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All Journal VALENSI Jurnal Penelitian Saintek Reaktor JURNAL KIMIA SAINS DAN APLIKASI Chem Info Indonesian Journal of Mathematics and Natural Sciences Program Kreativitas Mahasiswa - Penelitian INDONESIAN JOURNAL OF PHARMACY Indonesian Journal of Chemical Science Indonesian Journal of Chemistry Molekul: Jurnal Ilmiah Kimia Bantara Journal of Animal Science Greensphere: Journal of Environmental Chemistry International Journal of Renewable Energy Development
Nor Basid Adiwibawa Prasetya
Department Of Chemistry, Faculty Of Science And Mathematics, Diponegoro University Jl. Prof. H. Soedarto SH Tembalang, Semarang 50275, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Immunology & microbiology Materials Science & Nanotechnology Mathematics Medicine & Pharmacology

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Journal : JURNAL KIMIA SAINS DAN APLIKASI

 1 
Identifikasi Asam Lemak Penyusun Minyak Biji Karet (Hevea Brasiliensis) Menggunakan GC-MS Ismiyarto, Ismiyarto; Prasetya, Nor Basid Adiwibawa; Wibawa, Pratama Jujur
Jurnal Kimia Sains dan Aplikasi Vol 6, No 2 (2003): Volume 6 Issue 2 Year 2003
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2060.536 KB) | DOI: 10.14710/jksa.6.2.19-21

Abstract

Isolation of rubber seed (Hevea brasiliensis) oil have carried out by using soxhlet extraction with n-hexane as solvent. This research have been determined of fatty acid composition of rubber seed oil. Separation of free fatty acid from triglyceride done by ethanol 96 %. The oil phase was analysed by gas chromatography - mass spectrophotometer. It was resulted five chromatogram peaks of fatty acid methyl ester, there are methylester from palmitic acid (9.12%), linoleic acid (44.69 %), elaidic acid (44.69 %), stearic acid (8.89 %>) and 11,14-eicosadienoic acid (5.30 %) respectively.
Identifikasi Senyawa Penyusun Minyak Kulit Batang Kayu Manis (Cinnamomum cassia) Menggunakan GC-MS Prasetya, Nor Basid Adiwibawa; Ngadiwiyana, Ngadiwiyana
Jurnal Kimia Sains dan Aplikasi Vol 9, No 3 (2006): Volume 9 Issue 3 Year 2006
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (259.775 KB) | DOI: 10.14710/jksa.9.3.81-83

Abstract

The steam-distilled volatile oil of the cinnamon bark (Cinnamomum cassia) has been analysed by gas chromatography – mass spectrophotometer (GC-MS). It was resulted three chromatogram peaks, there were identified as cinnamaldehyde (91.18 %), eugenol (7.64 %) and cinnamyl acetate (1.18 %) respectively.Keywords: Cinnamomum cassia, GC-MS, Cinnamadehyde, eugenol, cinnamyl acetate
Synthesis, Characterization of Ag2s from AgCl Waste of Argentometry Titration with Heating Temperature Variations and Its Application as a Temperature Sensor Based on Negative Temperature Coefficient (NTC) Gunawan Gunawan; Sarahtrinita Glikeria Like Megawati; Nor Basid Adiwibawa Prasetya; Roni Adi Wijaya
Jurnal Kimia Sains dan Aplikasi Vol 25, No 8 (2022): Volume 25 Issue 8 Year 2022
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jksa.25.8.292-299

Abstract

Synthesis of Ag2S from AgCl waste of argentometric titration with heating temperature variations as a temperature sensor has been done. This study aims to synthesize Ag2S and examine the effect of heating temperature on crystal quality and electrical characteristics as a temperature sensor based on the Negative Temperature Coefficient (NTC). Ag2S synthesis was carried out by precipitation in a water bath with various heating temperatures of 40°C, 60°C, and 80°C. The success of the synthesis was confirmed by X-Ray Diffraction (XRD) with a typical peak of 2θ from Ag2S standard at 29.07°, 31.60°, 36.97°, 37.81°, and the highest crystallinity was obtained at a heating temperature of 60°C. Meanwhile, UV-Vis Diffuse Reflectance Spectroscopy (DRS UV-Vis) showed a band gap corresponding to Ag2S (0.9-1.05 eV). Furthermore, the Ag2S powder was made into pellets and applied as a temperature sensor. Then the resistance value and the electrical characteristics of the resulting sensor were measured. The best resistance was obtained from Ag2S synthesized at a temperature of 60°C with constant (B) and sensitivity (α) values of 2974 K and −3.35%, respectively. This indicated that Ag2S had been successfully synthesized, and the best sensor quality was obtained from Ag2S heated at a temperature of 60°C.
Co-Authors Abdul Haris Andri Cahyo Kumoro Anugrah Ricky Wijaya Arif Sony Wibowo Asep Muhamad Samsudin, Asep Muhamad Asy’ari, Mukhammad Ayub Indra Azis Amrullah Choiril Azmiyawati Choirunnisa, Nur Fadilla Damar Nurwahyu Bima Daud Samsudewa Didi Dwi Anggoro Drs. Abdul M.Si Haris Drs. Gunawan M.Si. Eka Pratista Enny Fachriyah Gunawan Gunawan Gunawan Gunawan Hacker, Viktor Hendra Dwipa Rifky Mahardika Heru Susanto Ina Noprastika Ismiyarto Ismitarto Ismiyarto Ismiyarto Kartika, Nur Hafidzah Devi khabibi Khabibi Khoirun Nita Ulfia Limpat Nulandaya Liswinda Zafirah Rahmatia Mohd Hafiz Dzarfan Othman Muhammad Cholid Djunaidi Mumtazati, Qonita Nandhirabrata, Raditya Nanik Wijayanti Nasher, Kharissa Ngadiwiyana M.Si. S.Si. Nies S. Mulyani Nies Suci Mulyani Niken Windi Saputri Nissa Nurfajrin Solihat Nur Asih Setyowati Nur Rokhati Nurwarrohman Andre Sasongko Pandelaki, Elmi Christi Julia Parsaoran Siahaan Pratama Jujur Wibawa Purbowatiningrum Ria Sarjono Retno Ariadi Lusiana Riska Marina Anggraini Roni Adi Wijaya Roschger, Michaela Salsabila, Salsabila Saputry, Agriccia Pangestica Sarahtrinita Glikeria Like Megawati Sri Wuning Tri Windarti Triwijayanti, Yunita Tutuk Djoko Kusworo Wahyudi, Dhiky Yosie Andriani Yulia Milarsih