Synthesis and Characterization of Molecular Imprinting Polymer Microspheres of Piperine: Extraction of Piperine from Spiked Urine

Table 2

The distribution ratio, selectivity coefficients, and relative selectivity coefficient of MIP 3 and NIP.

	(MIP 3) (mL g^−1)	(NIP) (mL g^−1)
Piperine	76.72	26.79	5.34	—
Caffeine	14.37	7.70	3.47	1.54