113715
Core Subject : Science, Engineering,
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Materials Science & Nanotechnology
Periodic adalah jurnal nasional yang berisi artikel-artikel bidang ilmu kimia, seperti bidang Kimia Analitik, Kimia Fisika, Kimia Anorganik, Kimia Organik dan Biokimia. Jurnal ini mempublikasikan hasil penelitian original, komunikasi singkat, dan artikel review. Artikel yang telah diterbitkan dalam jurnal ini berarti bahwa kegiatan penelitian yang diterbitkan adalah belum, dan tidak akan diterbitkan di tempat lain. Periodic (e-ISSN 2339-1197) diterbitkan oleh Jurusan Kimia dan mulai tahun 2022 disebut Departemen Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Negeri Padang, Indonesia. Periodic terbit berdasarkan berdasarkan surat edaran Direktorat Jenderal Pendidikan Tinggi No. 152/E/T/2012 tentang publikasi karya tulis ilmiah dan terbit sejak Oktober 2012.
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 13 Documents
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Search results for , issue "Vol 8, No 1 (2019): PERIODIC" : 13 Documents clear
KONDISI OPTIMUM PEMBENTUKAN KOMPLEKS ION LOGAM Cr(III) DAN Mn(II) DENGAN 8-HIDROKSIKUINOLIN MENGGUNAKAN SPEKTRONIK Mutiara Oksyarni; Budhi Oktavia
Jurnal Periodic Jurusan Kimia UNP Vol 8, No 1 (2019): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (266.24 KB) | DOI: 10.24036/p.v8i1.105062

Abstract

Industrial development will generate waste containing hazardous chemical substances one of heavy metal. Heavy metals are commonly used are chromium and manganese. Contamination of heavy metals in water is an environmental problem throughout the world because water is a source of life for all living beings .The purpose of this study is to look at the optimum condition of Cr(III) and the ion Mn(II) with oxine as a complexing agent for metal ion analysis using Spectronic. Determination of optimum conditions is to the optimum stirring time variation of the formation of complex compounds, variation the concentration and pH of the sample, then determination the time of stability of the formation of complex compounds. These results indicate that the complex compounds the Cr(III)-Oxinate and Mn(II)-Oxinate produce yellow complex. The optimum stirring time of complex formation of Cr(III)-Oxinate is 20 minutes with the optimum concentration of 20 ppm at optimum pH is pH 6 complex formation and stability of the complex at the time they reach the 40 minute. While Mn(II)-Oxinate have optimum stirring time 15 minutes with the optimum concentration of 15 ppm at optimum pH complex formation is pH 4 and reach a stability of the complex in the 45 minute.
DESAIN FOTOTRANSFOMATOR PLAT TEMBAGA (II) OKSIDA CuO PADA ASAM HUMAT Yuni Aulia Putri Djasli; Rahadian Zainul
Jurnal Periodic Jurusan Kimia UNP Vol 8, No 1 (2019): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (641.501 KB) | DOI: 10.24036/p.v8i1.104121

Abstract

This study was conducted using a phototransformator reactor which was used to degrade humic acid with calcined photocatalyst of CuO plate for 1 hour at 4000C. This reactor was designed in hexagonal form made of glass with a thickness of 3 mm, in this reactor filled with 200 mL of humic acid with the help of sunlight. The phototransfomator process is carried out through a process of degradation of humic acid using a reactor which is performed at 1, 2, 3, 4, 5 hours. Absorption of visible light humic acid before and after degradation is 265 nm. The results show that in the outer light the highest value occurs at 2 hours which is 49.70% Keyword : photocatalyst, photransformator, plate CuO, degradation, %Degradation (%D), humic acid
IDENTIFIKASI FRAGMEN GEN 16S rRNA BAKTERI ASAM LAKTAT UBC-DA-08 DARI DADIH Ike Ramadhanty Daniel; MInda Azhar
Jurnal Periodic Jurusan Kimia UNP Vol 8, No 1 (2019): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (818.721 KB) | DOI: 10.24036/p.v8i1.104886

Abstract

Bacterial identification can be done by phenotypically and genotypes use the 16S rRNA gene. This study aims to determine the species of lactic acid bacteria isolates in Dadih. The first step of identification of bacteria by screening and isolating lactic acid bacteria found in Dadih, then isolate the bacterial isolate chromosome DNA from screening (UBC-DA-08).Bacterial chromosome DNA was used as a template for amplification of the 16S rRNA gene using the PCR method.Amplikon was electrophoresed using agarose gel and purified for sequencing.Sequencing of the 16S rRNA gene was carried out using the Dideoxy-Sanger method.Sequencing bases of nucleotide sequences were analyzed using the DNAStarprogram.The 16S rRNAgene size ofthe UBC-DA-08 bacterial isolate consisted of  896 bp (base pair).The nucleotide sequence of the 16S rRNA gene can be read using the BLASTn andMEGA programs.The results of  identification of  UBC-DA-08 bacterial isolates were lactic acid bacteria including the Lactococcuslactis groupKeyword :Dadih, Lactic Acid Bacteria, Gene 16S rRNABacterial identification can be done by phenotypically and genotypes use the 16S rRNA gene. This study aims to determine the species of lactic acid bacteria isolates in Dadih. The first step of identification of bacteria by screening and isolating lactic acid bacteria found in Dadih, then isolate the bacterial isolate chromosome DNA from screening (UBC-DA-08).Bacterial chromosome DNA was used as a template for amplification of the 16S rRNA gene using the PCR method.Amplikon was electrophoresed using agarose gel and purified for sequencing.Sequencing of the 16S rRNA gene was carried out using the Dideoxy-Sanger method.Sequencing bases of nucleotide sequences were analyzed using the DNAStarprogram.The 16S rRNAgene size ofthe UBC-DA-08 bacterial isolate consisted of  896 bp (base pair).The nucleotide sequence of the 16S rRNA gene can be read using the BLASTn andMEGA programs.The results of  identification of  UBC-DA-08 bacterial isolates were lactic acid bacteria including the Lactococcuslactis group. Keyword :Dadih, Lactic Acid Bacteria, Gene 16S rRNA

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