The experiment on the type and dosage of extractants found that it is difficult for monovalent anionic salts (sodium chloride) to form a dual aqueous phase with PEG, and the dual aqueous phase formed by sodium sulfate is unstable. The demand for sodium carbonate is high, and the phosphate phase separation is slow. 2. The dual aqueous phase formed by ammonium sulfate is fast and stable. Therefore, ammonium sulfate was chosen as the salt for phase separation. Further experiments have found that the PEG2000 aqueous two-phase system is effective for VB. The extraction rate is not as high as PEG6000

西安瑞禧生物科技有限公司经营的产品种类包括有：合成磷脂、高分子聚乙二醇衍生物、嵌段共聚物、磁性纳米颗粒、纳米金及纳米金棒、近红外荧光染料、活性荧光染料、荧光标记的葡聚糖BSA和链霉亲和素、蛋白交联剂、小分子PEG衍生物、点击化学产品、树枝状聚合物、环糊精衍生物、大环配体类、荧光量子点、透明质酸衍生物、石墨烯或氧化石墨烯、碳纳米管、富勒烯，二氧化硅及介孔二影产品，荧光蛋白及荧光探针等等。

产品名称：花菁染料标记PEG化生物素

英文名称：cy-PEG-BiotinMW:2000

状态：固体/粉末/溶液

产品规格：mg

保存：N/A

储藏条件：N/A

储存时间：1年

用途：科研

温馨提醒：仅供科研，不能用于人体实验

相关产品：

花菁染料-聚乙二醇-巯基
菁染料PEG巯基
CY-PEG-SH
CY3-PEG-SH
CY3.5-PEG-SH
CY5-PEG-SH
CY5.5-PEG-SH
CY7-PEG-SH
CY7.5-PEG-SH
NH2-PEG2000-CY5
CY5-PEG5K-NH2
CY5-PEG2K-NH2  
CY3-PEG2000-NH2
CY7-PEG2K-NH2
CY5-PEG1K-NH2

温馨提示:西安瑞禧生物供应产品仅用于科研,不能用于人体