Separation achieves various goals: analytes which cannot be resolved by the detector may be separated in this step; in MS analysis ion suppression is reduced; the retention time of the analyte serves as information regarding its identity.
分离实现了多种目标：在这一步中可以分离出检测器无法分辨的分析物; 在质谱法(MS)分析中，离子抑制减少; 分析物的保留时间用作关于其身份的信息。