ANALISIS TRITIUM DALAM AIR LAUT MENGGUNAKAN LSC TRICARB 2910TR MELALUI PROSES ELEKTROLISIS
Sari
ANALISIS TRITIUM DALAM AIR LAUT MENGGUNAKAN LSC TRICARB 2910TRMELALUI PROSES ELEKTROLISIS. Base-line data tritium dalam air laut diperlukan untukkeperluan monitoring lingkungan dari dampak pengoperasian instalasi nuklir, khususnya pembangkitlistrik tenaga nuklir. Konsentrasi yang sangat rendah tritium dalam air laut merupakan tantanganberat dalam analisis di laboratorium dengan peralatan yang sangat terbatas. Untuk dapat mengukurtritium dalam air laut dengan LSC TRICARB 2910TR maka perlu untuk melakukan pengayaan tritium.Dalam penelitian ini dilakukan pengayaan melalui elektrolisis. Proses elektrolisis dilakukan denganmembuat 18 sel elektrolit dari erlenmeyer 100 ml yang dirangkai kombinasi seri dan paralelmenyesuaikan kemampuan suplai variabel arus dan tegangan DC, maksimum 30V 30A dariHY3030E. Elektrolisis dilakukan secara bertahap sedemikian hingga 1500 ml distilat air laut dalam18 sel terelektrolisis tinggal menjadi 50 ml, elektrolit tersisa kemudian dipreparasi untuk dapatdilakukan pencacahan di LSC 2910TR. Hasilnya cukup baik, dimana proses elektrolisis dalampenelitian ini dapat menurunkan aktivitas minimum tritium yang dapat dideteksi (MDA) dari 1,8773Bq/L (15,76 TU) menjadi 0,1116 Bq/L (0,94 TU). Analisis 3 sampel air laut yang berasal dari TelukJakarta (TJ), Bangka Barat (BB) dan Selat Sunda (SS) diperoleh masing-masing konsentrasitritiumnya sebesar 0,19098±0,01085, 0,20313±0,01097 dan 0,12011±0,01074 Bq/L.
Kata kunci: tritium, air laut, LSC, elektrolisis.
ABSTRACTANALYSIS OF TRITIUM IN SEAWATER USING TRICARB 2910TR LSC THROUGH THEELECTROLYTIC PROCESS. Base-line data of tritium in sea water is necessary for the purposes ofenvironmental monitoring from the impact of the operation of nuclear installations, especially nuclearpower plants. The Very low concentrations of tritium in sea water is a serious challenge in the analysisin the laboratory with very limited equipment. To be able to measure tritium in sea water withTRICARB 2910TR LSC it is necessary to perform tritium enrichment. In this research, the enrichmentprocess is done through electrolysis. Electrolytic process is performed by making 18 electrolytic cellmade from 100 ml elenmeyer glass were assembled in series and parallel adjusted to the variablecurrent and DC voltage power supply, capability on 30V 30A maximum from HY3030E. TheElectrolytic done gradually so that the 1500 ml of sea water distillate in 18 cell living into a 50 ml, theremain electrolyte then prepared for counting that can be done in 2910TR LSC. The result is quitegood, where the electrolytic process in this study can decrease the Minimum Detectable Assay (MDA) from 1.8773 Bq/L (15.76 TU) to 0.1116 Bq / L (0.94 TU). Analysing of 3 seawater samples from the Jakarta Bay (TJ), West Bangka (BB) and the Sunda Strait (SS) shown that the each tritiumconcentrations is 0.19098±0.01085, 0.20313±0.01097 and 0.12011±0.01074 Bq/L.
Keywords: tritium, sea water, LSC, electrolysis.
Kata kunci: tritium, air laut, LSC, elektrolisis.
ABSTRACTANALYSIS OF TRITIUM IN SEAWATER USING TRICARB 2910TR LSC THROUGH THEELECTROLYTIC PROCESS. Base-line data of tritium in sea water is necessary for the purposes ofenvironmental monitoring from the impact of the operation of nuclear installations, especially nuclearpower plants. The Very low concentrations of tritium in sea water is a serious challenge in the analysisin the laboratory with very limited equipment. To be able to measure tritium in sea water withTRICARB 2910TR LSC it is necessary to perform tritium enrichment. In this research, the enrichmentprocess is done through electrolysis. Electrolytic process is performed by making 18 electrolytic cellmade from 100 ml elenmeyer glass were assembled in series and parallel adjusted to the variablecurrent and DC voltage power supply, capability on 30V 30A maximum from HY3030E. TheElectrolytic done gradually so that the 1500 ml of sea water distillate in 18 cell living into a 50 ml, theremain electrolyte then prepared for counting that can be done in 2910TR LSC. The result is quitegood, where the electrolytic process in this study can decrease the Minimum Detectable Assay (MDA) from 1.8773 Bq/L (15.76 TU) to 0.1116 Bq / L (0.94 TU). Analysing of 3 seawater samples from the Jakarta Bay (TJ), West Bangka (BB) and the Sunda Strait (SS) shown that the each tritiumconcentrations is 0.19098±0.01085, 0.20313±0.01097 and 0.12011±0.01074 Bq/L.
Keywords: tritium, sea water, LSC, electrolysis.
Teks Lengkap:
PDFRefbacks
- Saat ini tidak ada refbacks.