The micromorphologies of surfaces of several typical plant leaves were investigated by scanning electron micros-copy(SEM......

在滤纸的纤维素分子上形成黄原酸酯，使其吸附植物叶片处理液中的铜，用纸上光度法测定铜的含量。当铜溶液浓度为９×１０＾６ｍｏｌ．Ｌ＾－１时，等浓度的锌，铁......