BD培养基 212486 10 kg EA Difco Super Broth Base, Select APS (Alternative Protein Source) APS选择性超级肉汤 
修饰性PEG
DSPE SH COOH MAL NH2 巯基 羧基 氨基 四臂 八臂PEG WAKO和光纯药
BD培养基 212486 10 kg EA Difco Super Broth Base, Select APS (Alternative Protein Source) APS选择性超级肉汤