Optimization of Cocktail AquaLight LLT Volume for Estimation of 14C Activity in Aqueous Sample using LSC Hidex 300 SL

Firman, Nur Faiizah Aqiilah; Noor, Alfian; Zakir, Muhammad; Maming, Maming; Fathurrahman, Achmad Fuad

doi:10.21608/ejchem.2021.69931.3541

Optimization of Cocktail AquaLight LLT Volume for Estimation of 14C Activity in Aqueous Sample using LSC Hidex 300 SL

Document Type : Original Article

Authors

¹ Doctoral Program in Department of Chemistry, Faculty of Mathematics and Natural Sciences, Hasanuddin University, Jl. Perintis Kemerdekaan Km. 10 Tamalanrea, Makassar 90245, Indonesia

² Department of Chemistry, Faculty of Mathematics and Natural Sciences, Hasanuddin University, Jl. Perintis Kemerdekaan Km. 10 Tamalanrea, Makassar 90245, Indonesia

³ Department of Chemistry, Faculty of Mathematics and Natural Sciences, Hasanuddin University

⁴ Department of Environmental Science, Faculty of Forestry and Environmental Science, Halu Oleo University, Kampus Drs. H. Abdullah Silondae. Jl. Mayjen S. Parman, Kemaraya, Kendari 93121, Indonesia

10.21608/ejchem.2021.69931.3541

Abstract

Optimization of the comparison between the AquaLight LLT cocktail and aqueous samples had been carried out. AquaLight LLT cocktail was mixed with an aqueous sample. The variation ratio between the aquaLight cocktail and the sample were 19: 1; 18: 2; 17: 3; 16: 4; 15: 5; 14: 6; 13: 7; 12: 8; 11: 9; 10:10; 9:11; 8:12; and 7:13. Then, each mixture was analyzed by LSC Hidex 300 SL. Optimization is seen by comparing the highest efficiency which is stated by the TDCR value. The results indicate that the best ratio between AquaLight cocktail and an aqueous sample was 12: 8. The CPM, DPM, and TDCR values from a mixture of 12 mL cocktail and 8 mL sample were 306,400 ± 3,578; 418,000 ± 7,348; and 0.733 ± 0.013.

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