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Analysis of 14 C on samples of coral reefs on the Samalona Spermonde Islands vessel through 14 C activity measurements using the LSC (Liquid Scintillation Counting) method was carried out. The preparation sample is carried out physically and chemically. Preparation of coral reefs with chemicals using a mixture of 1N NaOH and 30% H 2 O 2 processed with a mixture of 1% HClO 4 and 30% H 2 O 2 and finally with 10% HCl to produce a clean sample by adding a weight of 5.36%. Carbonate separation was carried out using KOH as a carbosorb to produce K 2 CO 3 solution. The total carbon is determined by the titration method which produces a total carbon of 0.9984 g. Measurement of 14 C activity is done using LSC Hidex 300 SL. Specific activities of coral reef samples obtained were 15.06 ± 3.3613 DPM / gC. Age of coral samples on the island of Samalona in the Spermonde Islands was 130,343 ± 18.4 years.

Determination of the age of Samalona island coral reef through C-14 activity using LSC method (Liquid Scintillation Counting)