Determination of Polycyclic Aromatic Hydrocarbons in Tea Infusions Samples by High Performance Liquid Chromatography with Fluorimetric Detection

Table 2

Mean% recoveries ± standard deviation for added polycyclic aromatic hydrocarbons to black tea infusions obtained from liquid-liquid extraction with shaking after saponification step and from ultrasonication in bath water.

PAHs	Mean recoveries ± standard deviation
	Ultrasound extraction		Liquid-liquid extraction
	10 ng	20 ng	1 ng	2 ng
	(0,83 ng/mL)	(1,6 ng/mL)	(0,25 ng/mL)	(0,50 ng/mL)
Acenaphtene
Fluorene
Phenanthrene
Anthracene
Fluoranthene
Pyrene
Benz[a]anthracene
Chrysene
Benzo[b]fluoranthene
Benzo[k]fluoranthene
Benzo[a]pyrene
Dibenz[a,h]anthracene
Benzo[ghi]perylene
Indeno[1,2,3-cd]pyrene			—