Through the chemical reaction, the BSU is charged into siliester derivative that are vaporized into peak, so we can determine the main content of BSU by gas chromatography.
其中BSU是通过化学反应，将其转化生成可以在色谱中气化出峰的硅脂衍生物，再进行色谱法测定。
2
Derivative gas chromatography is used to analyze the fluorinated compound derived from the gas out of the rare earth concentrates containing fluorine.