APPLICATION METHODS LIQUID SCINTILLATION COUNTING (LSC) IN DETERMINING CONCENTRATION OF BIO SOLAR

Rahmawati Rahmawati (Health Analysts Academy Muhammadiyah, Makassar)
Alfian Noor (Radiation Chemistry Laboratory, Hasanuddin University, Makassar)
Maming Gaffar (Department Of Chemistry, Faculty of Sciences, University of Hasanuddin)
Muhammad Zakir (Department Of Chemistry, Faculty of Sciences, University of Hasanuddin)

MARINA CHIMICA ACTA
Vol. 17 No. 2 (2016): Volume 17 No. 2 (2016)

Research on the use of a liquid scintillation counter method in determining the concentration of biodiesel in the market has been carried out by taking samples of biodiesel in Pertamina. Preparation done by creating a standard biodiesel and biodiesel mixed with diesel at a certain concentration. Biodiesel is chemically formed by the transesterification and esterification process is converted into methyl ester triglycerides with the help of H2SO4 and NaOH as a catalyst. Total carbon in the sample solution is 1.5690 g/8 mL obtained through methods spekktrofotometri uv-vis. The method of determining the concentration of a specific activity based on measurements of samples obtained from the shredded Liquid Scintilation Counter (LSC) Hidex 300 SL, ie 11.5902 DPM / gC. By using the specific activity of the sample and the specific activity was added to standard linear equations of the obtained sample concentration of biodiesel amounted to 18.81%.