【摘要】 石油产物中含有微量杂质时频域介电谱无法觉察，但会引起显著的慢介电谱．时域方法可检测出汽油中１０ｍｇ／ｋｇ的杂质硫和氧更多还原

【Abstract】 Frequency domain dielectric spectrum is not a method for tracing the analysis of doped gasoline, but the doped gasoline exhibts a slow polarization. Time domain method can detects 10 mg/kg of sulphur and oxygen in doped gasoline.更多还原