DETERMINATION OF KOH EFFICIENCY AS CARBOSORB IN DETERMINING AGE OF CORAL REEF SAMPLES IN SELAYAR ISLANDS THROUGH LSC METHOD (LIQUID SCINTILLATION COUNTING)
DOI:
https://doi.org/10.20956/mca.v20i1.6569Abstract
Research using the method of LSC (Liquid Scintillation Carbon) in determining the age of coral reefs in the Selayar islands has been carried out. The samples of coral reefs were taken between the tides. Sample preparation was carried out physically and chemically using an acid-base mixture solution: NaOH, H2O2, HClO4 and HCl produced coral samples that looked whiter with weight reduction of up to 1.6%. Carbonate is separated into CO2 by reaction with 10% HCl and absorption with KOH 1 M as K2CO3. Total carbon is determined by the titration method which produces 0.0542 g of total carbon sample. Specific activity of 14C measured by enumeration with LSC is 12.0542 DPM/gC. The age of coral reef samples obtained from sample specific activity data was 1971,728 yearsDownloads
References
Farid, H. 2014. Arus balik kebudayaan: Sejarah sebagai kritik. Naskah pidato kebudayaan. Pidato kebudayaan, Dewan Kesenian Jakarta. 10 November. Jakarta.
Bunga, J., 2017, Penggunaan Dietanolamina Sebagai Absorben Dalam Penentuan Umur Terumbu Karang Di Pulau Barrang Lompo Kepulauan Spermonde Melalui Pengukuran Aktivitas 14C Dengan Metode Liquid Scintilation Counting (LSC, Jurnal tidak diterbitkan, Jurusan Kimia Fakultas Matematika Dan Ilmu Pengetahuan Alam Universitas Hasanuddin, Makassar.
Thamrin, 2007, Karang dan Zooxanthellae Avertebrata dan Miro-algae Pengendali Ekosistem Terindah Dunia, Jurusan Ilmu Kelautan Fakultas Perikanan dan Ilmu Kelautan Universitas Riau, Pekanbaru
Rositasari, R., 1998, Aspek Geologi dan Sejarah Pembentukan Terumbu Karang, Balitbang Oseanografi, Puslitbang Oseanologi-LIPI, Jakarta, 13(3,4); 1-9.
Sulzman, E.W., 2000, The Carbon Cycle, University Corporation for Atmosph Research.
Suci, A.A.S, Deawati, Y., dan Siregar D.A., 2013, Pembuatan Standar Modern Karbon Gula Pasir Indonesia Untuk Menentukan Umur Fosil Kayu dan Moluska Menggunakan Metode Radiokarbon, Prosiding Seminar Nasional Sains dan Teknologi Nuklir.
Rahmaniah, W.N., 2014, Penggunaan Senyawa Alkanoamina Sebagai Absorben CO2 untuk Pengukuran Karbon-14 pada Sampel Terumbu Karang Asal Kepulauan Spermonde, Jurusan Kimia, Fakultas MIPA, Universitas Hasanuddin, Makassar.
Tjahaja, I.P., dan Mutiah, 2000, Metode Pencacahan Sintilasi Cair : Salah Satu Alternatif untuk Pengukuran a dan ß Total dalam Sampel Lingkungan, Indonesian Journal of Nuclear Science and Technology, 1 (1) : 31-46.
Benito, C., Jimenez, A., Sanchez, C., and Sabate, A.N., 2012, Liquid and Solid Scintilation: Principles and Applications, Unitat de Proteccio Radiologica, Barcelona.
Yu, C.H., Huang, C.H., and Tan, C.S., 2012, A Review of CO2 Capture by Absorption and Adsorption, Aerosol and air Quality Research, 12 : 746-747.
Satrio, dan Abidin, Z., 2007, Perbandingan Metode Sintesis Benzena dan Absorpsi CO2 Untuk Penanggalan Radioisotop 14C, Jurnal Ilmiah Aplikasi Isotop dan Radiasi, 3 (1); 1907-0322.
Adkins, J.F., Griffin, S., Kashgaria, M., Cheng, H., Druffel, E.R.M., Boyle, E.A., Edwards, R.L., Shen, C.C., 2002, Radiocarbon Dating of Deep-Sea Corals, Arizona Board of Regents on Behalf of the University of Arizona, 44(2); 567-580.
Siregar, D.A., 2009, Penarikan Radiokarbon Bagi Penentuan Umur Bagi Penentuan Aktivitas Tektonik Kuarter di sepanjang Aliran Sungai Opak dan Samas Yogyakarta, Geo Science, 19 (2); 117-126.
Currie, L. A., 2004, The Remarkable Metrological History of Radiocarbon Dating [II], Journal of Research of the National Institute of Standards and Technology, 109(2); 185-217.
