potassium-permanganate has been researched along with fluorexon* in 2 studies
2 other study(ies) available for potassium-permanganate and fluorexon
| Article | Year |
|---|---|
Silver nanoparticles enhanced flow injection chemiluminescence determination of gatifloxacin in pharmaceutical formulation and spiked urine sample.
Silver nanoparticles have been utilized for the enhanced chemiluminogenic estimation of fluoroquinolone antibiotic gatifloxacin. It has been found that the weak chemiluminescence intensity produced from the reaction between calcein and KMnO4 can further be strengthened by the addition of silver nanoparticles in the presence of gatifloxacin. This phenomenon has been exploited to the quantitative determination of gatifloxacin. Under the optimum experimental conditions, the calibration curves are linear over the range of 8.9×10(-9)-4.0×10(-6) M, while the limits of detections were found to be 2.6×10(-9) M with correlation coefficient value (r(2)) 0.9999. The relative standard deviation calculated from six replicate measurements (1.0×10(-4) M gatifloxacin) was 1.70%. The method was applied to pharmaceutical preparations and the results obtained were in reasonable agreement with the amount labeled on the formulations. The proposed method was also used for the determination of gatifloxacin in spiked urine samples with satisfactory results. No interference effects from some common excipients used in pharmaceutical preparations have been found. Topics: Adult; Chemistry, Pharmaceutical; Flow Injection Analysis; Fluoresceins; Fluoroquinolones; Gatifloxacin; Humans; Luminescent Measurements; Metal Nanoparticles; Middle Aged; Oxidants; Potassium Permanganate; Silver; Sodium Hydroxide; Spectrophotometry, Ultraviolet | 2015 |
Determination of fenfluramine based on potassium permanganate-calcein chemiluminescence system.
Calcein was found to be able to use as chemiluminescence reagent and post-chemiluminescence was observed when fenfluramine was injected into the mixture after the CL reaction of calcein-potassium permanganate. Based on this phenomenon, a flow injection CL method was established for the determination of fenfluramine. The possible CL mechanism was proposed. The CL intensity was correlated linearly with the concentration of fenfluramine over the range of 1.0 x 10(-7) to 6.0 x 10(-6) g mL(-1) and the detection limit was 6 x 10(-8) g mL(-1). The relative standard deviation was 2.2% for 5.0 x 10(-7) g mL(-1) fenfluramine (n=11). This method was applied to the determination of fenfluramine in weight-reducing tonic successfully. Topics: Fenfluramine; Flow Injection Analysis; Fluoresceins; Indicators and Reagents; Luminescent Measurements; Potassium Permanganate; Reference Values; Reproducibility of Results | 2008 |