Table 2 Determination of intended dyes in TIWW samples with TF-SPME/UV-Vis approach.
Samples | Dyes | Spiked concentration (mg L−1) | Found concentration (mg L−1) | RR (%) | RSD (%) (n = 3) | ME (%) |
|---|---|---|---|---|---|---|
TIWW 1 (Qaem Shahr) | MO | - | 0.641 | - | 4.86 | - |
0.10 | 0.735 | 94.00 | 4.92 | 84.30 | ||
0.50 | 1.102 | 92.20 | 4.05 | 92.76 | ||
1.00 | 1.559 | 91.80 | 3.17 | 90.15 | ||
CR | - | 0.082 | - | - | - | |
0.10 | 0.175 | 93.00 | 5.04 | 88.61 | ||
0.50 | 0.588 | 101.20 | 4.66 | 87.22 | ||
1.00 | 1.065 | 98.30 | 4.11 | 91.80 | ||
TIWW 2 (Tajan) | MO | - | 0.112 | - | - | - |
0.10 | 0.204 | 92.00 | 3.98 | 91.54 | ||
0.50 | 0.483 | 96.60 | 4.22 | 95.38 | ||
1.00 | 1.137 | 102.50 | 3.92 | 92.75 | ||
CR | - | 0.209 | - | - | - | |
0.10 | 0.298 | 89.00 | 4.02 | 89.65 | ||
0.50 | 0.677 | 93.60 | 3.87 | 94.47 | ||
1.00 | 1.224 | 101.50 | 3.59 | 95.19 |
