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。
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).
采用电喷雾负离子化，多反应监测(MRM)进行定量分析。
Mitiglinide calcium was quantitated by multiple reaction monitoring (MRM) mode with negative electrospray ionization (ESI -).
采用电喷雾负离子化，多反应监测(MRM)进行定量分析。
Mitiglinide calcium was quantitated by multiple reaction monitoring (MRM) mode with negative electrospray ionization (ESI -).
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