Table 4.
Comparsion of MSPE-DLLME-HPLC/UV with other methods for the determination of industrial dyes.
| Methods | Analytes | Analytes in common | Matrix | Extraction Solvent | Volume (μL) | LOD (μg∙L−1) | Precision (RSD%) | EF | Recovery (%) | References |
|---|---|---|---|---|---|---|---|---|---|---|
| MSPE-HPLC/FLD | Malachite green, Gentian violet, Leuomalachite green, Leucogentian violet | Malachite green | Aquafarm water | — | — | 0.09–0.22 | 2.7–6.5 | 91–95 | 87.0–92.8 | 3 |
| MCPE-UV/Vis | Malachite green, Crystal violet, Rhodamine B | Malachite green, Crystal violet | Tap water; Wastewater | — | — | 2.2–5.1 | 4.5–8.39 | 29.26–85.47 | 59.5–115.0 | 25 |
| S-FF-DSPE-UV/Vis | Methylene blue | Methylene blue | Tap water; River water | — | — | 2.5 | 2.9 | 135 | 99.0–109.0 | 26 |
| DLLME-HPLC/UV | Malachite green, Crystal violet | Malachite green, Crystal violet | Upriver water | [C8MIM]PF6 | 80 | 0.030–0.086 | 7.6–9.4 | 254–276 | 71.7–97.2 | 27 |
| SM-DLLME-UV/Vis | Malachite green | Malachite green | Textile industry wastewater | Decanoic acid -tetrahydrofuran | 45500–500 | 4 | 1.8 | 52 | 85.3–108.6 | 28 |
| MSPE-DLLME-HPLC/UV | Malachite green, Crystal violet, Methylene blue | — | Drinking water; Running water; Influent wastewater; Effluent wastewater; River water | [Hpy]NTf2 | 70 | 0.03–0.05 | 1.2–2.6 | 484–502 | 86.1–100.3 | Represented method |