Selective Extraction of Organic Contaminants from Soil Using Pressurised Liquid Extraction

Table 3

Analytical performance on the proposed method, PLE packed with silica in the extraction cell.

Compound	Linear response (𝑟^2)	Instrumental LOD (𝜇g/mL)	Instrumental LOQ (𝜇g/mL)	Precision RSD (%); (𝑛=7)
Naphthalene; Acenaphthalene; Acenaphthene; Fluorene; Pyrene; Benzo[a]anthracene; Benzo[a]pyrene; Chlorpyrifos; Coprostanol; Cholesterol; Stigmasterol; Stigmastanol; β-Sitosterol; Phenol; Pentachlorophenol	0.9963; 0.9990; 0.9970; 0.9965; 0.9910; 0.9944; 0.9993; 0.9975; 0.9997; 0.9992; 0.9939; 0.9998; 0.9972; 0.9981; 0.9985	0.050; 0.050; 0.050; 0.100; 0.100; 0.100; 0.100; 0.054; 0.100; 0.100; 0.100; 0.500; 0.200; 0.050; 0.250	0.165; 0.165; 0.165; 0.333; 0.333; 0.333; 0.333; 0.018; 0.333; 0.333; 0.333; 1.650; 0.667; 0.165; 0.833	2.0; 8.8; 2.7; 1.0; 0.7; 2.5; 2.4; 5.1; 1.8; 1.9; 0.9; 1.8; 3.8; 3.9; 7.6