Table 9.

Results of stability test performed with 1 g test portions at ambient temperature.

Recovery Tests with 0.2 mg/kg Spike						Survived Residues [mg/kg]
	Residues Measured [mg/kg]
	Bu	Ch	Etri	Etox		Bu	Ch	Etri	Etox
	0.177	0.165	0.137	0.176		0.161	0.157	0.122	0.139
	0.186	0.182	0.156	0.176		0.173	0.180	0.117	0.165
	0.204	0.183	0.151	0.153		0.129	0.116	0.100	0.133
	0.178	0.152	0.164	0.170		0.142	0.128	0.108	0.132
	0.169	0.169	0.150	0.164		0.135	0.137	0.106	0.125
$\overline{\rho }$	0.913	0.852	0.758	0.840	$\overline{\rho }$	0.207	0.231	0.176	0.217
CVA	0.015	0.015	0.013	0.011	CVL	0.698	0.937	0.908	0.885

Notes: Ch: chlorpyrifos, Etri: etridiazole; Etox: etoxazole; $\overline{\mathsf{\rho }}$: average recovery. The Table shows rounded values, but the calculations were performed with four-digit numbers.