Table 2 Recovery of fluridone, limit of quantification, and limit of detection on rotavapor and QuEChERS based analysis
From: Development of extraction and detection method for fluridone in water and sediment by HPLC-UV
Sample name | Spiked fluridone concentrations in samples (ppb) | Detected signal area (CC) | Observed fluridone concentrations by HPLC | Recovery percentage (%) | |
|---|---|---|---|---|---|
Rotavapor | R1 | 500 | 94,965 | 203.485 | 40.7 |
R2 | 500 | 177,633 | 396.377 | 79.3 | |
R3 | 500 | 146,492 | 323.715 | 64.7 | |
R4 | 500 | 141,065 | 311.052 | 62.2 | |
R5 | 500 | 116,953 | 254.790 | 51.0 | |
R6 | 500 | 141,997 | 313.226 | 62.6 | |
R7 | 500 | 138,216 | 304.404 | 60.9 | |
QuEChERS | Q1 | 500 | 31,208 | 301.204 | 60.2 |
Q2 | 500 | 34,901 | 348.637 | 69.7 | |
Q3 | 500 | 32,750 | 321.009 | 64.2 | |
Q4 | 500 | 31,746 | 308.114 | 61.6 | |
Q5 | 500 | 28,687 | 268.824 | 53.8 | |
Q6 | 500 | 30,911 | 297.389 | 59.5 | |
Q7 | 500 | 32,553 | 318.479 | 63.7 |
Slope (S) | Std. deviation (σ) | LOD (3.3σ/S) | LOQ (10σ/S) | ||
|---|---|---|---|---|---|
Rotavapor | 521.66 | 25,666.23 | 162.36 | 492.00 | |
QuEChERS | 77.86 | 1911.22 | 81.00 | 245.45 |