Method Validation and Measurement Uncertainty Estimation for Determination of Multiclass Pesticide Residues in Tomato by Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
Table 3
Trueness as % recovery and precision as % RSD of repeatability (within-laboratory reproducibility) of target pesticides in tomato matrix spiked at 5, 10, and 40 µg/kg.
S. N.
Pesticide
Trueness
Precision as repeatability (within-laboratory reproducibility)
5 (µg/kg) (n = 6)
10 (µg/kg) (n = 6)
40 (µg/kg) (n = 6)
5 (µg/kg)
10 (µg/kg)
40 (µg/kg)
% recovery
% RSD
1
3-Hydroxycarbofuran
93
94
86
4.7 (8.2)
3.2 (4.8)
2.3 (1.7)
2
Acephate
81
80
81
2.4 (8.5)
2.2 (6.4)
1.0 (2.8)
3
Alachlor
89
90
87
3.5 (14.5)
3.6 (5.0)
1.2 (1.6)
4
Aldicarb sulfone
89
90
87
3.8 (8.3)
3.3 (4.9)
1.7 (1.6)
5
Aldicarb sulfoxide
87
88
83
3.6 (5.9)
3.5 (3.5)
1.4 (1.5)
6
Aldicarb
87
83
83
2.0 (8.7)
2.2 (6.5)
1.2 (2.2)
7
Carbaryl
77
83
6.1 (11.7)
5.0 (3.7)
8
Carbendazim
91
86
92
3.1 (9.9)
2.1 (8.3)
1.1 (2.0)
9
Carbofuran
87
85
79
2.5 (12.6)
2.8 (7.5)
2.4 (3.7)
10
Cyprodinil
90
85
83
5.6 (5.5)
3.9 (4.0)
1.1 (1.6)
11
Dimethoate
90
88
88
4.5 (7.0)
2.3 (4.8)
0.9 (1.3)
12
Ethoprophos
91
90
90
2.4 (7.4)
3.0 (4.1)
1.0 (1.2)
13
Imazalil
90
82
78
4.3 (13.3)
4.3 (8.6)
2.9 (4.6)
14
Imidacloprid
104
120
110
5.0 (6.9)
4.9 (4.1)
1.3 (4.6)
15
Kresoxim-methyl
90
90
86
2.5 (6.2)
3.4 (2.8)
1.0 (1.8)
16
Metalaxyl
91
90
89
2.9 (5.6)
2.4 (3.2)
1.2 (1.1)
17
Methidathion
90
93
88
3.2 (6.8)
4.8 (3.6)
1.8 (1.8)
18
Methiocarb
91
93
86
2.1 (4.7)
3.5 (3.1)
1.4 (1.6)
19
Methomyl
90
92
87
5.3 (6.7)
4.0 (4.7)
1.2 (1.9)
20
Monocrotophos
87
90
88
2.9 (6.8)
2.9 (3.2)
1.2 (1.1)
21
Oxamyl
89
93
86
3.9 (7.0)
3.7 (3.2)
1.7 (1.5)
22
Penconazole
88
87
87
3.0 (6.4)
3.2 (4.2)
0.7 (1.4)
23
Propargite
87
83
86
3.1 (5.4)
2.5 (4.5)
1.4 (2.0)
24
Propoxur
90
90
84
1.9 (4.7)
2.1 (1.8)
1.1 (1.3)
25
Thiabendazole
93
88
88
2.4 (6.5)
2.9 (5.1)
1.4 (1.3)
26
Trichlorfon
106
117
113
3.4 (8.2)
4.1 (4.5)
0.8 (3.4)
For carbaryl, a recovery experiment was performed at the 10 µg/kg level.
