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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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红外法快速测定聚丙烯中抗氧剂的含量
DOI: 10.3969/j.issn.1671-7627.2006.01.016, PP. 71-74
Keywords: 红外光谱,定量测定,抗氧剂,聚丙烯
Abstract:
介绍了用ftir法测定聚丙烯中抗氧剂含量的方法.采用外标法,分析确定了波数为1682cm-1作为抗氧剂a的特征峰,该处基本上不受聚丙烯和其它添加剂的出峰干扰,抗氧剂的含量与其红外吸收峰的强度在实验浓度范围内有良好的线性关系,相关系数达0.997.用标准曲线测定了未知样中抗氧剂a含量,抗氧剂a的相对误差小于4.5%.此方法为确定聚丙烯生产装置中抗氧剂的加入量及监控产品质量提供了新的分析测试手段,制样、测试简单方便、准确,有很好的推广价值和应用前景.
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