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高频燃烧红外吸收光谱法测定高纯铝粉中碳含量
殷艺丹
(宁夏石嘴山市稀有金属特种材料国家重点实验室)
Determination of carbon in High Purity Aluminum Powder by High-frequency Combustion Infrared Absorption Spectrometry
Yin yidan
(State Key Laboratory of Special Rare Metal Materials, Shizuishan,Ningxia , China)
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投稿时间:2020-06-01    修订日期:2020-06-05
中文摘要: 高纯铝粉在粉末冶金领域应用广泛,其碳含量的高低对材质的物理性能有较大影 响,研究快速准确测定高纯铝粉中碳含量方法具有实际意义。本文采用高频感应燃烧红外碳 硫仪测定高纯铝粉中碳含量,优化实验条件,建立高纯铝粉中碳含量测定的高频燃烧红外吸 收光谱法。实验验证:称取0.1g试样,在1980W分析功率下,按照2.4g:0.2g:0.2g比例搭 配钨、锡、铁助熔剂碳分析效果最佳。将该方法应用于试样中(质量分数=0.023%)碳的测 定,相对标准偏差RSD=3.65,(n=11)。在试样中加入碳标准物质进行加标回收试验,回收 率为99%~102.0%。方法检出限为0.0003%,测定下限为0.0030%。该方法满足高纯铝粉中 碳含量的快速检测要求。
中文关键词: 高频燃烧  红外吸收光谱法  铝粉    助熔剂
Abstract:High purity aluminum powder is widely used in the field of powder metallurgy. Its carbon content has a great influence on the physical properties of materials. It is of practical significance to study the method of rapid and accurate determination of carbon content in high purity aluminum powder. In this paper, the carbon content in high-purity aluminum powder was determined by high-frequency induction combustion infrared carbon sulfur instrument. The results show that when the sample weighing is 0.1g, the flux is W+Sn+Fe=2.4g+0.2g+0.2g and the analytical power is 90% is the best condition of the experiment. The method was applied to the determination of carbon in the sample (mass fraction = 0.023%), RSD = 3.65, (n = 11). Carbon standard substance was added to the sample for standard addition recovery test. The recovery was 99% - 102.0%. The detection limit was 0.0003% and the lower limit was 0.0030%. This method can meet the requirement of rapid detection of carbon content in high purity aluminum powder.
文章编号:20200601002     中图分类号:    文献标志码:
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引用文本:
殷艺丹.高频燃烧红外吸收光谱法测定高纯铝粉中碳含量[J].中国无机分析化学,2021,(2):-.
Yin yidan.Determination of carbon in High Purity Aluminum Powder by High-frequency Combustion Infrared Absorption Spectrometry[J].Chinese Journal of Inorganic Analytical Chemistry,2021,(2):-.

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