Parameters | Proposed methods | Reported methods |
---|---|---|
Analytical reagent | CE method: ––– | RP-HPLC [7]: 1-Hexane sulfonic acid sodium monohydrate salt Stability-Indicating RP-LC [8]:––– UPLC-PDA [9]: ––– AUC Spectrophotometric method [10]: ––– Thermal analysis Spectrophotometric method [11]: Copper acetate reagent for visible method Fluorimetric method [12]: ––– |
Spectrophotometric method Method I: ––– Method II: ––– Method III: MBTH (chromogenic reagent) | ||
λmax | CE method: 245 nm | RP-HPLC [7]: 247 nm Stability-Indicating RP-LC(8): 280 nm UPLC-PDA [9]: 350 nm AUC Spectrophotometric method [10]:between 240 to 256 nm Thermal analysis Spectrophotometric method [11]: 245 nm for UV method and 378 nm for visible method Fluorimetric method [12]: λex = 333 nm and λem = 453 nm |
Spectrophotometric methods Method I: from peak to peak at 334–372 nm Method II ∆A: from peak to peak at 342–401 nm Method II D1: from peak to peak at 279–311 nm Method III: 409 nm | ||
Linearity range | CE method: 5–300 µg/mL | RP-HPLC [7]:40–60 µg/mL Stability-Indicating RP-LC [8]: 40–100 µg/mL UPLC-PDA [9]: 0.024 to 6 µg/mL AUC Spectrophotometric method [10]: 4–20 µg/mL Thermal analysis Spectrophotometric method [11]: 10–22 µg/mL for UV method and 10–34 µg/mL for visible method Fluorimetric method [12]: 0.1–2.0 µg/mL |
Spectrophotometric methods Method I: 20–200 µg/mL Method II ∆A and D1: 40–140 µg/mL Method III: 20–140 µg/mL | ||
LOQ | CE method: 3.25 µg/mL | RP-HPLC [7]: 5.42 µg/mL Stability-Indicating RP-LC [8]: 5.05 µg/mL UPLC-PDA [9]: 0.024 µg/mL AUC Spectrophotometric method [10]: 0.08 µg/mL Thermal analysis Spectrophotometric method [11]:1.00 µg/mL for UV method and 0.89 µg/mL for visible method Fluorimetric method [12]: 0.1 µg/mL |
Spectrophotometric methods Method I: 11.46 µg/mL Method II ∆A: 17.02 µg/mL Method II D1: 15.58 µg/mL Method III: 20.00 µg/mL | ||
LOD | CE method: 0.98 µg/mL | RP-HPLC [7]: 1.8 µg/mL Stability-Indicating RP-LC [8]: 1.67 µg/mL UPLC-PDA [9]: 0.006 µg/mL AUC Spectrophotometric method [10]: 0.02 µg/mL Thermal analysis Spectrophotometric method [11]:0.33 µg/mL for UV method and 0.29 µg/mL for visible method Fluorimetric method [12]: 0.033 µg/mL |
Spectrophotometric methods Method I: 3.78 µg/mL Method II ∆A: 5.62 µg/mL Method II D1: 5.14 µg/mL Method III: 8.06 µg/mL | ||
Correlation coefficient | CE method: 0.9999 | RP-HPLC [7]: 0.9999 Stability-Indicating RP-LC [8]: 0.9997 UPLC-PDA [9]: > 0.995 AUC Spectrophotometric method [10]: 0.9991 Thermal analysis Spectrophotometric method [11]: 0.9998 for UV method and 0.9997 for visible method Fluorimetric method [12]: 0.9997 |
Spectrophotometric methods Method I: 0.9997 Method II ∆A: 0.9995 Method II D1: 0.9994 Method III: 0.9990 |