表 3.

唑虫酯及其氧化产物异构体的线性关系和基质效应

Analyte	Matrix	Linear range/(μg/L)	Standard curve	R2	Matrix effect/%
RS-Pyr	acetonitrile	0.25-500	Y=8.7×107X-1.6×104	0.9999
	water spinach	1.25-1250	Y=1.1×108X+4.3×105	0.9998	26.8
	pakchoi	1.25-1250	Y=9.3×107X+1.3×105	0.9999	6.1
SS-Pyr	acetonitrile	0.25-500	Y=1.1×108X-2.6×103	0.9999
	water spinach	1.25-1250	Y=1.1×108X+5.1×105	0.9998	1.9
	pakchoi	1.25-1250	Y=1.2×108X+1.6×106	0.9987	10.2
RR-Pyr	acetonitrile	0.25-500	Y=1.1×108X+3.4×104	0.9999
	water spinach	1.25-1250	Y=1.1×108X+5.0×105	0.9998	0.7
	pakchoi	1.25-1250	Y=1.2×108X+1.6×106	0.9987	9.0
SR-Pyr	acetonitrile	0.25-500	Y=9.2×107X+1.4×104	0.9999
	water spinach	1.25-1250	Y=1.1×108X+4.4×105	0.9998	20.7
	pakchoi	1.25-1250	Y=1.2×108X+1.4×106	0.9988	30.6
S-(Pyr+O)	acetonitrile	0.5-100	Y=6.5×107X+2.1×104	0.9999
	water spinach	2.5-2500	Y=6.9×107X+8.3×105	0.9996	7.3
	pakchoi	2.5-2500	Y=7.6×107X+2.2×106	0.9981	17.1
R-(Pyr+O)	acetonitrile	0.5-100	Y=6.6×107X+2.7×104	0.9999
	water spinach	2.5-2500	Y=7.2×107X+6.9×105	0.9997	9.0
	pakchoi	2.5-2500	Y=7.8×107X+2.0×106	0.9999	18.2

Y: peak area; X: mass concentration, μg/L; R²: correlation coefficient.