THE USE OF DIETHANOLAMINE AS A CO2 ABSORBENT IN WAS TAKE THE DETERMINATION CORAL REEF AGE IN BARRANG LOMPO ISLAND SPERMONDE ISLANDS THROUGH MEASUREMENTS OF 14C ACTIVITY BY LIQUID SCINTILLATION COUNTING (LSC) METHOD
Abstract
Research on the use of diethanolamine (DEA) as a CO2 absorbent in was take the determination coral reef age in Barrang Lompo Island, Spermonde Islands through measurements of 14C activity by liquid scintillation Counting method (LSC) was carried our. Coral reef sample of the island Barrang Lompo at coordinates 5 ° 06 '49 " LS 119 ° 25' 20" BT with a dept of 3-4 meters from the sea surface. Coral reefs (coral reef) is an ecosystem that live on the water in the form of limestone formations (CaCO3). Sample preparation is done physically and chemically. Chemical preparation of coral reef sample was using 30% H2O2 continued with HClO4 mixture and H2O2 30% and the last with a solution of HCl to produce a clean sample with a weight reduction of 16.318%. Carbonate samples separated as CO2 by reaction with 10% HCl and absorbtion by diethanolamine to produce carbamate compounds with 62.236% efficiency. Total carbon in the sample solution is obtained through a 1,709 gram reduction methods before and after absorption. Radiocarbon dating method is based on measuring the specific activity of the samples obtained from the results of the count Liquid Scintillation Counting (LSC) Hidex 300 SL, which is 7.938192 dpm/gC. The specific activity of the age of the coral reefs are estimated 5425.452 yearReferences
Aulia, K.N., Kasmara, H., Erawan, T.S., Natsir, S.M., 2012, Kondisi Perairan Terumbu Karang Dengan Foraminifera Bentik Sebagai Bioindikator Berdasarkan Foram Index Di Kepulauan Banggai, Provinsi Sulawesi Tengah, Jurnal Ilmu dan Teknologi Kelautan Tropis, Jakarta, 4 (2): 335-345.
Boekschoten, G. J. dan Best, M. B., 1988, Fossil and Recent Shallow Water Corals from The Atlantic Islands Off Western Africa, Life and Marine Science Journal ,68 (2): 99-112.
Faure, G., 1986, Principle of Isotope Geology: 386-404.
Kim, E.Y., Lim,J.A., Jeong, S.K., Yoon, Y. I., Bae, S.T., and Nam, S.C., 2013, Comparison of Carbon Dioxide Absorption in Aqueous MEA, DEA, TEA, and AMP Solutions, Bull. Korean Chem. Soc., 34 (3), 783-787.
Kim, S. dan Kim, H.T., 2004, Aspen Simulation Of CO2 Absorption System With Various Amine Solution, Dept. of Energy Studies, Ajou University, Korea, 49 (1).
Lasabuda, R., 2013, Pembangunan Wilayah Pesisir Dan Lautan dalam Perspektif Negara Kepulauan Republik Indonesia, Jurnal Ilmiah Platax, FPIK UNSRAT, 1 (2): 92-101.
Libby, W.F., 1960, Radiocarbon Dating, Nobel Lecture, Elsevier Publishing Company, Amsterdam.
Manapa, E., 2011, Profil Dunia Kelautan Dalam Perspektif Siswa Indonesia di Tingkat Sekolah Dasar, Jurnal Penelitian Pendidikan, UPI, 11 (1): 66-74.
Pratikno, B., Abidin, Z., Sidauruk, P., dan Satrio, 2009, Aplikasi Isotop Alam 18O, 2H dan 14C untuk Studi Air Tanah di Kepulauan Seribu, Jurnal Ilmiah Aplikasi Isotop dan Radiasi, Pusat Aplikasi Teknologi Isotop dan Radiasi, Badan Tenaga Nuklir Nasional, Jakarta, 5 (1): 68-82.
Sumarjitho, 2011, Spermonde Archipelago; Sulawesi Selatan, (Online),(http://sumarjitho.blogspot.com/2011/12/kepulauansperonde-sulawesi-selatan.html, diakses pada tanggal 22 Maret 2014).
Tjahaja, I.P., dan Mutiah, 2000, Metode Pencacahan Sintilasi Cair : Salah Satu Alternatif untuk Pengukuran α dan β Total dalam Sampel Lingkungan, Indonesian Journal of Nuclear Science and Technology, 1 (1) : 31-46.
Yuliati, H. dan Akhadi, M., 2005, Radionuklida Kosmogenik Untuk Penanggalan, Puslitbang Keselamatan Radiasi dan Biomedika Nuklir,Buletin Alara, 6 (3): 163-171.
