摘要
利用自行组装的实验装置,采用氢气提取-电导法测定了AlN粉末中硫量。确定了最佳分析条件:生成H2S的温度1000℃,氢气流速400mL/min,吸收液体积20mL,吸收时间20min,试样质量0 1000g。建立的分析方法简单可靠,相对标准偏差为5%左右。仪器的灵敏度为3×10-6g/μS,检出限为1μg/g。
With an experimental device self-assembled,sulphur content in aluminium nitride was determined by hydrogen extraction-electric conductance method.Optimal conditions for the determination of sulphur were as follows:temperature for forming H_2S of 1?000 ℃,flow capacity of hydrogen of 400 mL/min,volume of absorption solution of 20 mL,absorptive time of 20 min,sample mass of 0.100?0 g.The present method is simple and reliable.The relative standard deviation is about 5%.The sensitivity of the instrument is 3×10~...
出处
《冶金分析》
CAS
CSCD
北大核心
2004年第2期73-75,共3页
Metallurgical Analysis
关键词
氮化铝
硫
氢气提取-电导法
aluminium nitride
sulphur
hydrogen extraction-conductance method
