Effectiveness of Liquid-Liquid Extraction, Solid Phase Extraction, and Headspace Technique for Determination of Some Volatile Water-Soluble Compounds of Rose Aromatic Water

Table 7

SPE average recovery.

Compounds	Average percent recovery and RSD values (%); Extraction type
	C18	ENV+	HS-GCMS
-Pinene	91.45 (0.78)	32.96 (1.20)	60.11 (2.13)
Linalool	86.44 (0.98)	76.61 (0.90)	61.48 (2.25)
-Caryophyllene	80.44 (0.75)	59.56 (0.93)	59.03 (2.35)
-Humulene	85.85 (0.92)	59.03 (1.02)	45.32 (3.12)
Citronellol	85.69 (0.96)	75.87 (0.91)	58.21 (2.01)
Nerol	86.46 (0.96)	72.71 (0.95)	46.39 (2.41)
Geraniol	85.73 (0.90)	73.04 (1.05)	48.00 (2.39)
PEA	99.75 (0.83)	80.33 (0.85)	33.53 (2.17)
Methyl eugenol	84.20 (0.96)	85.22 (1.00)	116.90 (1.94)
Eugenol	85.01 (0.99)	87.22 (0.96)	83.49 (1.96)