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All Journal PROSIDING SEMINAR KIMIA JURNAL PHOTON Mejuajua JOURNAL OF CHEMICAL NATURAL RESOURCES (JCNaR)
Zul Alfian
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Nursing Physics Public Health Other

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INVESTIGASI LABORATORIUM : DETEKSI NIKOTIN DARI AIR LUDAH PEROKOK AKTIF Muhammad Taufik; Zul Alfian; Boby Cahyady; Endang Susilawati; Afniwati Afniwati; Mariany Razali; Nurul Fadillah Lubis
PROSIDING SEMINAR KIMIA Prosiding SNKT Himpunan Mahasiswa Kimia FMIPA UNMUL 2021
Publisher : PROSIDING SEMINAR KIMIA

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Abstract

Deteksi nikotin dari Air Ludah Perokok Aktif membutuhkan investigasi dan analisis Laboratorium yang akurat dan dapat dipercaya. Ludah Perokok Aktif dijadikan sampel untuk membuktikan seseorang apakah pengguna rokok mengandung nikotin ataupun tidak. Metode Purposif sampling dilakukan dengan melibatkan 5 (lima) orang PerokokAktif. Prosedur diawali dengan pengumpulan sampel masing masing sebanyak 10 ml. Preparasi dan ekstraksi dilakukan untuk mempermudah molekul nikotin terpisah dari Air Ludah. Proses maserasi coupling sonikasi dilakukan selama 15 menit, setelah nikotin terpisah, dilakukan analisis kualitatif meliputi spot test menghasilkan warna orange dan Kromatografi Kertas dengan nilai Rf sebesar 0,25. Analisis Kuantitatif dilakukan menggunakan Spektroskopi UV-Vis Pada Panjang gelombang 260 nm menghasilkan nikotin untuk masing masing sampel 1, 2, 3, 4, dan 5 masing masing sebesar : 0,5, 1,0, 1,5, 2,1, dan 0,5 ppm. Validasi metode menghasilkan nilai akurasi sebesar 107%. Pada presisi menghasilkan nilai SD : 0,000968 dan RSD : 0,19%. Untuk linearitas menghasilkan persamaan garis y = 0,0094x + 0,0313 dan R2= 0,9968. LOD = 0,0841 ppm dan LOQ = 0,2806 ppm. Karakterisasi menggunakan Fourier Transform Infrared (FTIR) menunjukkan bahwa terdapat nikotin pada sampel air ludah yang ditandai dengan adanya gugus OH terdapat pada bilangan gelombang 3296 cm-1, gugus C-H pada bilangan gelombang 2844 cm-1, gugus CH3 pada bilangan gelombang 1453 cm-1, gugus C-N aromatis pada bilangan gelombang 1398 cm-1, dan pada gugus C-N alifatispada bilangan gelombang 1017 cm-1. Metode preparasi dan ekstraksi nikotin dari air ludah perokok aktif telah dikembangkan dan menghasilkan data analisis yang valid.Kata kunci: nikotin, spektroskopi Ultra Violet, validasi
PEMANFAATAN KULIT UBI KAYU MENJADI KERUPUK DAN PENENTUAN KADAR NUTRIENNYA Yusbarina -; Rumondang Bulan Nst; Zul Alfian
Sistem Informasi Vol 2 No 2 (2012): Jurnal Photon
Publisher : LPPM Universitas Muhammadiyah Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jp.v2i2.141

Abstract

Industri rumah tangga keripik ubi kayu Sanjai di Medan bahan bakunya 10 ton perhari dan 30% dari bahan baku tersebut dibuang yaitu kulitnya. Penelitian ini bertujuan untuk mengetahui berapa kadar HCN dalam kulit ubi kayu, bagaimana cara mengolah kulit ubi kayu menjadi kerupuk, berapa kadar nutrien (karbohidrat, protein, lemak, air dan abu), serta hasil uji organoleptik kerupuk. Hasil penelitian menunjukkan kadar HCN kulit ubi kayu: 22,14 mg/kg. Hal ini menunjukkan bahwa kulit ubi kayu aman untuk diolah menjadi bahan makanan. Kerupuk dibuat dengan mengolah kulit ubi kayu dengan tepung tapioka dengan perbandingan 1:2. Kadar karbohidrat, protein, air, abu, dan lemak kerupuk secara berturut –turut yaitu 82,90; 1,10; 13,00; 2,09; dan 0,10%. Hasil uji organoleptik menunjukkan skala 3 (suka).
COMMUNITY-BASED PRODUCTION OF LIQUID SMOKE AS A NON-CARCINOGENIC FISH PRESERVATIVE: - Taufik, Muhammad; Boby Cahyady; Rossy Nurhasanah; Masruroh, Pingkan; Syahputra, Muhammad Rizky; Azzahrah, Nabilah Azka; Zul Alfian; Mariany Razali
Mejuajua: Jurnal Pengabdian pada Masyarakat Vol. 5 No. 2 (2025): Desember 2025
Publisher : Yayasan Penelitian dan Inovasi Sumatera (YPIS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52622/mejuajuajabdimas.v5i2.297

Abstract

The growing demand for safe fish preservatives has encouraged the use of liquid smoke as an alternative to high-temperature processing, which may form carcinogenic compounds. This community service program focused on producing coconut-shell-based liquid smoke through pyrolysis followed by distillation to obtain grade-2 liquid smoke. Acetic acid content was determined using alkalimetry with 0.1 N NaOH. The results showed an increase in acetic acid concentration from 1% to 6.5%, meeting the grade-2 standard of SNI 8985:2021. Application through 20-minute immersion preserved fish quality for up to three days without generating carcinogenic properties. Beyond product development, the program strengthened local socio-economic conditions by providing training, empowering residents to produce liquid smoke independently, and opening new micro-enterprise opportunities. This demonstrates that community-based production can supply safe, standardized preservatives while enhancing economic resilience in Manunggal Village.
Determination of Metal Cadmium (Cd), Copper (Cu), Iron (Fe) and Zinc (Zn) in Drinking Water from The Boring Well of Surbakti Village, Karo District by Atomic Absorption Spectrophotometry Method Zul Alfian; Ria Ardianti Lubis; Harry Agusnar
Journal of Chemical Natural Resources Vol. 6 No. 2 (2024): Journal of Chemical Natural Resources
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jcnar.v6i2.18394

Abstract

Water is an essential requirement for human existence. In addition to traditional water usage, water is essential for enhancing the quality of human existence and facilitating industrial and technological endeavors. An investigation was conducted on the contents of Cadmium (Cd), Copper (Cu), Iron (Fe), and Zinc (Zn) in drinking water from drilled wells in Surbakti Village, Karo District, employing Atomic Absorption Spectrophotometry (AAS) techniques. Sampling occurred during weeks 1, 2, 3, 4, and 5 and was subsequently digested with concentrated nitric acid until a volume of 15 mL was attained. The metal concentrations of Cd, Cu, Fe, and Zn were quantified using Atomic Absorption Spectroscopy (AAS) using a calibration curve. The findings indicated a concentration of Cd at 0.0031 mg/L, Cu at 0.0470 mg/L, Fe at 0.2741 mg/L, and Zn at 0.2929 mg/L. In this instance, Cd produced a greater concentration of drinking water standards compared to Cu, Fe, and Zn. Nonetheless, it nonetheless met the drinking quality standards established by Regulation Minister of Health No. 492/Menkes/Per/VII/2010.  
Co-Authors Afniwati Afniwati Azzahrah, Nabilah Azka Boby Cahyady Endang Susilawati Harry Agusnar Mariany Razali Masruroh, Pingkan MUHAMMAD TAUFIK MUHAMMAD TAUFIK Nurul Fadillah Lubis Ria Ardianti Lubis Rossy Nurhasanah Rumondang Bulan Nst Syahputra, Muhammad Rizky Yusbarina -