COMPARISON OF TWO BACKGROUNDS ON 14C ACTIVITY MEASUREMENT WITH LSC (LIQUID SCINTILLATION COUNTING)

Authors

  • Andi Tenrisa’na Radiation Chemistry Laboratory, Department of Chemistry, Faculty of Mathematics and Natural Science, Hasanuddin University
  • Alfian Noor Radiation Chemistry Laboratory, Department of Chemistry, Faculty of Mathematics and Natural Science, Hasanuddin University
  • Muhammad Zakir Radiation Chemistry Laboratory, Department of Chemistry, Faculty of Mathematics and Natural Science, Hasanuddin University

Abstract

Comparison of the two types of background on 14C activity measurement has been carried out. This study aims to determine a better background for 14C activity measurement using the LSC (Liquid Scintillation Counting) method. The background used consists of two, namely background I and background II. Background I is a marble solution that has been absorbed using 30% DEA. Background II is a 30% DEA solution. Activity measurement of 14C was carried out using Hidex 300 SL liquid scintillation counter (LSC). Activity 14C background I is 99,389 DPM. While Activity 14C background II is 101,178 DPM. This shows that the background that is better used for measuring Activity 14C is background I, which is a marble solution that has been absorbed using DEA

References

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.

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.

Kim, E.Y.,Lim, J. A., Jeong, S.K., Yoon, Y. I., Bae, S.T., and Nam, S.C., 2013, Comparison of Carbon Dioxide Absorption in Aqueous MEA, DEA, TEA, and AMP Solutions, Bull. Korean Chem. Soc., 34(3): 783-787.

Varlam, C, Stefanescu, I., Popescu, I., Faurescu, I., 2007, Applying the Direct Absorption Method and LSC for 14C Concentration Measurement in Aqueous Samples, Radiocarbon, 49(2): 281-289.

Canducci, C., Bartolomei, P., Magnani, G., Rizzo, A., 2013, Upgrade Of the CO2 Direct Absorption Method For Low Level 14C Liquid Scintillation Counting, Radiocarbon, 55(2-3): 260-267.

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Published

2018-11-16

Issue

Vol. 19 No. 2 (2018): Volume 19, No. 2 (2018)

Section

Articles