Browsing Department of Chemistry by Advisor "Andriayani"
Now showing items 1-20 of 69
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Analisa Kadar Air, Kadar Asam lemak Bebas, Kadar Bilangan Peroksida pada VCO (Virgin Coconut Oil) dari Apotik Sakinah Helvetia secara Gravimetri dan Tritimetri.
(Universitas Sumatera Utara, 2016)Has conducted a study analysis of water content, free fatty acid content, content of peroxide value on vco (virgin coconut oil) from sakinah pharmacies medan helvetia gravimetrically and tritimetric. Of water content ... -
Analisa Kadar Chemical Oxygen Demand (COD) pada Air Limbah Rumah Sakit dengan Metode Titrimetri Refluks Tertutup di Laboratorium Sucofindo
(Universitas Sumatera Utara, 2015)Analysis of the levels of chemical oxygen demand (COD) in wastewater hospitals using closed reflux titrimetric method. Has done heating samples of hospital waste that passes through the refineries for 2 hours at a ... -
Analisa Kadar Nitrogen,Kadar C-Organik, dan Kadar Air dari Tandan Kosong di Pusat Penelitian Kelapa Sawit (PPKS).
(Universitas Sumatera Utara, 2017)Nitrogen content and C-organic levels have been analyzed from empty palm oil bunches. Analysis of nitrogen content by inserting sample into kjedahl flask and then added H2SO4 and selenium mix. Then distillate to a volume ... -
Analisa Kualitatif Formalin pada Beberapa Jenis Ikan Teri (Ikan Teri Nasi, Ikan Teri Medan dan Ikan Teri Jengki) di Laboratorium Kesehatan Daerah Provinsi Sumatera Utara
(Universitas Sumatera Utara, 2017)The use of formalin as a food additive has been prohibited by the ministry of healt as stipulated in The Indonesia Ministry of Health Regulation No.722/MenKes/Per/IX/88. However, in recent years the Indonesian authorities ... -
Bentonit Terpilar TiO2 sebagai Katalis Pembuatan Hidrogen dalam Pelarut Air pada Hidrogenasi Glukosa Menjadi Sorbitol dengan Katalis Nikel
(Universitas Sumatera Utara, 2009)Glucose hydrogenation using water at solvent was happened through two step. First, water was reduced to hydrogen and oxygen gases by TiO2 pillared bentonite. Second, hydrogen that produced was used to reduce glucose into ... -
Esterifikasi Destilat Asam Lemak Sawit menjadi Etil Ester dengan Katalis FeCl3 di Pusat Penelitian Kelapa Sawit Medan.
(Universitas Sumatera Utara, 2016)Has conducted research Esterification Fatty Acid Ethyl Ester distillate become the catalyst FeCl3. The purpose of this study is to utilize fatty acid distillate as a raw material for making biodiesel esterification ... -
Hidrogenasi Glukosa Menjadi Sorbitol dengan Menggunakan Katalis Pd/C dalam Pelarut N-Heksan Kering
(Universitas Sumatera Utara, 2010)Hydrogenation of glucose has been done using molecular hydrogen catalyzed by heterogeneous catalysts Pd/C in N-hexane solvent dried at a temperature of 1600C and pressures of 200 psi (13.52 atm) to produce sorbitol ... -
Identifikasi Senyawa Bentonit Pasir Kucing (Cat Litler) dengan Menggunakan Metode X-Ray Fluorosence (XRF)
(Universitas Sumatera Utara, 2018)An identification of bentonite cat litler compound was done in testing hall and Identification of B Belawan Type of Goods. The methods used are Fourier Transform Infrared (FT-IR) method, wet chemical, and X-Ray Fluorescence ... -
Identifikasi Zat Pewarna Sintetis pada Saus Cabe Naga dengan Metode Kromatografi Kertas
(Universitas Sumatera Utara, 2008)Have been identify the dye synthetic substance in saus cabe naga. To determine the dye synthetic substance done by using paper Chromatography, with volume comparison of isobutanol : ethanol : water is 3 : 2 : 2 as solven, ... -
Impregnasi Fe/Cu pada Material Mesopori Silika Template Metil Ester Risinoleat sebagai Adsorben-Reduktor Kromium (VI)
(Universitas Sumatera Utara, 2024)Chromium is one of the heavy metals that is widely used in industrial activities. Chromium metal (especially hexavalent chromium) has high toxicity. Nowadays, adsorption-reduction technique is the most efficient treatment ... -
Impregnasi Fe/Ni Pada Mesopori Silika Template Metil Ester Risinoleat Sebagai Adsorben Cr6+ Dengan Variasi Penambahan Massa Fe
(Universitas Sumatera Utara, 2025)Chromium, especially Cr6+, is a heavy metal that is often used in industry can pollute the aquatic environment, and has high toxicity for humans, therefore, Cr6+ must be removed from the aquatic environment. Mesoporous ... -
Karbonilasi Metil Oleat dengan Katalis PdCl2/CuCl2 Menggunakan Aerosil sebagai Penyerap Air
(Universitas Sumatera Utara, 2009)A carbonylation of methyl oleate using PdCl2 as catalyst had been carried out by mixing methyl oleate, PdCl2/CuCl2, HCOOH, CH3OH, THF and aerosil to adsorb the water. The mixture was heated at 50o C and stirred for 2 hours ... -
Kinerja Grafit/N-Grafena dan Grafena/N-Grafena sebagai Katoda Sel Baterai Primer
(Universitas Sumatera Utara, 2018)Research about the performance of Graphite/N-Graphene and Graphene/NGraphene as a cathode of primary battery cell was carried out. The purpose of this research is to know the performance of Graphite/N-Graphene and ... -
Modifikasi Tanah Tiruan dari Ampas Ubi Kayu (Mannihot esculenta) Disalut (Coating) Kitosan Sebagai Media Tanam
(Universitas Sumatera Utara, 2015)Penelitian tentang pembuatan media tanam dari ampas ubi kayu telah dilakukan. Tujuan dari penelitian ini adalah membuat tanah tiruan dari ampas ubi kayu yang mengandung pupuk NPK disalut (coating) kitosan. Variasi kitosan ... -
Oksidasi 1,2,3 Propanatriol dengan Molekul Oksigen Menggunakan Katalis Pd/yAl2-O3 dalam Pelarut Air
(Universitas Sumatera Utara, 2009)Telah dilakukan oksidasi terhadap 1,2,3-Propanatriol dengan menggunakan molekul oksigen yang dikatalisis oleh katalis heterogen Pd/γ-Al2O3 dalam pelarut air menghasilkan asam gliserat ( 32,62 % ). Asam gliserat yang terbentuk ... -
Optimasi Grafting Mesopori Silika Template Metil Ester Minyak Jarak Menggunakan 3 Aminopropiltrietoksisilan (APTES) sebagai Adsorben Ion Logam Berat
(Universitas Sumatera Utara, 2024)Research has been carried out on the optimization of mesoporous silica template castor oil methyl ester (MS-TMEMJ) grafting using 3-aminopropyltriethoxysilane (APTES) compound. This study aims to evaluate the optimum time ... -
Optimasi Temperatur Kalsinasi Kalsium Karbonat (CaCO3) dari Cangkang Telur Ayam Ras dan Aplikasinya untuk Adsorpsi Ion Logam Mn2+
(Universitas Sumatera Utara, 2023)Research on temperature variations in calcium carbonate (CaCO3) from eggshells of purebred chickens and their application to the adsorption of Mn 2+ metal ions has been carried out. The adsorption ability of the adsorbent ... -
Pemanfaatan Cangkang Kelapa Sawit dalam Sintesis Mesopori Silika dengan Template Gliserol Menggunakan Metode Sol Gel
(Universitas Sumatera Utara, 2023)Synthesis of silica material from oil palm shells as a source of silica and glycerol as a template has been carried out. Silica was extracted by the alkaline method using NaOH solution. Silica powder obtained is white ... -
Pemanfaatan Limbah Serbuk Kaca Bening sebagai Sumber Silikon (Si)
(Universitas Sumatera Utara, 2018)Has done research about increasing the purity of silicon from magnesiothermic glass with time variation. Clear glass obtained from industrial household waste, it’s clear glass bottles and then washed repeatedly while being ... -
Pembuatan Nanosilikon dari Pasir Alam Kecamatan Tanjung Tiram Kabupaten Asahan secara Magnesiotermik dengan Penambahan Natrium Klorida sebagai Penyerap Kalor
(Universitas Sumatera Utara, 2015)The research of synthesis nanosilicon from natural sand from District Tanjung Tiram Regency of Asahan by magnesiothermic method with sodium chloride as calor absorber have been done. The adding of natrium chloride aims ...