Table 7. Recovery rates of PA cyclic monomers and oligomers from olive oil.

Cyclic monomers and oligomers	Recovery rate (%)
PA6 monomer (CPL)	98 ± 3 (3.3)
PA6 dimer	101 ± 2 (2.1)
PA6 trimer	105 ± 6 (5.5)
PA6 tetramer	103 ± 3 (2.6)
PA6 pentamer	87 ± 9 (9.8)
PA6 hexamer	73 ± 8 (10.2)
PA66 monomer	92 ± 1 (1.1)
PA66 dimer	95 ± 7 (7.1)
PA66 trimer	81 ± 6 (7.9)

Each value is given as the mean ± SD (RSD%) of three trials.

Each oligomer (50 ng) was spiked in 5 mL of olive oil.