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利用动态预浓缩方法对溶解在变压器油中的乙炔、乙烯和乙烷进行了富集 ,在 1 0 m L顶空气体的进样量下得到了 1 0 0倍的富集效果 ,因此可以用热导检测器替代氢火焰离子化检测器 ,使在线检测成为可能。通过比较溶解气体从变压器油中脱出的方法发现 ,超声振荡比机械振荡的脱气效率提高几十至上百倍。
Acetylene, ethylene and ethane dissolved in transformer oil were enriched using a dynamic preconcentration method that achieved a 100-fold enrichment effect at a sample volume of 10 m L of headspace gas, thus allowing the use of Thermal conductivity detector instead of hydrogen flame ionization detector, so that online testing possible. By comparing the dissolved gas from the transformer oil prolapse method found that the ultrasonic oscillation than the mechanical oscillation degassing efficiency increased by tens to hundreds times.