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Sagir Alva
Universitas Mercu Buana
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Journal : JOURNAL OF CHEMICAL NATURAL RESOURCES (JCNaR)

 1 
Analysis of Potassium Ion (K+), Sodium Ion (Na+), and Proteins from Coconut Water Variety of Coconut and Hybrid Coconut Sagir Alva
Journal of Chemical Natural Resources Vol. 3 No. 1 (2021): Journal of Chemical Natural Resources
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (351.176 KB) | DOI: 10.32734/jcnar.v3i1.9340

Abstract

Analysis of potassium ion (K+), sodium ion (Na+), and proteins of Dalam coconut varieties water and Hybrid coconut varieties water have been done. The sample is green coconut which was taken simple random from Deli Tua Barat village in the regency of Deli Tua. Analysis of potassium ion (K+) and sodium ion (Na+) was determined by Atomic Absorption Spectrophotometry method (AAS) and analysis of protein was determined by the Kjeldahl method. From the result analysis of Dalam coconut varieties water contain amount potassium ion 321.60 mg/100 mL + 0,77 mg/100 mL, sodium ion 33.17 mg/100 mL + 1.85 mg/100 mL, and protein 0,18 % + 0.05 %. Whereas Hybrid coconut varieties water contain amount potassium ion 278.67 mg/100 mL + 1.53 mg/100 mL, sodium ion 31.33 mg/100 mL + 0.83 mg/100 mL, and protein 0.48 % + 0.3 %.
Decrease Levels of Chromium, Copper, and Nickel in Liquid Waste of The Electroplating Laboratory of Medan Polytechnic with Electrocoagulation Method Alva, Sagir
Journal of Chemical Natural Resources Vol. 3 No. 2 (2021): Journal of Chemical Natural Resources
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (421.69 KB) | DOI: 10.32734/jcnar.v3i2.9346

Abstract

The liquid waste contained several metals such as Cr, Cu, and Ni in concentrations of 64 mg / L, 252 mg / L, and 125 mg / L, which may cause environmental pollution. The process of coating metal has resulted in heavy metal waste. The electrocoagulation process is a combination between electrochemical processes and coagulation-flocculation processes. This research aims to use the electrocoagulation method as an alternative for treating wastewater containing heavy metals in particular. The results showed a decreasing trend of percentage in metal content with decreased levels of 99.931%, 99.837%, and 99.994% for Cr, Cu, and Ni, respectively.
Determination of Potassium in Empty Bunches Palm Oil (Elaeis guineensis Jacq.) Using Flame Photometry Method Alva, Sagir
Journal of Chemical Natural Resources Vol. 3 No. 2 (2021): Journal of Chemical Natural Resources
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (326.621 KB) | DOI: 10.32734/jcnar.v3i2.9348

Abstract

Research on the determination of potassium in empty bunches palm oil have been done with the flame photometry method. The samples were taken randomly from five areas in Northen Sumatera with various heights in the range of < 25- 400 m above sea level. The first sampling was of Datuk Bandar district at Tanjung Balai < 25 m, Meranti district at Kisaran 50 to 100 m, Bosar Maligas district at Simalungun 150-200 m, Simarimbun district at Pematang Siantar 250 to 300 m, and the last Sari Matondang district at Sidamanik 350-400 m. The sample was digested using concentrated nitric aid and 30% hydrogen peroxide then heated with the addition of nitric acid concentrated. Potassium content was measured with a flame photometer at specific 767.5 nm by using calibration methods. The result obtained that potassium contents in the samples were 11.83%; 17.56%; 21.89%; 24.68%, and 25.14% for Tanjung Balai, Kisaran, Simalungun, Pematang Siantar, and Sidamanik respectively. The data obtained showed the higher area of the sea, the lower the temperature so the content of potassium increased in the palm oil empty bunches.
Determination of Level of Ag, Cu, and Fe in the Mineral Rock Coming from Jambu Dolok Hamlet Toba Samosir District Alva, Sagir
Journal of Chemical Natural Resources Vol. 3 No. 2 (2021): Journal of Chemical Natural Resources
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jcnar.v3i2.9355

Abstract

A study on the determination of Ag, Cu, and Fe contents in mineral rocks has been conducted. The sample was randomly taken from the surface of the hill at Dusun Jambu Dolok Kabupaten Toba Samosir. Ovens destroyed the sample at 900°C. For the determination of Ag and Cu, the sample was dissolved by using concentrated HNO3. For the determination of Fe, it was dissolved by using concentrated HNO3 and concentrated HCl. The determination of Ag, Cu, and Fe was carried out using Atomic Absorption Spectrophotometer. The wavelength is 328.1 nm for Ag, 324.7 nm for Cu, and 248.3 nm for Fe. The results obtained show that the content of Ag, Cu, and Fe in the sample are 2.1590 mg/Kg, 21,311.4754 mg/Kg, and 150,000.0000 mg/Kg, respectively
Co-Authors Adelfy Dara Arianti Agnes Hanna Patty, Armin Naibaho, Singgih Fitra Utama, Ahmad Ariri Ahmad Kamal Arifin Aiman Sajidah Abd Aziz Aiman Sajidah binti Abdul Aziz Albert Phak Jie Wong Ali Rinaldi Andi Firdaus Sudarma Arianti, Adelfy Dara Arifin, Ahmad Kamal Ariri, Ahmad Asadullah, Mas'ud Asadullah, Masud Asep Setia Kristanto Ayu Arwati, I G. Baihaqi Baihaqi Basyari, Aziz Binawati Ginting Dafit Feriyanto Dayanti, Meri Deni Shidqi Khaerudini Edy Herianto Majlan Eka Safitri Eka Safitri Elin Yusibani Elly Sufriadi Fadhilla, Eky Nur Fidi Fidi Fidi, Fidi Fitri , Muhammad Fitri Dara Fonna, Syafrizal Friliandita, Vivi G. Ayu Arwati, I Ginting, Dianta Hadi Pranoto Hadi Pranoto Hasbullah, Siti Aishah I Gusti Ayu Arwati Ibdal Satar Imam Hidayat Indradewa, Rhian Iqhrammullah, Muhammad Julinawati Julinawati Julinawati, Julinawati Khairi Suhud KHAIRI SUHUD Kurniawan Kurniawan Leni Heliawati Marysca Shintya Dewi Mas&#039;ud Asadullah Mohd Ismahadi bin Syono Muhammad Farhan Muhammad Fitri, Muhammad Muhammad Ihsan Muhammad Isa Mustanir Mustanir Nanang Ruhyat Noviyanto, Alfian Noviyanto, Alvian Nurato , Nurato Nurul Islami, Nurul Pandriana, Aap Popy Yuliarty Pudjiwati, Sri Resista Vikaliana Resmi Bestari Muin Rinaldi, Ali Rini Anggraini Rita Sundari Robi Suherman Rohadi Satrio Budi Utomo Sawarni Hasibuan Siti Aishah Hasbullah Subekti Subekti Sudarma, Andi Firdaus Suhud, Khairi Sukendar Sukendar Sukoma, Sukoma Sundari, Rita Supaat Zakaria Surbakti, Muhammad Syukri Suyadi, Yadi Swandya Eka Pratiwi, Swandya Eka Syafrizal Fonna Tarigan, Kontan Teddy Kurniawan Thasyah Pitanova Vivi Friliandita Wahyu Irwansyah Wahyudi, Haris Wan Adil bin Wan Jamil Wan Adil Wan Jamil Wiwit Suprihatiningsih Zakaria Zakaria Zulnazri, Z