Undergraduate Theses
Undergraduate Theses
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Persebaran Suspensi-Resuspensi Debu Jalan dan Analisis Konsentrasi Besi, Seng, dan Tembaga dalam Debu Jalan di Tol Belawan
(Universitas Sumatera Utara, 2023)The main sources of non exhaust emissions (NEE) that contribute to road dust are tire wear particles, brake wear, road surface wear and road dust suspension resuspension (RDS). This research is an effort to identify the ... -
Analisis Logam Besi, Aluminium, Kromium Pada Debu dan Pola Persebaran Road Dust Resuspension-Suspension di Tol Belawan
(Universitas Sumatera Utara, 2023)Metal compound in dust and road dust distribution patterns on the Belawan highway. Research was conducted by filtering road dust with a size of 100 mesh and 200 mesh mesh, characterizcharacterized using X Ray Fluorescence ... -
Isolasi dan Identifikasi Golongan Senyawa Flavonoida dari Buah Tumbuhan Butun (Barringtonia Asiatica (L.) Kurz)
(Universitas Sumatera Utara, 2023)One of the plants that can be used for traditional medicine is butun (Barringtonia asiatica (L.) Kurz). The fruit can be used to control scabies, the leaves are commonly used to treat stomach aches and rheumatism and the ... -
Pembuatan Natrium Karboksimetil Selulosa (Na-Cmc) dari Selulosa Pelepah Kelapa Sawit Menggunakan Variasi Perbandingan Pelarut Isopropanol-Butanol
(Universitas Sumatera Utara, 2023)Oil palm fronds as agricultural waste biomass can serve as a source of cellulose that can be modified into Sodium Carboxymethylcellulose (Na-CMC). α-Cellulose was isolated using two methods, a dilute acid treatment using ... -
Sensitivitas Elektroda Termodifikasi Kitosan/Grafena Oksida Tereduksi/Mangan Dioksida dalam Mendeteksi Kolesterol
(Universitas Sumatera Utara, 2023)In this research, chitosan/reduced graphene oxide (rGO)/manganese dioxide (MnO2) modified electrodes have been successful in detecting cholesterol using the cyclic voltammetric method. The addition of manganese dioxide ... -
Sintesis Metil Oleat dengan Menggunakan Katalis H2SO4 dan Alat Pendispersi Homogen pada Suhu Ruang
(Universitas Sumatera Utara, 2023)Synthesis of methyl oleate from esterification of oleic acid with methanol using H2SO4 catalyst and homogeneous dispersing apparatus at room temperature has been carried out based on three parameters, namely, the molar ... -
Sintesis Natrium Selulosa Sulfat dari Tandan Kosong Kelapa Sawit Melalui Reaksi Sulfasi Pada Variasi Pelarut Etanol, Isopropanol, dan 1-Butanol
(Universitas Sumatera Utara, 2023)Isolation of α-cellulose was carried out by adding 3.5% HNO3, 2% NaOH and 2% Na2SO3, 1.75% NaOCl, 17.5% NaOH and 10% H2O2, α-cellulose was obtained at 18.167 g (24.22% of initial weight). Synthesis sodium cellulose sulfate ... -
Sintesis Metil Ester Asam Lemak dari Minyak Jelantah Melalui Tahapan Reaksi Amidasi dan Reaksi Transesterifikasi Menggunakan Peralatan Pendispersi Homogen
(Universitas Sumatera Utara, 2023)The synthesis of fatty acid methyl esters from waste cooking oil was carried out by amidation reaction with monoethanolamine and transesterification reaction using homogenizer. The amidation reaction was carried out on ... -
Analisis Morfologi, Kristalinitas dan Rendemen Grafena Berlapis Nano dari Tongkol Jagung (Zea mays L.)
(Universitas Sumatera Utara, 2023)Research on the analysis of morphology, crystallinity and yield of graphene nano sheets from corn cobs as a starting material using the pyrolysis method has been carried out. The use of corn cobs in this study is because ... -
Sintesis Selulosa Sulfat dari Tandan Kosong Kelapa Sawit Melalui Reaksi Sulfasi Pada Variasi Mol Asam Sulfamat : Urea Menggunakan Pelarut DMSO
(Universitas Sumatera Utara, 2023)Isolation of α-cellulose was carried out with the addition of 3.5% HNO3, 2% NaOH and Na2SO3, 1.75% NaOCl, 17.5% NaOH and 10% H2O2, α-cellulose was obtained as much as 18.167 g (24.22% of the initial weight). Preparation ... -
Sulfonasi Minyak Jarak Kepyar (Ricinus Communis Linn) dan Senyawa Poliol Hasil Epoksidasi dari Minyak Jarak Menggunakan SO3
(Universitas Sumatera Utara, 2023)Sulfonation of castor oil (Ricinus communis Linn) and castor oil polyols has been carried out using a SO3 sulfonating agent obtained from the reaction of concentrated sulfuric acid with phosphorus pentaoxide. The value of ... -
Pembuatan dan Karakterisasi Bioplastik Berbahan Dasar Pati Sukun (Artocarpus Altilis) dengan Variasi Penambahan Kitosan dan Sorbitol
(Universitas Sumatera Utara, 2023)Bioplastics are plastics whose raw materials come from nature and can be degraded by the activity of microorganisms, so they do not pollute when discharged into the environment. Starch is the most widely used raw material ... -
Analisis Varian Pengaruh Suhu dan Konsentrasi terhadap Perubahan Konduktivitas Larutan Asam Asetat (CH3COOH) dan Asam Klorida (HCl)
(Universitas Sumatera Utara, 2023)The investigation about the influence of temperature and concentration on the change of conductivity of electrolyte solution has been performed.The type of utilized electrolyte solution was strong electrolyte of acid ... -
Modifikasi Pati Sukun (A Rtocarpus Altilis) Menjadi Pati Ikat Silang Sitrat
(Universitas Sumatera Utara, 2023)Modification of breadfruir starch citric was carried out through a cross-linking reaction between breadfruit starch (Artocarpus altilis) and citric acid. This research was conducted in two stages, na,nely isolation of ... -
Modifikasi Limbah Plas1ik Polipropilena yang Te rgrafting Maleat Anhidrida dengan Aspal
(Universitas Sumatera Utara, 2023)This research discusses the JJrocess of modifying polymer asphalt with polypropylene ( PP) plastic waste which is carried out in three stages. The first stage is PP purification, by dissolving the polypropylene -i,vaste ... -
Analisis Variasi Rasio Massa Elektrolit NH4Cl, Anoda Cu/Grafena Berlapis Nano dan Katoda Grafena Berlapis Nano pada Prototipe Baterai Primer
(Universitas Sumatera Utara, 2023)Research on Analysis of Variation of Mass Ratio of NH4Cl Electrolyte, Cu/Graphene Nano Sheets Anode and Graphene Nano Sheets Cathode on Primary Battery Prototype was carried out. The aims of this research are to analyze ... -
Uji Efektivitas Kitosan-Nanopartikel Zno Sebagai Antimikroba pada Kemasan Makanan Berbasis Selulosa Bak Teri
(Universitas Sumatera Utara, 2023)Research on the manufacture of antimicrobial food packaging based on bacterial cellulose with chitosan-ZnO nanoparticle antimicrobial coating has been carried out. This study aims to determine the effectiveness of chitosan, ... -
Studi Pembuatan Carbon Black dari Minyak Kelapa dan N-Heksana Menggunakan Metode Lampblack serta Karakterisasinya
(Universitas Sumatera Utara, 2023)Carbon black is a form of impurities from carbon resulting from incomplete combustion of fossil fuels or biomass combustion. This study aims to produce carbon black from a mixture of coconut oil and n-hexane using a cracking ... -
Sintesis Kardanil Asetat Melalui Reaksi Esterifikasi Kardanol Hasil Isolasi Kulit Biji Jambu Mete (Anacardium Occidentale L.) dengan Asetat Anhidrida pada Variasi Molar
(Universitas Sumatera Utara, 2023)Synthesis of cardanyl acetate was carried out through an esterification reaction between cardanol isolated from the shell of cashew nuts (Anacardium occidentale L.) and acetic anhydride. Cardanol isolation was carried out ... -
Pengaruh Adsorben Terhadap Penghilangan Tar dan Kestabilan Penyimpanan Asap Cair Hasil Pirolisis Tempurung Kelapa
(Universitas Sumatera Utara, 2023)Liquid smoke or bio-oil is one of the products produced from pyrolysis of biomass. Liquid smoke contains many organic components that can potentially replace liquid conventional fuels. However,the use of liquid smoke still ...
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