20590ES Desalting Column G25 M脱盐柱G25中 基质Dextran G25 M粒径85-260 µm最大上样量10%柱体积脱盐效率95%排阻极限5 kDa保存溶液20%乙醇 Specs 3 sizes Yeasen $52.50促 Inquire询 Detail详 20590ES03 1× 5 mL $378.00 20590ES08 5× 5 mL $1,708.00 20590ES10 10× 5 mL $3,328.00