The main purpose of this experiment is to detect the silica content in kaolin, using the following equipment:iCAN 9Fourier transform infrared spectrometer transmission attachment. Test method: Resolution4cm-1Spectral scanning frequency32 Next time. Silicon dioxide in clay.Select the corresponding standard sample and draw the standard curve,Using infrared spectroscopy method,Draw a working curve using a certain concentration of silica standard substance as a reference,Reduce measurement errors,This method not only effectively reduces the influence of matrix effects,And the relative standard deviation,Easy sample processing,fast,Wide linear range for testing,Good reproducibility,Accurate results,Reliability and other advantages.Verified by first level standard substance,The measurement results are consistent with the recommended values,Meet the requirements of quality management standards for geological and mineral laboratory testing,Can be used for kaolin,Determination of silicon in clay.