以下为句子列表：
英文: The methods such as distn. and silica gel column chromatography were used to sep. the various components of the thickener, and the IR spectrometry, GC-MS combination and ESI-MS were used to certify the structures of the different components.
中文: 用蒸馏和矽胶柱色谱等方法对增稠剂中的各组分进行分离，并用红外光谱法、气质联用和电喷雾质谱法对各组分进行结构鉴定。
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