Polyethylene terephthalate (PET) and polylactic acid (PLA) bottles were tested to evaluate radon loss from water during 15 days of storage. PET bottles (lower surface/volume-ratio vials) lost 0.4-7.1% of initial radon, whereas PLA bottles lost 3.7% of it. PET bottles with volume of 0.5 L, lower surface/weight ratio, and hence higher thickness display proportionally reduced radon loss. Corrections for dissolved radium are needed during analyses. Formulas for calculating degassing efficiency and water interference on electrostatic collections are developed.
Lucchetti, C., DE SIMONE, G., Galli, G., Tuccimei, P. (2016). Evaluating radon loss from water during storage in standard PET, bio-based PET, and PLA bottles. RADIATION MEASUREMENTS, 84, 1-8 [10.1016/j.radmeas.2015.11.001].
Evaluating radon loss from water during storage in standard PET, bio-based PET, and PLA bottles
LUCCHETTI, CARLO;DE SIMONE, GABRIELE;TUCCIMEI, Paola
2016-01-01
Abstract
Polyethylene terephthalate (PET) and polylactic acid (PLA) bottles were tested to evaluate radon loss from water during 15 days of storage. PET bottles (lower surface/volume-ratio vials) lost 0.4-7.1% of initial radon, whereas PLA bottles lost 3.7% of it. PET bottles with volume of 0.5 L, lower surface/weight ratio, and hence higher thickness display proportionally reduced radon loss. Corrections for dissolved radium are needed during analyses. Formulas for calculating degassing efficiency and water interference on electrostatic collections are developed.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
