Simultaneous kinetic spectrophotometric determination of nitroglycerin andnitrocellulose in double base solid propellants

The proposed method is based on alkaline hydrolysis of NG and NC, and followed by colored reactionof released nitrite with a diazotizable aromatic amine in acidic media and produce azo product and finallysimultaneous determination of NG and NC was done by mean centering of ratio kinetic profiles that allows rapidand accurate determination of NG and NC. Under optimum conditions, the results allow simultaneousdetermination of NG and NC in the range of ۰.۲-۵.۰ μg mL-۱ and ۰.۵-۱۰ μg mL-۱, respectively. The limit ofdetections was ۰.۱ μg mL-۱ and ۰.۲۵ μg mL-۱ for NG and NC respectively. The relative standard deviations (RSD)were <۴%. In comparison with military standard ۲۸۶ the relative errors were obtained between -۳.۱- ۲.۳ %

کلیدواژه ها:

Nitroglycerine ، Nitrocellulose ، Simultaneous spectrophotometric determination ، Mean centering ofratio kinetic profiles ، DB solid propellants