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All Journal Journals Mining Engineering : Bina Tambang Jurnal Periodic Jurusan Kimia UNP Sainstek Jurnal Riset Kimia SEMIRATA 2015 Indonesian Journal of Chemical Science Indonesian Journal of Chemistry JURNAL EKSAKTA PENDIDIKAN (JEP) JURNAL PENDIDIKAN TAMBUSAI Menara Ilmu Jurnal Farmamedika (Pharmamedica Journal) Pelita Eksakta Sainstek : Jurnal Sains dan Teknologi Molluca Journal of Chemistry Education (MJoCE) Hydrogen: Jurnal Kependidikan Kimia PRIMER (Prima Medical Journal) CHEDS: Journal of Chemistry, Education, and Science Jurnal Pijar MIPA MASALIQ: Jurnal Pendidikan dan Sains Menara Pengabdian Jurnal Pengabdian Pada Masyarakat Gudang Jurnal Multidisiplin Ilmu Jurnal Sains dan Kesehatan Jurnal Pendidikan Kimia, Fisika dan Biologi

Edi Nasra

Universitas Negeri Padang

Author-ID : 328556

Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering 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 Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Transportation Veterinary Other

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ANALISIS FORMALIN DALAM SAMPEL IKAN TONGKOL MENGGUNAKAN FLUORAL-P SEBAGAI PENGOMPLEKS SECARA SPEKTROFOTOMETRI UV-VIS Juli Manda Sari; Indang Dewata; Edi Nasra
Jurnal Periodic Jurusan Kimia UNP Vol 5, No 2 (2016)
Publisher : Departemen Kimia FMIPA UNP

Had been observed the research on the analysis of formaldehyde in samples of mackarel tuna using fluoral-p as complexing UV-Vis spectrophotometry. This study aims to obtain optimum conditions and validation of analytical methods and analyze the levels of formaldehyde in the mackarel tuna using fluoral-p as a complexing agent. The method used in this research that UV-Vis spectrophotometry, where formaldehyde is reacted with fluoral-p form compounds 3,5-diacetyl-1,4-dihidrolutidin (DDL) yellow and measured at a wavelength of 412 nm using a UV-Vis spectrophotometer. Phase optimization done of the effect of pH, complexing time and stability of the complex. While the validation phase methods of analysis undertaken include the manufacture calibration curve and linearity, LOD and LOQ, precision test and test accuracy. The results showed that the complex solution of formalin and fluoral-p optimum at pH 4 with a complexing for 75 minutes. Validation of the methods result in the regression equation Y = 0.022x + 0.013 with a correlation coefficient (r) = 0.0989, LOD value of 0.2 ppm and 0.6 ppm LOQ values, and average% recovery was 101.7%. Formaldehyde levels were obtained in samples mackarel tuna originating from the Pasar Lubuk Buaya and SPAR Supermarkets identified containing formaldehyde levels exceed a safe threshold is 6 ppm and 20 ppm.

Sintesis, Karakterisasi dan Aplikasi Karbon Aktif dari Kulit Pisang Muhammad Patly; Edi Nasra; Sri Benti Etika; Umar Kalmar Nizar
Jurnal Periodic Jurusan Kimia UNP Vol 9, No 1 (2020): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Active Carbon from biomassa has been ideal material as absorbent of pollutant chemistry. Banana peel is a biomassa contain about 60% carbohydtrate and its existence is abundant in nature, it causes banana peel is great for making active carbon. This review is combination from some researches about active carbon from banana peel. It aims to comprehend the carbon active synthesis from banana peel, characterization of active carbon and application active carbon as absorbent chemical pollution. The result from this review show characteristic of active carbon as functional groups,crystalline structure, surface morphology, pore size and pore volume, percentage of absoption and absorption capacity of active carbon to pollutant chemistry.

Studi Kopresipitasi Co(II) Menggunakan Kopresipitan Al(OH)3 Secara Spektrofotometri Serapan Atom (SSA) Monika Yulia; Indang Dewata; Edi Nasra
Jurnal Periodic Jurusan Kimia UNP Vol 2, No 2 (2013)
Publisher : Departemen Kimia FMIPA UNP

Has conducted research on the study of coprecipitation Co(II) using copresipitan Al(OH)3 by Atomic Absorption Spectrophotometry. This study aims to find the optimum conditions such as pH coprecipitation, volume of coprecipitan and the volume of nitric acid as eluent and to see efect of Ni(II) to coprecipitation Co(II). Results of analysis using SSA coprecipitation prove that the optimum conditions obtained in a relatively at base pH of the solution that is pH 8, where the condition is colloidal Al(OH)3 formed maximum. At acidic pH colloid formation process is not maximized, while at higher pH colloids formed will dissolve again into tetra hidroksoaluminat ions. Maximum Coprecipitan volume occurs at 12 mL Al3+ 0,2 M, which is the case in vulome maximum absorption of Co2+ 50 mL 1 ppm by 2,0 mmol colloidal Al(OH)3 while at higher volumes there is a reduction of the metal cation uptake due to competition between the Al metal is more electropositive and have fingers ion is smaller than the cations Co(II). The optimum conditions of volume nitric acid as eluent occurred on volume of 1 mL with absorption capacity by Al3 was 0.0905 mg / g, where as in the volume of eluent managed to extract maximum metal cations while the volume is higher dilution solution causes a decrease in the concentration of metal cations soluble in the eluent. The addition of nickel metal ions affect coprecipitation of metal kobalt because cobalt and nickel is a 3d transition which has a tendency of the same characteristic.

PENYERAPAN ZAT WARNA MALACHITE GREEN MENGGUNAKAN KULIT PISANG KEPOK (Musa balbisiana Colla) SEBAGAI BIOSORBEN DENGAN METODE BATCH Riva Silvia; Edi Nasra; Budhi Oktavia; Sri Benti Etika
Jurnal Periodic Jurusan Kimia UNP Vol 9, No 2 (2020): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Biosorption of Malachite green dyes using kepok banana peel (Musa balbisiana Colla) as a biosorbent has been carried out. The purpose of this study was to determine the optimum conditions for absorption of Malachite green by kepok banana peel biosorbent (Musa balbisiana Colla). The method used is the batch method. The variables tested were pH of the solution, concentration, particle size. The wavelength of Malachite green is 618 nm measured by the UV-Vis Spectrophotometer. The results showed that the optimum conditions for absorption occurred at pH 3, a concentration of 100 ppm, and a particle size of 150 μm with an absorption capacity of 8,6778 mg/g. The adsorption isotherm of Malachite green with kepok banana peel (Musa balbisiana Colla) biosorbent tends to follow the Freundlich isotherm with a determinant coefficient (R2) of 0.9996.

PEMBERDAYAAN UMKM DALAM MENINGKATKAN PENDAPATAN MELALUI PRODUKSI SABUN CUCI PIRING DI KECAMATAN BASO Yeniwati Yeniwati; Edi Nasra; Ade Elsa Betavia
Menara Pengabdian Vol. 2 No. 2 (2022): Vol. 2 No. 2 Desember 2022
Publisher : LPPM Universitas Muhammadiyah Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31869/jmp.v2i2.3919

Pelaku UMKM di Kecamatan Baso Kabupaten Agam memiliki keterbatasan pengetahuan dan keterampilan dalam memproduksi sabun cuci piring dengan baik sehingga standar mutu dari produk yang pernah mereka buat belum tercapai.Untuk menyelesaikan permasalahan yang dihadapi oleh mitra pengabdian diberikan solusi melalui pelatihan dan diskusi dengan pelaku UMKM yang ada di Kecamatan Baso Kabupaten Agam dengan praktek, bimbingan dan pendampingan dalam pembuatan sabun cuci piring yang diberi nama Baso Light dengan mendatangkan narasumber- narasumber yang memiliki keahlian dalam membuat sabun cuci piring yaitu dari tim labor kimia Universitas Negeri Padang (UNP). Setelah melakukan kegiatan pelatihan, peserta pelatihan pengabdian yang didonimasi oleh kaum perempuan dari Kecamatan Baso Kabupaten Agam dapat membuat sabun cuci piring sendiri di rumah dengan biaya murah dengan memanfaatkan peralatan yang ada disekitar mereka. Peserta dari kegiatan pelatihan dapat menggunakan sabun cuci piring yang mereka buat untuk keperluan pribadi sehingga mengurangi pengeluaran mereka ataupun dijual ke lingkungan sekitar yang dapat menambah penghasilan sehingga dapat meningkatkan kesejahteraan. Kata Kunci: UMKM, Baso Light, Kesejahteraan

Pengaruh Kecepatan Pengadukan dan Waktu Kontak Terhadap Penyerapan Fenol Menggunakan Adsorben C-SinamalKaliks[4]Resorsinarena Hasil Sintesis Limbah Minyak Kayu Manis (Cinnamomum burmanii) Dewi Kristina; Sri Benti Etika; Edi Nasra; Budhi Oktavia
Jurnal Periodic Jurusan Kimia UNP Vol 11, No 3 (2022): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/p.v11i3.115255

Several industries produce liquid waste that pollutes the environment. The industrial waste produced usually contains phenol. Phenol is included in hazardous waste so that its presence in the environment needs to be considered. To overcome this environmental problem, the adsorption method can be applied using synthesized compounds such as C-CinnamalCalix[4]Resorcinarene (CCCR). CCCR is a derivative of Calix[4]Resorcinarene which can act as a host for cations, anions, and neutral molecules because it has a unique shape that has an active group, which can form hydrogen bonding with phenol solution. the purpose of this study was to determine the optimum conditions with variation in stirring speeds of 50, 100, 150, 200, and 250 rpm and contact times of 45, 60, 75, 105, and 150 minutes. phenol was analyzed using a UV-Vis spectrophotometer (Specord 210). adsorption phenol with CCCR obtained optimum conditions at stirring speeds of 200 rpm with an adsorption capacity of 2.016 mg/g and contact times of 60 minutes with an adsorption capacity of 2.079 mg/g.

Dedradasi Metilen Biru Secara Fotolisis Dengan Katalis Cdots Doping Au Septian Budiman; Hary Sanjaya; Isnaeni Isnaeni; Umar Kalmar Nizar; Edi Nasra
Jurnal Periodic Jurusan Kimia UNP Vol 11, No 3 (2022): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/p.v11i3.115918

The degradation of methylene blue was carried out by photolysis method with the help of a Cdots/Au catalyst. This study aims to determine the optimum concentration of dopen Au for Cdots and the optimum time for degradation of methylene blue with the help of a Cdots/Au catalyst. The photolysis method was carried out in a reactor equipped with 3 15 watt lamps with a UV wavelength of 254 nm. The absorption of methylene blue was measured using a spectrophotometer UV-Vis. The optimum Au dopen results were obtained at a concentration of 25 ppm with a degradation percentage of 39.94% and the optimum time for photolysis degradation was 6 hours of irradiation with a degradation percentage of 70.28%.

Optimasi Adsorpsi Ion Logam Cu2+ dengan Menggunakan Cangkang Telur Ayam Ras Nesya Febi Utami; Edi Nasra; Desy Kurniawati; Umar Kalmar Nizar
Jurnal Periodic Jurusan Kimia UNP Vol 11, No 3 (2022): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/p.v11i3.115915

adsorption is a method of waste treatment that has the potential to remove toxic heavy metals. One of the factors that influence the occurrence of the adsorption process is the presence of a biological material called a biosorbent. The adsorption method is a method of absorbing heavy metal contamination in liquid waste that is very efficient and effective, as well as easy and cheap economically because of the use of biomaterials that are very cheap and can be regenerated. Chicken egg shell contains Calcium Carbonate (CaCO3) of 98.41% and has natural pores of 10,000 to 20,000 so it is estimated that it can absorb solutes. Based on the known mineral composition, chicken egg shells are composed of CaCO3 (98.41%), Ca3(PO4)2 (0.75%), and MgCO3 (0.84%). So it can be seen that chicken egg shells have a high calcium carbonate content, where calcium carbonate is a polar adsorbent. The optimum conditions for each variable in contacting broiler egg shells that have been activated with Cu2+ metal ions are optimum at pH 4, concentration of 250 ppm.

Peningkatan Kompetensi Profesional MGMP Kimia Kabupaten Pasaman Sebagai Pembina Siswa Menghadapi Olimpiade Sains Nasional (OSN) Edi Nasra; Fajriah Azra; Zonalia Fitriza; Riga Riga; M. Iqbal S.G; Tessa Faradilla; Ahmad Raisan R.P
Jurnal Pengabdian Pada Masyarakat Vol 7 No 4 (2022): Jurnal Pengabdian Pada Masyarakat
Publisher : Universitas Mathla'ul Anwar Banten

IMPROVİNG THE PROFESSİONAL COMPETENCE OF MGMP CHEMİSTRY İN PASAMAN REGENCY AS STUDENT COACHES FACİNG THE NATİONAL SCİENCE OLYMPİAD (OSN). Teacher training for National Science Olympiad (OSN) coaches is carried out as an effort to improve the professional competence of the Pasaman Regency Chemistry MGMP to prepare students to take part in competitions at the district and provincial levels. The ability of teachers prior to participating in the training was identified using pre-tests originating from OSN questions for the last five years. The training was carried out through analysis of OSN-K (City/District Level) and OSN-P (Provincial Level) questions for the last 5 years in 5 groups, and each group made written discussions which were compiled into modules that could be used by the trainees to prepare students in their respective schools. After that, discussions on HOTS questions in the fields of Inorganic Chemistry, Organic Chemistry, Physical Chemistry, Analytical Chemistry and Biochemistry were given by the resource persons. At the end of the activity, a final test is given to see the effectiveness of the training. The results of the pre-test and post-test showed an increase in participants' understanding of 23.51. In addition, the response to the activity evaluation questionnaire obtained an average questionnaire of 3.47 (scale 4), which means that the training is in the good category.

Studi Kompleks Assosiasi Pb(II) Menggunakan KI dan Methylene Blue Fadilla Yuri Merti; Edi Nasra; Desy Kurniawati
Jurnal Periodic Jurusan Kimia UNP Vol 12, No 1 (2023): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/p.v12i1.117050

Research has been carried out on the study of the Pb(II) association complex using KI and methylene blue. This study aims to find the optimum conditions for the Pb(II) association complex such as optimum time, Iodidae concentration, pH, and methylene blue concentration. The measurement methods used are UV-Vis spectrophotometry and AAS (Atomic Absorption Spectrophotometer). Pb(II) is reacted with excess Iodidae to form an anion complex (PbI42-). The anion complex formed is then reacted with a methylene blue (MB+) cation complex to form an association complex [MB]2[PbI4]. From the results of the study, it was found that the optimum conditions for the formation of anion complexes (PbI42-) at 2 hours, a concentration of 0.4 M with an absorbance of 0.1069 A at anion wavelength of 266 nm. While the optimum conditions for the association complex [MB]2[PbI4] occurred at a wavelength of 665 nm with an absorbance of 0.6119 A, pH 3 with an absorbance of 0.9675 A and a concentration of 0.0012 % methylene blue with an absorbance of 0.1266 A. The association complex The resulting product was contacted with Pb(NO3)2 at a concentration of 0.01 ppm and was successfully concentrated by obtaining a concentration of 0.6387 ppm and an absorbance value of 0.0092 A. So that a concentration factor of 63.87 times was obtained.

Co-Authors Adam, Wahyu Ade Elsa Betavia Adia Silvani, Mauline Afriani, Reza Ahmad Raisan R.P Aini, Syamsi Ali Amran Ali Amran Alizar Alizar Alizar, Alizar Amrin . Amrin Amrin Amrin Amrin Ananda Putra Ananda Putra Andini, Namira Tri Anjelia, Mariza Annisa Haqqu Azhma Ulya Bahrizal Bahrizal Bahrizal Bahrizal Bahrizal Bahrizal Bahrizal Bahrizal Bastian, Vadianda Benti Etika, Sri Berlian, Syakhinah Berliana Salsabila Budhi Oktavia Burma, Resna Chairunnisa Chairunnisa Chindikia, Ilmy Cynthia Dela Gustika Della Rosalynna Stiadi Desi Kurniawati Deski Beri Deski Pahdinol DESY KURNIAWATI Desy Kurniawati Desy Kurniawati Desy Kurniawati Desy Kurniawati Desy Kurniawati Desy Kurniawaty Deva Indriyani Devi Lestari Dewi Kristina Dewi Meliati Agustini Dini Anggraini, Dini Dony Yulvi Dwi Hartati Dwi Rahma Doni, Deani Edwina Zainal Eka Yusmita Elvina Elvina Fadhilah Fadhilah Fadilla Yuri Merti Fadli, Sukma Bening Fahilatul Syukro Fajriah Azra Fatimah Jora Fatimah Mutiara R, Siti Fatmawati, Rani Fauzan Aulia Akbar Febbi Rahmayuni Febri Andini Putri Fitri Amelia Fitria, Fadhila Geita Yulyan Firel Haqqu, Annisa Hardeli Hardeli Hardeli Hardeli Hary Sanjaya Hary Sanjaya Hary Sanjaya Hayuni, Sri Heditama, Muhammad Raffi Hendrawansyah Putra Hesty Parbuntari Ikhsany, Diva Indang Dewata Isnaeni Isnaeni Jayawarsa, A.A. Ketut Juli Manda Sari Kalmar Nizar, Umar Kasuma Warda Ningsih, Sherly Khairiyah, Ghina Khalisa Khalisa Laura Dwi Rha Hayu Lismawati, Maya M Bachri Amran M. Iqbal S.G Malinda, Tasya Mauline Adia Silvani Melida Selvita Miftahul Khair Minda Azhar Miranda Dwi Putri Gultom Monika Yulia Mufi Nasda Muhamad Daviya Nur Fauzi Muhammad Farhan Muhammad Patly Muhammad Satrio Hutomo Mulia, Melindra Mutia, Nuraini Cut Nandi, Mila Lusy Tri Nesya Febi Utami Nizar, Umar Kalmar Nofri Yuhelman Nugraha, Putri Nur Hafni Hasibuan Nur Meisinca, Dzulhijjah Nuzulia Yona Oktavia Dewita, Febby Oktria, Wandi Patricia, Popi Pebriani Pebriani Pernadi, Niza Lian Pratama, Rafy Putra, Ananda Putri Fatimah Putri Nugraha Putri, Anisa Dwi Putri, Riska Himaylia Putri, Sinta Eka R, Yoanatul Hasanah Raden Mohamad Herdian Bhakti Rahadian Zainul Rahayu, Yanna Rahmad, Nafisah Yulia Rahmatika, Aljumaatul Rahmi, Fathaniah Raviqa Ranti Septiana Ridho Hermawan Riga Riga Riga, Riga Riva Silvia Romy Dwipa Yamesa Away Roza Herlina Sabrina, Joya Saddam Husein, Saddam Sari, Trisna Kumala Satrio Prinandito Septian Budiman Serli, Salsabilla Putri Sherly Kasuma Warda Ningsih Sherly Kasuma Warda Ningsih Sherly Kasuma Warda Ningsih Sintha Hafizhah Yonel Siti Fatimah Mutiara R Sri Benti Etika Sri Benti Etika Suryani, Okta Sutan M Razali Syamsi Aini Syuhada Yurnas Taufik Hidayat Tessa Faradilla Tri Nandi, Mila Lusy Trihanto Setiadi Trisna Kumala Sari Umar Kalmar Nizar Umar Kalmar Nizar Umar Kalmar Nizar Umar Kalmar Nizar Velly, Aglin Visca Alisia Arianti Wandi Oktria Widya Pasema Yeni, Isra Yeniwati Yeniwati Yollafebrisa Wizul Yollafebrisa Wizul Yulia Mona Liza Yusmaita, Eka Yusuf . Zonalia Fitriza Zul Afkar

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