BD培养基 212484 10 kg EA Difco LB Broth Base, Select APS (Alternative Protein Source) 选择性APS LB肉汤基础 
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 212484 10 kg EA Difco LB Broth Base, Select APS (Alternative Protein Source) 选择性APS LB肉汤基础