DETERMINATION OF AGE OF CORAL REEFS ON PANIKIANG ISLAND, BARRU DISTRICT, SPERMONDE ISLANDS THROUGH MEASUREMENT ACTIVITY 14C USING LSC (LIQUID SCINTILLATION COUNTING) METHOD
DOI:
https://doi.org/10.20956/mca.v20i1.6570Abstract
Determination Of Age Of Coral Reefs On Panikiang Island, Barru District, Spermonde Islands Through Measurement Activity 14C Using LSC (Liquid Scintillation Counting) Method. This research was using a sample of coral reefs taken from the Panikiang Island, Barru, Spermonde Islands. This research has been carried out by using sample preparation with physic and chemical. Sample preparation was done physically and chemically. Chemical preparation was carried out by using a mixture of NaOH with 30% H2O2 followed by a mixture of HClO4 with 30% H2O2, and finally with HCl solution to produce a clean sample with a weight reduction of 7.94%. Absorption of CO2 through reaction with HCl 10% and NH4OH as Carbosorb .produced K2CO3. The total carbon in the sample solution is 0.2496 gram sobtained through titration method. Radiocarbon dating method based on the measurement of the specific activity of the samples obtained from the results of counts LSC (Liquid Scintilation Counter) Hidex 300 SL.The specific activity of coral sample is 14.68 ± 4.04 DPM/gC. Age of coral sample which were calculated from the specific activity were 342.04 ± 37.66 years.Downloads
References
Yuliati, H., Akhadi, M., 2005, Radionuklida Kosmogenik Untuk Penaggalan, Puslitbang Keselamatan Radiasi dan Biomedika Nuklir, Pusat radiasi Batam.
Arman, A. dkk., 2013, Studi Penentuan Umur dan Laju Pertumbuhan Terumbu Karang terkait dengan Perubahan Iklim Ekstrim Menggunakan Sinar-X, Jurnal Ilmiah Aplikasi Isotop dan Radiasi, 9 (1): 1-10.
. 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.
Satrio dan Abidin, Z., 2007, Perbandingan Metode Sintesis Benzena dan Absorpsi CO2 Untuk Penanggalan Radioisotop 14C, Jurnal Ilmiah Aplikasi Isotop dan Radiasi, Jakarta, 3 (1): 1-26.
Siregar, D. A., dan Soehaimi, A., 2009, Penarikhan Radiokarbon dalam Penentuan Aktivitas Tektonik Kuarter di Sepanjang Aliran Sungai Opak dan Pantai Samas, Yogyakarta, JSDG, 19(2): 117-126.
. Jauhari, Maming, 2014, Determination of The Coral Age in Spermonde Archipelago Measurement 14C Activity Using LSC (Liquid Scintillation Counting) Method, Marina Chemica Acta, 15(1): 13-20
Hartoko, D. A., Noor, A., Zakir, M., dan Maming, Utilization of Hydroxide Compound As CO2 Absorbent for Measurement of Carbon-14 in Coral Reef Sample From Spermonde Archipelago, Marina Chemica Acta, 17(2), ISSN 1411-2132.
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. Radiocarbon. 44 (2) : 567-580
