Because the mature tissue of velvetleaf contains lots of secondary metabolites such as alkaloid and phenolic, it is difficult to obtain high purity DNA from mature tissue of velvetleaf.

摘要青麻成熟组织中酚、等次生代谢物较多，要从中提取出高纯度DNA比较困难。

Guv Team provides every kind of high purity materials, and inspects the purity by some Convincible authority organization such as SGS inspection to fit EU’s standard.

我们努力及精良制造技术，在钨、钼、钽、钛等材质制品有著国际竞争优势。

Certified reference material of the high-purity silicasol was prepared by removing impurity ions from the high purity silicasol according to the ion exchange resin.

采用离子交换法实现了高纯硅溶胶主成分与众多杂质离子分离,并制备了高纯硅溶胶标准物质。

Ethyl phenylacrylate intermediate bringing a double bond was introduced first,which is subsequently transformed into triketone and then DCM was obtained with high purity.

采用具有烯烃骨架β-苯基丙烯酸酯为中间体先引入双键,再经过三合环制备乙烯基吡喃。

High purity titanium sesquioxide was obtained by the reaction of high purity hydrogen and titanium dioxide in the presence of titanium tetrachloride.

用高纯氢和高纯钛，在四氯钛存在下，可以得到高纯三钛。

Its advantages include high purity of carotin crystal, low acidity of the oil solution of carotin and stable quality.

本发明获得胡萝卜素晶体纯度高，胡萝卜素油溶品酸价低、质量稳定。

High purity amygdalin was obtained from apricot kernel by the process of enzyme destruction, defatting, solvents extraction and recrystallization.

苦杏仁经灭酶、脱脂、萃取、重结晶,制得高纯苦杏仁苷。

Ultrafine zircon powder with high purity is a kind of brightening agent in glaze for making high-grade cleaning whiteware.

高纯超细锆英石粉是制造高档卫生洁具陶瓷所用釉料中乳浊增白剂。

The lamp cup is made from Germany-original anodic alumian of high purity, featuring long life and durability.

灯杯采用高纯铝雾面阳极处理，永久耐用。

Deoxygenate was used to remove the remanent oxygen from gas for supplying the high purity gas.

脱剂用于脱除气体中微量气以提供含量极微高纯气体。