solid phase microextraction（SPME）
举一反三
- Which of the following methods do not belong to solvent extraction? () A: Simultaneous distillation and extraction; B: Solvent assisted flavor evaporation; C: Solid phase microextraction; D: Direct solvent extraction
- The hypothetical state of drawing small molecules by software is A: Vacuum gas phase B: Atmospheric liquid phase C: Atmospheric solid phase D: Vacuum solid phase
- The three-phase composition of soil refers to solid phase, liquid phase and gas phase
- 组合合成化学只能采用固相（solid phase）合成反应，不能采用液相（solution phase）合成反应。
- During<br/>cooling of a material, when a single phase solid transforms directly<br/>to two-phase solid, this is called a ( ) reaction. A: isomorphous B: eutectic C: peritectic D: eutectoid