最近最新的日本中文MV_麻豆出品视频在线_超pen个人视频97_国产精品第一国产精品_国产香蕉片_免费看麻豆文化传媒_奶大灬舒服灬太大了一进一出_人妻激情偷乱一区二区三区

Substitution Functional Group:-O-CH2-CH2-NH2TentaGel® resins are constructed with a backbone of low crosslinked polystyrene grafted with polyoxyethylene (polyethylene glycol) as shown below.; The typical chain length of POE (n) is approximately 68 ethylene oxide units or an average MW of 3000. This long chain creates a spacer that effectively separates the reactive site (X) from the crosslinked backbone matrix.; TentaGel® HL (High Load) (mean particle size 75 µm: capacity 04-06 meq/g)