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A Study on the Improvement Repeatability and Accuracy of the Analysis Method for SF6 of Trace Level
Heejung Yoo,Hongwoo Choe,Sepyo Lee,Jongho Kim,Sangok Han,Sangboom Ryoo 한국도시환경학회 2018 한국도시환경학회지 Vol.18 No.4
Kyoto Protocol, adopted in 1997, set the obligation to reduce CO2, CH4, N2O, HFCs, PFCs, and SF6 in developed countries during 1st promised period. SF6 has been drawing a lot of attention since the Kyoto Protocol because once it is released into the atmosphere, it not only stays in the atmosphere for more than 3,200 years but also emits 22,800 times stronger global warming potential at the same concentrations as CO2 if remains in the atmosphere for 100 years. This study introduces 12 methods for SF6 of measuring trace. SF6 of trace level in the atmosphere correctly, the measurement method was changed and as a result, when the back flush method was applied to the pre-concentration system that used low-temperature concentration and high-temperature desorption system, which used Carboxen-1000 adsorption trap, the effect was the best.