聚焦微波消解-火焰原子吸收光谱法测定发射药中的钾元素  

Determination of K in propellant sample by flame atomic absorption spectrometry with focused microwave assisted digestion

作　　者：王景荣[1] 岳璞[1] 任春燕[1] 赵娟[1] 张瑜 何可维 WANG Jing-rong;YUE Pu;REN Chun-yan;ZHAO Juan;ZHANG Yu;HE Ke-wei(Xi’an Modern Chemistry Research Institute,Xi’an 710065,China)

机构地区：[1]西安近代化学研究所,陕西西安710065

出　　处：《应用化工》2020年第S02期317-319,共3页Applied Chemical Industry

摘　　要：以某改性单基发射药为研究对象,采用聚焦微波消解法,将试样消解为试样溶液,以火焰原子吸收法测定其中的钾元素含量,结果表明,钾元素的平均回收率为104.3%(n=7),相对标准偏差(RSD)为3.47%(n=7),其测定结果与传统电热板消解法无显著性差异,消解时间缩短1 h。A new method for respective determination of K in modified single base propellant sample was proposed by flame atomic absorption spectrometry with focused microwave assisted digestion.The results of determining K in the modified single base propellant,show that the RSD(relative standard deviations)is 3.47%(n=7)and the average recovery is 104.3%.The result of atomic absorption spectrometry with the focused microwave assisted digestion method shows no significant difference with that of the traditional digestion by electic heating plate,the digestion time decrease 1 hour as well.

关 键 词：分析化学 改性单基发射药 微波消解 火焰原子吸收光谱法 钾 

分 类 号：O657.39[理学—分析化学]