Rapid Residue Analysis of Phthalanilic Acid in Cereals and Oilseed Rape by High-Performance Liquid Chromatography Coupled to Tandem Mass Spectrometry

Table 3

The terminal residues of phthalanilic acid in wheat grains, wheat straw, and rapeseeds.

Crops	Dose (mg·kg^−1)	Spray times	Interval to harvest (d)	Residue (mg·kg^−1)	HR (mg·kg^−1)
Wheat grains	200	2	30–50	<0.01 (12)	0.01
Wheat straw				<0.05 (8), 0.056, 0.078, 0.17, 0.52	0.52
Rapeseeds	266.6	2	27∼75	<0.02 (10)	0.02

Note. Average of 2 samples; HR, highest residue.