sc3

SC3 Technology Committee , responsible for quality and technology standards .

SC3分技术委员会负责质量技术标准的制订。

CONCLUSION SC3 is an complicated acidic polysaccharide , obtained for the first time from the plant .

结论SC3为一结构复杂的酸性杂多糖，为首次从该植物中分得。

AIM To study the chemical structure of SC3 , an acidic polysaccharide from Salvia chinensis .

目的研究从中药石见穿（Salviachinensis）全草中得到的酸性多糖SC3的化学结构。

Moreover the charge transfer rate coefficient of Sc3 + with neutral molecules H2 and N2 is measured .

并首次测量了Sc3+离子与中性气体分子H2和N2的电荷转移速率系数。

The results showed that , the reduction processes of the Al3 + and Sc3 + ions were diffusion-controlled charge-transfer reversible processes . However , there were kind of irreversible in the processes .

结果表明Al3+和Sc3+离子的阴极还原反应均是受扩散传质步骤控制的可逆过程，但都存在一定的不可逆性。

METHODS Based on chemical ( including sugar composition analysis , methylation analysis , uronic acid reduction and partial acid hydrolysis ) and spectral analysis ( IR , NMR , ESI-MS ), the structural characterization of SC3 was investigated .

方法利用化学方法（糖组成分析、甲基化分析、糖醛酸还原及部分酸水解）和光谱方法（IR，NMR，ESIMS）分析其结构特征。

Sugarbeet protoplasts were isolated from hypocotyl - derived callus ( SC3 ) and unpollinated ovule-derived callus ( SC1 , SC2 ) respectively . Then the protoplasts were cultured in MSB ( 2 ) medium with shallow liquid layer .

从甜菜下胚轴愈伤组织SC3和未授粉胚珠愈组织SC1、SC2中分离到原生质体，在MSB（2）培养基中进行液体浅层培养。