Table 3.

The matrix effect of cefquinome in milk.

Spiked concentration (ng/g)	0.2			10			20			40
Batch	1	2	3	1	2	3	1	2	3	1	2	3
ME (%)	20.35	43.67	49.62	−5.73	−11.88	2.15	−15.56	−17.05	−15.64	0.12	4.37	−3.62
Average ME(%)	37.88			−5.15			−16.08			0.29