The base pair ratio, at: GC, is constant within a species but differs between species.
GC之间的碱基比具有种内特异性，但在不同种之间往往是不同的。
Based on liquid chromatographic (LC) monolithic columns, the high-permeable monolithic columns can be applied in GC through changing the ratio of toluene and dodecanol.
以液相色谱用毛细管整体柱作为研究基础，通过改变甲苯和十二醇的比例，使整体柱适用于气相色谱分析。
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