Estimation of Diafenthiuron Residues in Cardamom (Elettaria cardamomum (L.) Maton) Using Normal Phase HPLC: Dissipation Pattern and Safe Waiting Period in Green and Cured Cardamom Capsules

Table 2

Dissipation of diafenthiuron in/on capsules of cardamom—Experiment II, Devarshola.

DAT	Green capsules				Cured capsules				Moisture free basis
	Diafenthiuron 400 g a.i ha^−1		Diafenthiuron 800 g a.i ha^−1		Diafenthiuron 400 g a.i ha^−1		Diafenthiuron 800 g a.i ha^−1		Diafenthiuron 400 g a.i ha^−1		Diafenthiuron 800 g a.i ha^−1
	Residues (µg g^−1)	Dissipation (%)	Residues (µg g^−1)	Dissipation (%)	Residues (µg g^−1)	Dissipation (%)	Residues (µg g^−1)	Dissipation (%)	Residues (µg g^−1)	Dissipation (%)	Residues (µg g^−1)	Dissipation (%)
0	4.10	—	7.32	—	5.33	—	8.40	—	14.83	—	25.71	—
1	3.51	14.39	5.81	20.63	4.14	22.33	6.63	21.07	11.98	19.18	20.70	19.48
3	2.03	50.49	4.23	42.21	3.12	41.46	5.61	33.21	7.21	51.39	14.83	42.31
7	0.86	79.02	1.93	73.63	1.13	78.80	3.13	62.74	3.23	78.23	6.99	72.81
10	0.09	97.80	0.92	87.43	0.21	96.06	1.24	85.24	0.33	97.88	3.27	87.28
15	BDL	—	BDL	100.00	BDL	100.00	0.22	97.26	BDL	100.00	BDL	100.00
21	BDL	—	BDL	—	BDL	—	BDL	—	BDL	—	BDL	—
Half life (days)	1.949		3.416		1.778		3.015		2.815		3.441
Waiting period (days)	5.500		11.339		7.006		11.387		9.168		17.750
𝑟 value	0.958		0.999		0.972		0.977		0.954		0.997
Regression equation	𝑌=1.657−0.356𝑥		𝑌=2.001−0.203𝑥		𝑌=1.843−0.306𝑥		𝑌=2.318−0.230𝑥		𝑌=2.917−0.351𝑥		𝑌=3.266−0.201𝑥

BDL: below detectable limit.