Reactive frontal chromatography (RPC) using N2O as the probe molecule is an adequate technique for the purpose since it requires no complex apparatus, is easy to use and exhibits good reproducibility.

• N2O前沿反应色谱法(RFC)对设备要求简单，操作简便，测定结果重现性好，是测定铜催化剂中铜的表面积的有效方法。