Methods High performance liquid chromatography and infraredspectrophotometry were used to determine its quality.
方法采用高效液相色谱法与红外分光光度法分析。
2
The application of CCD near infraredspectrophotometry (NIR) method to the analysis of red-fuming nitric acid is described.
从化学计量学角度研究了CCD近红外光谱技术在无机物领域分析中的应用。
3
Combining with experience of analyzing petroleum by infraredspectrophotometry and the lampblack of catering trade is monitored some thoughts are pointed out too.