Table II. Approximate detection/quantification limits for
Paraquat/Diquat usingSimplifiedHPLCUVmethod
On column limit of detection
(LOD): 0.12ng
Sample
Injection
Limit of
Limit of
Volume
Volume
Detection
Quantification
(mL)
(µL)
(ppb)
(ppb)
1
20
6
20
100
20
0.06
0.2
250
20
0.024
0.08
1000
20
0.006
0.02
1
100
1.2
4
100
100
0.012
0.04
250
100
0.0048
0.016
1000
100
0.0012
0.004
1
200
0.6
2
100
200
0.006
0.02
250
200
0.0024
0.008
1000
200
0.0006
0.002
On column limit of quantification
(LOQ): 0.4ng
