Determination of Meclofenoxate Hydrochloride by Resonance Rayleigh Scattering Method Coupled with Flow Injection Technique

Integration of a facile sustainable resonance Rayleigh scattering switchable-based system for feasible determination of centrophenoxine, a nootropic and antioxidant agent; application to crude materials and dosage forms

The proposed research adheres to a certain methodology to ensure that the technique used for analyzing the centrophenoxine drug is sustainable and green. It is important to highlight that several tools that have been recently developed were utilized as potential indicators of environmental sustainability and applicability. The present research presents a novel and entirely innovative method utilizing ultrasensitive spectrofluorimetry for the detection of centrophenoxine (CPX) drug. The employed methodology in this study involved the utilization of one-step, one-pot, and direct spectrofluorimetric technique, which was found to be both efficient and environmentally sustainable in the validation and assessment of the drug. Simply, when CPX and erythrosine B reagent were combined in an acidic environment, the highly resonance Rayleigh scattering product was immediately produced. The sensitivity limits were observed to be within the range of 15-47 ng mL-1, whereas the linearity was assessed to be in the range of 50-2000 ng mL-1. The optimal settings for all modifiable parameters of the system were ascertained through an analysis of centrophenoxine-erythrosine B complexes. Moreover, the system demonstrated compliance with International Council for Harmonization (ICH) specifications without encountering any issues. The suggested process was then rated on different recent environmental safety measuring metrics to see how good it was for the environment. Fortunately, the WAC standards that combine ecological and functional elements utilizing the Green/Red/Blue (RGB 12) design also acclaimed the current analytical technique as a white one. Additionally, a new applicability evaluation tool (BAGI) was employed to estimate the practicability of the planned method in the analytical chemistry field.

A green fluorescence turn-off system for meclofenoxate determination by Cilefa Pink B dye

Because of their high extinction indices, high quantum yields, and propensity to attach to biomolecules, xanthene dyes, and related compounds have attracted more attention for analytical drug labelling and monitoring. The halogen-substituted xanthene dye, Cilefa Pink B, has also been adapted for usage in the food and pharmaceutical industries as well as for diagnostic purposes. Cilefa Pink B dye is a promising reagent for the quantitative analysis of numerous analytes due to its natural fluorescence characters. MFX is a powerful antioxidant serving as a nootropic agent, motivating glucose uptake and oxygen levels and improving metabolic energy in the brain. The first novel fluorimetric method for quantifying the cerebral circulatory enhancer meclofenoxate is presented in this article. This study used a green, single-pot, and direct fluorimetric strategy to quantify and validate meclofenoxate. A rapid association complex was designed using meclofenoxate and the Cilefa Pink B dye in a weakly acidic solution. The fluorometric assay was performed based on the turn-off effect of meclofenoxate on the fluorescence magnitude of the bio pigment (Cilefa Pink B) at 556.5 nm. The linearity is within the range of 0.08-1.9 μg mL-1. Regarding all system parameters, meclofenoxate-Cilefa Pink B coupled complexes were regulated analytically. The system was compliant with ICH guidelines as well. Meclofenoxate in indicated therapy dosage forms was successfully recovered using the designed procedure. The planned fluorescence detection approach has also been effectively utilized to monitor the analyte of interest in its crude and commercial forms. Additionally, the reaction kinetics were studied further, and the product was characterized and confirmed spectroscopically. An eco-scale was applied to rate the environmental friendliness of the designed method.