Development of a Solid-Phase Extraction (SPE) Cartridge Based on Chitosan-Metal Oxide Nanoparticles (Ch-MO NPs) for Extraction of Pesticides from Water and Determination by HPLC
Table 3
Statistical data from regression analysis of different pesticides obtained from the study with analytical HPLC methods.
Pesticide
Rt (min) ± SD
As ± SD
Regression equation
R2
LOD (μg/mL)
LOQ (μg/mL)
Abamectin
7.999 ± 0.01
0.871 ± 0.00
y = 4523.45190x-2.70225
0.9998
0.023
0.077
Diazinon
7.975 ± 0.00
0.870 ± 0.01
y = 1177.60010x+0.42100
0.9999
0.046
0.154
Fenamiphos
3.374 ± 0.01
0.885 ± 0.01
y = 3214.11453x+0.89949
0.9997
0.002
0.006
Imidacloprid
3.647 ± 0.00
0.853 ± 0.04
y = 4728.25710x+0.794634
0.9998
0.020
0.066
Lambda-cyhalothrin
10.761 ± 0.05
0.923 ± 0.05
y = 2874.16095x+0.431849
0.9999
0.012
0.040
Methomyl
2.795 ± 0.03
0.953 ± 0.00
y = 4972.13330x+3.61685
0.9997
0.018
0.059
Thiophanate-methyl
4.566 ± 0.01
1.070 ± 0.00
y = 3412.34475x+11.24269
0.9997
0.024
0.081
Rt: retention time. As: peak asymmetry factor. R2: linear correlation coefficient. LOD: limit of detection. LOQ: limit of quantification.
