a green approach for photometric determination of copper β-resorcylate in double base solid propellants

This paper describes the applicability of micellar media instead of extraction steps with toxic solvents for direct determination of copper beta-resorcylate as burning rate catalyst in double base propellant (db propellant). the method is based on a simple and safe sample preparation of db propellant, and then complex formation of copper ion with diethyldithiocarbamate (ddtc) in the presence of sodium dodecyl sulfate (sds) as a micellar media. under optimal conditions, at λmax= 445 nm, the calibration graph was linear in the range of 0.25-4.5 μg ml^-1 for copper with detection limits 0.125 μg ml^-1. the validity of the method was evaluated by means of the data statistical analysis. for this purpose, the method was applied to the determination of copper beta-resorcylate in db propellant and the results were statistically compared based on t- and f-tests with those obtained by the by icp-aes. there was no significant difference between the mean values and the precisions of the two methods at the 95% confidence level. the results showed that the proposed method offers an accuracy and reliable approach for the determination of copper β-resorcylate in db propellant, and can be suggested as a routine method in military quality control laboratories.