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填充气相色谱法是目前应用最广泛的一种色谱方法,而色谱载体又以硅藻土载体用得最多。载体的性能和选用对色谱柱柱效有着密切的关系。设计色谱柱,除了要考虑范第姆特(Van Deemter)方程式中各项动力学因素外,还要考虑分析对象、固定液、载体三者之间的热力学关系以及载体本身的物理性能,有时还要考虑仪器性能、操作要求等等因素。为了使样品获得高分离效率,首先要选择合适的固定液,这通常是气液色谱分析中最重要的一环。在固定液确定之后,载体的选用就成为一个重要的问题,
Fill gas chromatography is currently the most widely used chromatographic method, and the chromatographic support and diatomaceous earth support the most used. Carrier performance and selection of the column efficiency is closely related. In addition to considering the kinetic factors in the Van Deemter equation, the column should be designed considering the thermodynamic relationship between the analyte, the fixative, and the carrier as well as the physical properties of the carrier itself, and sometimes To consider the instrument performance, operational requirements and so on. In order to obtain high sample separation efficiency, we must first select the appropriate fixative, which is usually the most important part of gas-liquid chromatography. The choice of carrier becomes an important issue after fixing fluid is determined,