Flow-Injection Preconcentration of Chloramphenicol Using Molecularly Imprinted Polymer for HPLC Determination in Environmental Samples

Table 1

The recovery of CAP preconcentration from aqueous standard solutions on MIP flow through reactor in FIA system with UV detection. MIP reactor of 5 mm i.d. and 100 mg MIP bed was used. The elution was carried out with 1.2 mL methanol.

Initial CAP concentration, μg/L	Initial volume of loaded solution, mL	Enrichment factor	Flow rate of preconcentration, mL/min	Average recovery, %	RSD of recovery, %
30.0	10	8.3	0.5	105.0	2.9
3.00	100	83	1.4	103.5	3.0
1.20	250	208	1.9	104.6	4.4
0.60	500	417	1.7	62.6	5.0