【摘要】 <正> 将双带火药直接溶解于四氢呋喃溶剂中,使呈一均匀高分子和低分子的混合溶液,再将此溶液引入到凝胶色谱体系中,使高、低分子得到分离。采用内标法,对分离后的双带火药的主要成分硝化纤维素（NC）,硝化甘油（NG）和中定剂（C₂）进行定量测定。更多还原

【Abstract】 NC, NG and C2 in double-base powder stripe have been separated and quantitatively determined by GpC using a 7.8× 300mm column comprised of two stainless steel tubes in series, packed with Ultrastyragel 50nm and 10nm, aad tetrahydrofuran as mobile phase with a R401 differential refraction detector- Polystyrene was used as the internal stanhard. The method is simple, rapid and accurate.更多还原