Preparation of Ampicillin Surface Molecularly Imprinted Polymers for Its Selective Recognition of Ampicillin in Eggs Samples

Table 4

Standard addition of ampicillin and relative standard deviations of ampicillin recovery from egg samples.

Adsorbent	Amount added (ng·g-1)	Recovery (R/%)			Mean recovery (/ %)	RSD/%
		1	2	3
MIP-SPE	5	90.6	99.1	95.1	94.9	4.2
	20	92.7	87.4	94.3	91.5	3.6
	50	91.1	97.0	89.2	92.4	4.1
NIP-SPE	5	12.3	22.5	25.6	20.2	6.9
	20	17.8	16.1	8.3	14.1	5.1
	50	26.7	26.7	27.6	27.0	0.5
C18-SPE	5	77.3	78.3	73.9	76.5	2.3
	20	91.5	87.7	93.8	91.0	3.1
	50	92.5	97.1	92.7	94.1	2.6