The management of chloramine decay and the prevention of nitrification are some of the critical issues faced by water ut......

目的：探讨牛、羊胸腺肽的制备及其活性差异。方法：采用E玫瑰花结试验及凝胶过滤高效液相色谱法（HPSEC）检测胸腺肽活性及其组成。结果：牛......

Fucoidan, a polysaccharide containing abundant fucose and sulfate ester group, was prepared from Laminaria japonica. In ......