表 1.

富集方式及特点

Collection methods and characteristics

Microextraction	Classification	Characteristics
TD: thermal desorption; SDME: single drop microextraction; HF-LPME: hollow fiber liquid-phase microextraction; HS-SDME: headspace single drop microextraction; Direct SPME: direct solid-phase microextraction; HS-SPME: headspace SPME; MP-SPME: membrane-protected SPME.
TD	-	Suitable for samples which are adsorbed in adsorption tube
LPME	SDME	Direct contact with sample
	HF-LPME	In-direct with sample
	HS-SDME	Suitable for volatile and semi-volatile samples
SPME	Direct SPME	Direct contact with sample
	HS-SPME	Suitable for volatile and semi-volatile samples
	MP-SPME	Protect stationary phase