A novel solid phase extration technique is described where oxytetracyline is bound and eluted from magnetic molecularly imprinted polymers(MMIPs)in a manner where efficiency is dependent on the magnetic manipulation of the MMIPs on the microfluidic chip and not on the flow of solution through a packed bed.By effectively controlling the movement of the solid phase in a microchannel and maintaning consistent flow rates are eliminated.Preliminary results using the MMIPs-CE procedure developped indicate an achievement of analyte preconcentration up to a 100 times enrichment using small sample volume of 1 mL.Application of the procedure developed for oxytetracyline analysis in milk products delivers detection limits from 1.2 to 3.4 ng/L.The results achieved are capable of meeting the World Health Organization(WHO)guideline value for antibiotics detection in milk.