Department of Chemistry: Recent submissions
Now showing items 261-280 of 3020
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Pengaruh Penambahan Carboxymethyl Celullose sebagai Template terhadap Porositas Material Kalsium Silikat
(Universitas Sumatera Utara, 2022)Research has been conducted on the formation of pore calcium silicate material with the addition of Carboxymethyl Cellulose as a template. Synthesis of Calcium Silicate is done by reacting water glass with Carboxymethyl ... -
Pengaruh Penambahan Resin Epoksi Pada Sifat Thermal dan Morfologi Campuran Karet Alam Cair-Aspal
(Universitas Sumatera Utara, 2023)Asphalt is widely used as a road construction material. Thermal and Morphological Analysis of Liquid Natural Rubber-Asphalt Mixture and Epoxy Resin on the Strength Properties of Asphalt has been carried out. Asphalt used ... -
Uji Aktivitas Antibakteri dan Antioksidan dari Ekstrak Metanol Daun Butterbur (Petasites Hybridus) (L) G. Gaertn., B.Mey.&Scherb)
(Universitas Sumatera Utara, 2023)The dry powder of butterbur leaves (Petasites Hybridus) was extracted using methanol as a solvent. The methanol extract obtained was tested for antibacterial activity using the paper disc diffusion method and the antioxidant ... -
Karakteristik Sifat Mekanik, Morfologi, dan Termal Campuran Karet Alam (SIR-10) dan Karet Alam Epoksi dengan Penambahan Bentonit sebagai Bahan Pengisi
(Universitas Sumatera Utara, 2022)Research on the mechanical, morphological, and thermal characteristics of a mixture of natural rubber (SIR-10) and epoxidized natural rubber with the addition of bentonite as a filler has been carried out. The use of C9 ... -
Analisis Sifat Fisikokimia Lemak Babi pada Mie Goreng dan Analisis DNA Babi Menggunakan Polymerase Chain Reaction (PCR)
(Universitas Sumatera Utara, 2022)Lard is used as a component in food or as a food supplement. Simple analytical methods are required in determining lard in adulterated foods. The purpose of this study was to prepare and extract lard from fried noodles ... -
Pembuatan Natrium Karboksimetil Selulosa (Na-Cmc) dari Selulosa Kulit Durian pada Variasi Berat Natrium Kloroasetat Melalui Reaksi Eterifikasi
(Universitas Sumatera Utara, 2023)Durian peel is an agricultural waste that can be used as a source of cellulose which is then modified into sodium carboxymethyl cellulose (Na-CMC). Cellulose was isolated using a combination of two methods, namely the ... -
Analisis Kandungan Logam Besi (Fe), Kadmium (Cd) dan Kromium (Cr) pada Beberapa Merek Krim Pemutih Wajah dengan Spektrofotometri Serapan Atom (SSA)
(Universitas Sumatera Utara, 2023)This research aims to analyze rate of iron, cadmium, and chromium in whitening cream that distributed in Simpang Limun Market, Medan. Sampel preparation in this resarch using wet digestion method.with HNO3 65% : HCl 37% ... -
Analisis Logam, Kadar Partikulat, dan Komposisi dari Debu Emisi Non-Exhaust Pada Jalan Raya (Lokasi : Jl. Sisingamangaraja)
(Universitas Sumatera Utara, 2023)Air pollution caused by motor vehicles has become a serious issue in many urban areas. Emissions from vehicle exhausts have received due attention, but there is another component that also contributes to air pollution, ... -
Analisis Kandungan Logam Kadmium (Cd), Tembaga (Cu) dan Magnesium (Mg) pada Air Minum Isi Ulang dengan Metode Spektrofotometri Serapan Atom (Ssa
(Universitas Sumatera Utara, 2023)Research has been carried out on the analysis of the elemental content of Cadmium (Cd), Copper (Cu) and Magnesium (Mg) in refillable drinking water using the Atomic absorption spectrophotometry (AAS) method. The aim of ... -
Pembuatan Sediaan Gel dari Ekstrak Etanol Daun Salam (Syzygium polyanthum) sebagai Penyembuh Luka Sayat
(Universitas Sumatera Utara, 2023)Bay leaf (Syzygium polyanthum) which is known to be rich in secondary metabolite compounds is known to have benefits for wound healing. Bay leaves that have been mashed are extracted with ethanol solvent until the results ... -
Potensi dan Aplikasi Bacterial Nanocellulose dari Symbiotic Culture of Bacteria and Yeast untuk Kemasan Makanan Aktif
(Universitas Sumatera Utara, 2023)Bacterial nanocellulose films produced using a green and inexpensive approach can serve as a basic material for replacement of plastic-based packaging. Active food packaging leads to extending the shelf life of food and ... -
Karakteristik Sifat Mekanis, Morfologi, dan Termal Komposit Polietilena Berdensitas Tinggi/Karet Alam Sir 10 Hasil Ekstrusi dengan Pengisi Bentonit Alam
(Universitas Sumatera Utara, 2023)Research on the mechanical, morphological and thermal characteristics of High Density Polyethylene/Natural Rubber/PP-g-MA with natural bentonite filler has been carried out. The HDPEIKA/PP-g-MA mixture was blended using ... -
Analisis Senyawa Dietilen Glikol (DEG) pada Sediaan Obat Sirup Anak Menggunakan Kromatografi Gas
(Universitas Sumatera Utara, 2023)Diethylene Glycol is a compound that has high toxicity and is often used in the preparation of children's syrup. Diethylene Glycol is generally used as a stabilizer or antifreeze agent or a follow-up ingredient in additional ... -
Modifikasi Pati Sukun (Artocarpus altilis) Menjadi Pati Ikat Silang Oksalat
(Universitas Sumatera Utara, 2023)Modification of breadfruit starch oxalic was carried out through a cross- linking reaction between breadfruit starch (Artocarpus altilis) and oxalic acid. This research was conducted in two stages, namely isolation of ... -
Impregnasi Mikroenkapsulasi Ekstrak Buah Andaliman (Zanthoxylum acanthopdium) pada Selulosa Bakteri sebagai Kemasan Makanan Aktif pada Daging Sapi
(Universitas Sumatera Utara, 2023)Beef is prone to spoilage due to bacterial growth, requiring active food packaging that can. extend storage time. Using andalimanfruit extract microencapsulated into bacterial cellulose (SB) can increase SB's ability as ... -
Isolasi Pektin Kulit Jeruk Manis (Citrus sinensis) sebagai Gelung Agent pada Sediaan Gel Moisturizer Ekstrak Kulit Pisang Kepok (Musa paradiciasa L.)
(Universitas Sumatera Utara, 2023)Pectin contained in sweet orange peel can potentially be the basic ingredient of gelling agent in preparations that are useful for reducing the impact of environmental pollution. This study aims to determine the effect ... -
Isolasi Pektin dari Kulit Durian (Durio zibethinus) sebagai Gelling Agent pada Masker Gel Ekstrak Biji Alpukat (Persea americana Mill.)
(Universitas Sumatera Utara, 2023)Durian skin is a waste that can be processed into several products in various fields. Durian skin has a pectin content of ±17%. In the cosmetic and food industries, pectin is used as a geller, binder, stabilizer, and ... -
Efektivitas Nanokomposit ZnO/N-Doped Carbon Nanodots sebagai Fotodegradasi Rhodamin B di Bawah Radiasi Sinar UV
(Universitas Sumatera Utara, 2023)The textile industry in Indonesia is experiencing very rapid development. One of the liquid wastes that are usually produced by the textile industry is Rhodamin B. Therefore, a method is needed to degrade Rhodamin B (RhB), ... -
Karakterisasi Morfologi dari Modifikasi Aspal-Plastik dengan Limbah Polistirena (PS) yang Ter Grafting dengan Maleat Anhidrat dan Dikumil Peroksida
(Universitas Sumatera Utara, 2023)This research examines the modification of polymer asphalt with polystyrene (PS) waste which is carried out in two stages. The first stage is the synthesis of PS through two methods, where the first method is dissolving ... -
Efektivitas Nanokomposit ZnO/N-Doped Carbon Nanodots sebagai Material Fotokatalis dalam Degradasi Metilen Biru di Bawah Radiasi Sinar UV
(Universitas Sumatera Utara, 2023)The growth of the textile industry in Indonesia continues to increase every year, which is accompanied by the use of synthetic dyes such as Methylene Blue and accompanied by the disposal of waste directly into water bodies. ...