|本期目录/Table of Contents|

[1]刘红妮,张皋,苏鹏飞,等.利用全自动定氮仪测定硝化棉的含氮量[J].火炸药学报,2017,40(4):66-69.[doi:10.14077/j.issn.1007-7812.2017.04.012]
 LIU Hong-ni,ZHANG Gao,SU Peng-fei,et al.Determination of Nitrogen Content in Nitrocellulose by Fully Automatic Nitrogen Determination Analyzer[J].,2017,40(4):66-69.[doi:10.14077/j.issn.1007-7812.2017.04.012]
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利用全自动定氮仪测定硝化棉的含氮量()
     
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《火炸药学报》[ISSN:1007-7812/CN:61-1310/TJ]

卷:
40卷
期数:
2017年第4期
页码:
66-69
栏目:
出版日期:
2017-08-30

文章信息/Info

Title:
Determination of Nitrogen Content in Nitrocellulose by Fully Automatic Nitrogen Determination Analyzer
作者:
刘红妮 张皋 苏鹏飞 胡玲 罗红艳
西安近代化学研究所, 陕西 西安 710065
Author(s):
LIU Hong-ni ZHANG Gao SU Peng-fei HU Ling LUO Hong-yan
Xi’an Modern Chemistry Research Institute, Xi’an 710065, China
关键词:
硝化棉含氮量NC全自动定氮仪测量精度合金还原法
Keywords:
nitrocellulosenitrogen contentNCfully automatic nitrogen determination analyzermeasurement precisionalloy reduction method
分类号:
TJ55;O65
DOI:
10.14077/j.issn.1007-7812.2017.04.012
文献标志码:
-
摘要:
采用自行研制的全自动定氮仪测定硝化棉的含氮量,研究了样品前处理条件、全自动定氮仪实验参数对检测结果的影响;讨论了实验的准确性与重复性,对全自动定氮仪法与传统合金还原法进行了比较。结果表明,样品前处理采用石墨炉加热,梯度升温的皂化模式;最佳实验参数为:蒸汽体积分数80%、预热30s、还原反应7min、硼酸体积35mL、蒸馏时间8min;与传统合金还原法相比,采用全自动定氮仪检测硝化棉含氮量的方法用时少、操作简单,自动化程度高,减少了人为误差的影响,可保证结果的精度和准确性。
Abstract:
Nitrogen content in nitrocellulose was determined by self-developed fully automatic nitrogen determination analyzer. The effects of sample pretreatment conditions and experimental parameters of fully automatic nitrogen determination analyzer on the results were studied. The accuracy and repeatability of test were discussed. Comparison of fully automatic nitrogen determination analyzer method and traditional alloy reduction method was performed. The results show that the sample pretreatment is carried out by graphite oven heating and temperature gradient mode of saponification, the optimum experimental parameters are determined as steam volume fraction of 80%, preheating time of 30s, reduction reaction time of 7min, boric acid solution volume of 35mL, distillation time of 8 min, indicating that the method of nitrogen content in nitrocellulose detected by fully automatic nitrogen determination analyzer is easy to operate with less time,and can ensure the precision and accuracy of the results.

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备注/Memo

备注/Memo:
收稿日期:2016-11-02;改回日期:2017-02-22。
基金项目:国防科工局技术基础计量项目(J092012A005)
作者简介:刘红妮(1977-),女,高级工程师,从事火炸药理化分析研究。E-mail:winny_521@163.com
通讯作者:张皋(1965-),男,研究员,从事火炸药理化检测研究。E-mail:zgg1965@163.com
更新日期/Last Update: 2017-08-30