红外光谱测试结果表明，催化剂表面主要存在L酸中心。
IR pattern indicated that Lewis acid centers mainly exist on the catalyst surface.
然后对样品进行透射红外光谱测试，确定整个样品的成分组成。
Then the sample goes through transmission infrared ray test to determine the components of the whole sample.
本文重点对使用过程中的旧油进行红外光谱测试，分析烟炱对粘度增长的影响。
This paper pay much attention to analyse the soot influence on viscosity increase, based on testing the infrared spectrum of the old being used oil.
应用推荐