紫外光谱法检测单基发射药中二苯胺含量
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摘要
通过紫外-可见全波段扫描绘制出二苯胺的吸收光谱图,得出二苯胺的最大吸收波长为285 nm,在该波长时测试绘制二苯胺标准曲线,利用皂化蒸馏法实现了单基药中二苯胺的分离,经乙醇稀释后可直接在紫外光区测试其吸光度,根据线性回归方程计算出二苯胺含量,通过数据分析及与溴化法的比较验证了紫外光谱测试法的准确性和重现性。
The diphenylamine content in single-base propellant was determined by using the ultraviolet spectroscopy. The maximum absorption wavelength of diphenylamine was measured 285 nm through all band ultraviolet scanning. The linear regression analysis between absorbance and solution concentration was carried out and linear equation was obtained. The diphenylamine was separated from single-base propellant using saponification and distillation method and scanned using ultraviolet spectroscopy under the wavelength of 285 nm in order to gain the absorbance of diphenylamine solutions. Subsequently,the diphenylamine content could be calculated based on the linear equation of absorbance and solution concentration. The bromination testing result of diphenylamine content in single-base propellant also verified the accuracy of ultraviolet spectroscopy.
The diphenylamine content in single-base propellant was determined by using the ultraviolet spectroscopy. The maximum absorption wavelength of diphenylamine was measured 285 nm through all band ultraviolet scanning. The linear regression analysis between absorbance and solution concentration was carried out and linear equation was obtained. The diphenylamine was separated from single-base propellant using saponification and distillation method and scanned using ultraviolet spectroscopy under the wavelength of 285 nm in order to gain the absorbance of diphenylamine solutions. Subsequently,the diphenylamine content could be calculated based on the linear equation of absorbance and solution concentration. The bromination testing result of diphenylamine content in single-base propellant also verified the accuracy of ultraviolet spectroscopy.
引文
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[2]阴春梅.紫外-可见分光光度法在水质分析监测中的应用研究[J].资源节约与环保,2016(5):45.
[3]苌轲.环保监测中紫外可见分光光度计的应用探析[J].河南科技,2014(4):195-196.
[4]贾锐.谈紫外-可见分光光度法在药物分析中的应用[J].中国石油和化工标准与质量,2011(6):34.
[5]岳展鹏,王贤英.紫外分光光度法测定参芪三七胶囊中总皂苷含量[J].中国药业,2017,26(1):22-24.
[6]顾燕平.紫外分光光度计在食品检测中的应用[J].轻工科技,2013(3):94.
[7]王秋艳,李晓霞,马云秀.分光光度法测定赛克洛托炸药组分的含量[J].化学分析计量,2011,20(增刊):125-126.
[8]李生彬,饶姗姗,王雯,等.直接紫外光度法测定炸药废水中TNT含量[J].光谱实验室,2004,21(5):1024-1027.
[9]国防科学技术工业委员会. GJB770B—2005火药试验方法[S].北京:国防科工委军标出版发行部,2005.
[10]张寒琦.仪器分析[M]. 2版.北京:高等教育出版社,2011.