Ultrasound-Assisted Emulsification Microextraction Based on Solidification Floating Organic Drop Trace Amounts of Manganese Prior to Graphite Furnace Atomic Absorption Spectrometry Determination

Table 4

Comparison of the USA-EME-SFO with other methods for extraction and determination of manganese.

Method	Enrichment factor	LOD (ng⋅mL^−1)	Reference
LLE using water-in-oil emulsion-AAS	820	0.02	[12]
CPE-FAAS	20	1.4	[19]
SDME-ETAAS	30.3	0.02	[20]
DLLME-FAAS	82.6	0.5	[21]
SPE-FAAS	—	5	[22]
LL-USAEME-FAAS	—	0.5	[23]
USA-DLLME-SFO-GFAAS	160	0.30	This work