| Analyte | Spiking level (µg/L) | Lake Hawassa water samples | Wonji Shoa sugarcane irrigation water samples | Sugarcane juice samples |
| %RR (%RSD, n = 3) | %RR (%RSD, n = 3) | %RR (%RSD, n = 3) | ||
| Atrazine | 0 | nd | d (4.12 µg/L) | nd |
| 0.25 | 90.34 (7.49) | 114.05 (5.22) | 93.75 (5.85) | |
| 5 | 108.60 (3.45) | 104.03 (2.45) | 110.48 (4.83) | |
| Diazinon | 0 | nd | nd | nd |
| 0.25 | 110.52 (1.00) | 96.38 (0.27) | 81.40 (5.18) | |
| 5 | 109.08 (5.69) | 81.53 (5.26) | 91.46 (7.74) | |
| Chlorothalonil | 0 | nd | nd | nd |
| 0.25 | 95.94 (8.79) | 83.04 (3.38) | 83.85 (9.73) | |
| 5 | 110.08 (5.58) | 95.73 (10.47) | 98.65 (10.68) | |
| Ametryn | 0 | d (1.45 µg/L) | d (4.80 µg/L) | d (7.06 µg/L) |
| 0.25 | 80.63 (7.97) | 86.52 (4.87) | 82.00 (6.68) | |
| 5 | 85.53 (5.55) | 98.36 (3.75) | 80.39 (4.59) | |
| Malathion | 0 | nd | nd | nd |
| 0.25 | 97.43 (0.96) | 84.46 (7.67) | 81.71 (1.95) | |
| 5 | 108.34 (2.46) | 90.05 (7.18) | 111.52 (3.26) | |
| Chlorpyrifos | 0 | nd | nd | nd |
| 0.25 | 99.98 (1.55) | 103 (6.10) | 90.57 (5.31) | |
| 5 | 110.33 (2.20) | 82.59 (1.52) | 81.67 (0.70) | |
| Dimethametryn | 0 | nd | nd | nd |
| 0.25 | 94.97 (9.48) | 80.48 (2.42) | 84.20 (10.70) | |
| 5 | 112.46 (4.75) | 85.99 (5.41) | 100.71 (7.45) |