Analysis activity ¹⁴C of coral in Barrang Caddi Island, Spermonde Archipelago

This study aims to determine carbon-14 activity on coral from Barrang Caddi. Several stages of research were physical and chemical cleaning to eliminate contamination on coral. CO₂ absorption pre-treatment method, titration to determine total carbon absorbed in the process of absorption CO₂ and enumeration with LSC Hidex 300 SL to determine the optimum time of enumeration, the average value of activity ¹⁴C and specific activities ¹⁴C. In this study, marble from marble karst, Maros, was used as a background. The results show that the absorption capacity was 0.2188 mol CO₂/mol OH, the absorption efficiency of 21.87%, total carbon mass was 0,168 gram, optimum counting time was 15 minutes, average activity ¹⁴C was 433,597 DPM, enumeration efficiency was 0,567 and specific activity was 15.262 DPM/gC. It was concluded that coral in Barrang Caddi relatively new. (paper)