selected+ion+monitoring+,SIM
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The aerosol sample was extracted by ultrasonic technique and 16 of the PAH's were determined, in priority, as proposed by EPA, by GC-MS with selected-ion monitoring (SIM).
超声波抽提气溶胶样品，用GC - MS的选择离子监测(SIM)方式测定EPA提出的优先监测的16种多环芳烃的含量。
youdao
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