Rapid Screening and Quantitative Analysis of 74 Pesticide Residues in Herb by Retention Index Combined with GC-QQQ-MS/MS

Table 4

Results of methodological verification (n = 6).

Pesticides	Linear regression equation	R^2	LOD (μg/L)	LOQ (μg/L)	RSD for interday (%)	RSD for intraday (%)
Chlorpyrifos	Y = 402X + 3.55 × 10^3	0.9991	0.0225	0.0964	1.97	2.98
Fipronil	Y = 291X − 1.38 × 10^3	0.9996	0.0155	0.0565	1.44	3.17
Procymidone	Y = 594X + 2.91 × 10^3	0.9993	0.0088	0.0354	1.63	3.82