http://pubs.acs.org/doi/abs/10.1021/np050157a?journalCode=jnprdf；这篇文章里就有薄层展开和显色的条件。描述如下：
The purity of samples was checked by HPTLC on silica gel 60F 254 (E. Merck), using
the solvent system PrOH -AcOH -H2O (4:1:1), and chlorine-o-tolidine reagent or iodine vapor was used for detection.试试看，我是做过类似实验，当时照着他的文章做，不过结果不太好。
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