Browsing Skripsi Sarjana by Submit Date
Now showing items 1-20 of 216
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Pengaruh Perendaman Serbuk Kayu Kelapa Sawit dengan Monokloroasetat Terhadap Sifat-Sifat Mekanik dan Sifat-Sifat Fisis Papan Partikel
(Universitas Sumatera Utara, 2017)The effect of immersion palm powder with monochloroacetic acid to mechanical and physical properties on particle board aims to determine how the effect of submergence on particle board and manufacture optimum composition ... -
Uji Aktivitas Antibakteri Ekstrak Metanol dan Fraksi Kloroform dari Daun Pulai (Alstonia scholaris R.Br)
(Universitas Sumatera Utara, 2017)Pulai leaves powder was extracted by maceration using methanol for 24 hours. The extract obtained is then extracted with chloroform for 24 hours. Screening test of methanol leaves extracts pulai showed positive results ... -
Sintesis Selulosa Sitrat dari Selulosa Tongkol Jagung (Zea mays L) Melalui Reaksi Esterifikasi dengan Asam Sitrat Sebagai Pengadsorpsi Ion Tembaga (Cu2+) dan Kadmium (Cd2+)
(Universitas Sumatera Utara, 2017)Synthesis cellulosa citrate from cellulosa isolated from corn cobs, then esterified using citric acid. The citric cellulosa tested cluster functions with FT-IR. Formed cellulosa citrate demonstrated their vibration force ... -
Pengaruh Jenis Basa pada Proses Netralisasi Terhadap Minyak Sawit Merah di Pusat Penelitian Kelapa Sawit PT. Rispa
(Universitas Sumatera Utara, 2016)Research on the influence of the type alkaline neutralization in red palm oil in Palm Research Center PT.RISPA , has made the process of neutralization of red palm oil by using strong bases ie 10% NaOH , KOH 10 % , and ... -
Oksidasi Hidrogel yang Dihasilkan Dari Selulosa Tongkol Jagung (Zea mays L) Menggunakan Tempo
(Universitas Sumatera Utara, 2017)Research on the oxidized cellulose hydrogel from corncobs (Zea mays L) using TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyl) have been done. It was conducted in three stages : process isolating α-cellulose form corncobs, ... -
Uji Toksisitas Minyak Atsiri Serai Wangi (Cymbopogon nardus L. Rendle.) dengan Metode Brine Shrimp Lethality Test (BSLT)
(Universitas Sumatera Utara, 2017)Conventional medications cause many side effect symptoms. The use of medical plants as an alternative medication increases sharplynow because it is easy to access both on price and availability. Citronella (Cymbopogon ... -
Uji Aktivitas Antioksidan dan Antibakteri Ekstrak Metanol Daun Tumbuhan Loning (Pisonia Umbellifera(J.R. Forst & G. Forst.) Seem).
(Universitas Sumatera Utara, 2016)Phytochemical screening, antioxidant and antibacterial test was activity carried out on the methanol extract from loning leaves plant (Pisonia umbellifera (J.R. Forst & G. Forst) Seem.). The powder of loning leaves plant ... -
Karakterisasi Film Komposit Polikaprolakton / Resin Epoksi
(Universitas Sumatera Utara, 2016)The research ingredients characterization studies composite film polycaprolactone / fiber epoxy. Where filming begins mixing with solvents and sulfuric acid (H2SO4 (P)) and then heated on a hot plate while on the stirrer ... -
Analisis Kadar Unsur Besi (Fe), Magnesium (Mg) dan Kalsium (Ca) pada Air Minum dalam Kemasan (AMDK) dengan Metode Spektrofotometri Serapan Atom (SSA)
(Universitas Sumatera Utara, 2016)Water is a natural resource that can be renewed, but the water can easily be contaminated by human activity. Entry of heavy metals and metallic minerals that exceed the limits role in water resources causing pollution to ... -
Analisis Kadar Karbon, Nitrogen, Fosfor, dan Kalium dari Tempe Busuk di Pasar Setia Budi Medan
(Universitas Sumatera Utara, 2016)Telah dilakukan penelitian mengenai penentuan kadar C-Organik, Nitrogen, Posfor dan Kalium pada Tempe Busuk dengan hari pembusukan 1,3,4 dan 6 hari. Pada penelitian ini didahului pengambilan sampel tempe busuk di pasar ... -
Pengaruh Degradasi Termal Polivinil Klorida Terhadap Nilai Konduktivitas
(Universitas Sumatera Utara, 2016)PVC merupakan polimer komersial yang banyak penggunaannya, akan tetapi bila ditinjau dari nilai konduktivitasnya rendah dan bukan merupakan suatu konduktivitas yang baik. Tujuan penelitian ini adalah untuk memperoleh ... -
Analisis Kandungan Timbal (Pb) pada Permen dan Bungkus Permen yang Sering Dikonsumsi oleh Anak-anak Kecil Secara Spektroskopi Serapan Atom (SSA)
(Universitas Sumatera Utara, 2016)Telah dilakukan penelitian kandungan timbal (Pb) pada permen dan bungkus permen. Permen ini sering dikonsumsi oleh anak-anak kecil. Sampel diambil dari sebuah minimarket. Sampel berupa permen dan bungkus permen. Sampel ... -
Kinerja Elektroda Besi (Fe) /Grafena Berlapis Nano pada Anoda Baterai Primer
(Universitas Sumatera Utara, 2019)Research on Performance of Electrode Iron (Fe) /Graphene Nano Sheets on Prymarry Battery Anode a was carried out. The Purposes of this research are to know and evaluate performance of Graphne Nano Sheets (GNS) and Fe/GNS ... -
Kinerja Elektroda Baterai Primer Berbahan Non-Logam (Grafit/Grafena, Grafit/N-Grafena dan Grafena/N-Grafena)
(Universitas Sumatera Utara, 2019)Research on the performance of Graphite Graphene, Graphite/N-Graphene and Graphene/N-Graphene as electrodes at the cathode as primary has been done. The purpose of this study are to find out how to prepare electrodes on ... -
Elektrolisis Limbah Cair Industri Pelapisan Logam dengan Menggunakan Elektroda Karbon untuk Menurunkan Kadar Logam Kromium (Cr), Zink (Zn), dan Kadmium (Cd)
(Universitas Sumatera Utara, 2019)The liquid waste of the metal coating industry contains dangerous and toxic metals so that the concentration must be reduced before being discharged into the water. The chemical method commonly used is by adding Poly ... -
Pembuatan Hidrogel Semi Jaringan Polimer Interpenetrasi dari Mikrokristalin Selulosa Sekam Padi
(Universitas Sumatera Utara, 2019)Researched on the preparation of semi interpenetrating polymer network hydrogel based cellulose of microcrystallyn cellulose from rice husk with crosslinking method through modification of formation interpenetrating polymer. ... -
Studi Interaksi Li/Grafena Berlapis Nano dan Na/Grafena Berlapis Nano Menggunakan Difraksi Sinar-X
(Universitas Sumatera Utara, 2019)Research about interaction study of Li/Graphene Nano Sheets and Na/Graphene Nano Sheets analyzed with X-ray difraction has been done. The purposes of this research are to know the interaction between Li and Na on Graphene ... -
Campuran Garam Pb dan Fe Terlarut Turunan Abu Vulkanik Gunung Sinabung Mengkatalisis Esterifikasi 1,2-Propanadiol dengan Asam Palmitat
(Universitas Sumatera Utara, 2019)One of the.ester has been sybthesized from esterification 1,2-propanediol with palmitic acid using catalyst Pb and Fe mixed salt from volcanic ash from Mount Sianbung. The mashed volcanic ash reacted with aquaregia solution ... -
Pengaruh Penambahan Kitosan Terhadap Porositas Kalsium Silikat Sekam Padi yang Digunakan Sebagai Adsorben Asam Lemak Bebas Minyak Kelapa Sawit
(Universitas Sumatera Utara, 2019)Research has been conducted on the formation of calcium silicate rice husk pores with and without the addition of chitosan as a template. Sodium silicate obtained from rice husk is added to the chitosan solution and ... -
Sintesis Basa Schiff dari Hasil Kondensasi Pati Dialdehid dengan Dietilentriamin Serta Uji Aktivitas Antibakteri
(Universitas Sumatera Utara, 2019)Synthesis of Schiff bases have been made through a condensation reaction of dialdehyde starch which has the highest degree of oxidation with diethylene triamine as a source of primary amines. Dialdehyde starch is obtained ...