表3.

7种苯氧羧酸类除草剂的回收率和精密度(n=5)

Analyte	Spiked/ (μg/L)	Recovery/ %	RSDs/%		Analyte	Spiked/ (μg/L)	Recovery/ %	RSDs/%
			Intra-day	Inter-day				Intra-day	Inter-day
4-CPA	0.005	80	5.7	4.2	2,4,5-T	0.005	88	4.7	6.0
	0.05	89	2.4	7.3		0.05	92	2.9	10.7
	0.2	92	1.4	5.6		0.2	89	4.7	6.0
PB	0.005	81	8.8	7.2	2,4-DB`	0.005	81	8.9	12.3
	0.05	93	4.4	6.0		0.05	85	7.9	12.6
	0.2	91	3.9	4.9		0.2	82	8.0	9.8
2,4-D	0.005	81	7.4	9.8	2,4,5-TP	0.005	102	9.4	10.8
	0.05	91	3.9	5.2		0.05	91	3.2	8.2
	0.2	89	3.1	4.6		0.2	88	3.1	8.2
MCPA	0.005	91	7.0	5.2
	0.05	92	3.0	7.3
	0.2	84	2.8	5.1