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JC-T (Journal Cis-Trans) : Jurnal Kimia dan Terapannya
Published by Universitas Negeri Malang
ISSN : 25496565     EISSN : 25496573     DOI : 10.17966
Core Subject : Science,
Biochemistry, Genetics & Molecular Biology
JC-T (Journal Cis-Trans) : jurnal kimia dan terapannya is published by Universitas Negeri Malang, Faculty of Mathematics and Science, Chemistry Department.
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 5 Documents
 1 
Search results for , issue "vol. 4 no. 2 (2020)" : 5 Documents clear
Sintesis dan Karakterisasi Seed Keramik Samarium untuk Terapi Solid Kanker Daya Agung S; Witarti; Mujinah; Dede Kurniasih
JC-T (Journal Cis-Trans) : Jurnal Kimia dan Terapannya Vol. 4 No. 2 (2020)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um0260v4i22020p001

Abstract

The development of Samarium-based bioceramics, in the form of a seed, has the opportunity of solidcancers treatment using the brachytherapy method. Brachytherapy is a radiotherapy procedure whereradioactive sources is placed inside to theneo-plastic cancer tissues by implantation. This method canincrease radiation doses on the cancer tissues by applying a tiny radiation source. The ceramic seeds with Samarium-153, is biodegradable and beta-emitter radionuclide, is very likely to replace existing method of brachytherapy using radioactive metal-seeds. The raw material of ceramic seeds with samarium consists of samarium nitrate as samarium precursor and isotope target, calcium nitrate hydrate (Ca(NO3)2.4H2O as filler, and tetraethyl orthosilicate (Si(OC2H5)4 as a additive. Synthesis of ceramic seeds with samarium was conducted by sol gelprocesings, sintering, mixing with Polivynil Alcohol (PVA), molding and combusting. The raw material mixtures of ceramic seeds with samarium is characterized by thermogravimetry analysis (TGA). The morphology of ceramic seed both before and after combustion is analyzed by scanning electron microscope (SEM-EDX) and X-ray fluorescence (XRF). Based on TGA analysis. The raw materials mixtures of the ceramic seeds was decomposed at temperature of 100 oC - 550 oC. 
Aktivitas Ekstrak Kulit Jeruk Manis sebagai Antioksidan dan Toksisitasnya Terhadap Artemia Salina Siti Marfu’ah; Fauziatul Fajaroh; Wildan Alfin Romadhona; Della Dwi Taufina
JC-T (Journal Cis-Trans) : Jurnal Kimia dan Terapannya Vol. 4 No. 2 (2020)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um0260v4i22020p007

Abstract

Antioxidant test of sweet orange (Citrus Sinensis L.) peel extract in ethanol has been carried out.To reduce ethanol waste, ethanol-water was used as the solvent. The extract was tested for its antioxidant activity and toxicity. The purpose of this study was to determine the extract of sweet orange peel on: (1) yield (2) main components (3) antioxidant activity, (4) toxicity. This research was carried out in several stages: macerate sweet orange peel in ethanol (96%), ethanol (96%)-water (2v: 1v), ethanol (96%)-water (1v: 1v), analysis of extract’s main components by GC-MS, test its antioxidant activity with DPPH, its toxicity against Artemia salina. From this research, it was found that for ethanol (96%) extract: yield 2,67%; main components: hexamethoxiflavone, 4H-1-benzopyran-4-on, hexadecanoic acid, octnearrien1-ol, terasiloxane; strong active antioxidant (IC50 = 16,0306 ppm), toxic to Artemia salina (LC50 = 281,1900 ppm). For ethanol (96%)-water (2v: 1v) as solvent: yield 2.61%; main components: sucrose, sorbose, ferulic acid, 9,11,15-octnearrien-1-ol, 9-octadesenamid; strong active antioxidant (IC50 =14.3716 ppm), toxic to Artemia salina (LC50 = 337.2097 ppm). 
Analisis Kandungan Cemaran Logam Berat Kromium pada Anak Sungai Citanduy Kota Tasikmalaya Estin Nofiyanti; Ayu Erviena; Gatut Ari Wardani; Nurcholis Salman
JC-T (Journal Cis-Trans) : Jurnal Kimia dan Terapannya Vol. 4 No. 2 (2020)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um0260v4i22020p015

Abstract

Citanduy is one of the rivers affected by human activities, where the Citanduy tributary in Cigeureung,Cipedes District, Tasikmalaya City, has long been polluted by domestic activities such as batik industry of UKM. This research was to determine the burden of water pollution in the Citanduy tributaries. Sampling was carried out by purposive sampling using the storet method. Sampling was done with a distance of each point as far as 1 km for 3 sampling points, namely Parakanyasag Village coordinate 7017 '46.4 "S 108 ° 13'04.3" E with areas dominated by rice fields without industry. The second point in the Village of Cicariuk at coordinates 7 ° 18'08.9 "S 108 ° 13'07.4" E, this point is the central point of the batik industry in Cigeureung. The third point is in Gg. Buninagara Mosque with coordinates 7 ° 18'42.7 "S 108 ° 12'58.9" E. Laboratory testing results showed that the COD value at first point is 107 mg / L with Cr concentration of 0.007 mg / L, at the second point the COD value is 2 mg / L with Cr concentration of 0.010 mg / L, and the third point COD is 4 mg / L.
Isolasi Lignin dari Sekam Padi (Oriza Sativa L) Serta Pemanfaatanya Sebagai Adsorben Ion Cd(II) Yudhi Utomo; Ernis Nor Fadila
JC-T (Journal Cis-Trans) : Jurnal Kimia dan Terapannya Vol. 4 No. 2 (2020)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um0260v4i22020p019

Abstract

Rice husk is an agricultural waste and contains lignin (20-25%). NaOH, ethanol and acetic acid solvents are commonly used solvents in lignin isolation because they produce sulfur-free and high purity lignin. Lignin has potential as an adsorbent due to the presence of hydroxyl groups and aromatic rings that can bind to metal ions. The purpose of this study was to find out the best solvent in isolating lignin from rice husks, the characteristics of lignin, and the ability of lignin from rice husks as an adsorbent of Cd (II) metal. The quantitative laboratory research conducted was lignin characterization using FTIR and SEM and test the ability of the adorbent to absorb Cd (II) ions using the AAS instrument. Lignin isolated using NaOH solvent is more effective and efficient because it produces large amounts of lignin compared to ethanol and acetic acid. The isolated lignin has an absorption band in the area of 3500-3200 cm-1, namely the O-H stretch and 1600 cm-1, namely the vibrations of the aromatic and has spherical surface morphology in SEM instrumentation. Lignin was applied as a Cd (II) adsorbent and had the greatest adsorption capacity of A and B at a concentration of 2.0 ppm.
Pengaruh Komposisi SiO2/Al2O3 dalam Sintesis ZSM-5 (Zeolite Socony Mobile-5) Bersumber Silika Pasir Pantai Lokal Sumari; Suryani Indah Permatasari; Lailatul Ilmiyah; Fauziatul Fajaroh; Yahmin; Ida Bagus Suryadharma
JC-T (Journal Cis-Trans) : Jurnal Kimia dan Terapannya Vol. 4 No. 2 (2020)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um0260v4i22020p027

Abstract

Beach sand in Indonesia contains high silica crystals in the form of SiO2. High purity silica can be usedas a raw material for zeolite synthesis, one of them is ZSM-5 (Zeolite Socony Mobile-5). ZSM-5 can be used as a catalyst because it has advantages in structure and temperature resistance. Therefore, ZSM-5 is expensive so that if it can be synthesized by ourselves, it is very profitable. The research aims to determine the effect of the composition of SiO2 / Al2O3 in synthesis of ZSM-5 from beach sand silica. The research was done in 3 stages consist of (1) purification of beach sand, (2) extraction of beach sand silica, and (3) synthesis of ZSM-5. The results of the research showed that (1) the purity of extracted silica was 97.2%, (2) the composition of Si87Al9 resulted ZSM-5 better than that of Si89Al7.

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