7.糖的纸上层析

Whatman No.1滤纸，溶剂为正丁醇∶醋酸∶水（4∶1∶5）。30℃左右下行约7天。用苯胺-二苯胺试剂，硝酸银试剂或三苯基四唑化氯试剂［13］显色。(https://www.daowen.com)