如果企业客服不在线,也可拨打400电话联系。或者发布求购信息
芴
Metrosep A Supp 17 S-Guard-50/4.0
7种阴离子混标,Br/Cl/F/SO4/NO3(as N)/PO4(as P)/NO2(as N),溶于 H2O
WITOPED 充电器220V
硫代甜菜碱 8
2 in 1 套装, 1.5ml ND9 11 24 1049, 1000个/包装
MIXING BEAKERS SMALL
1-丁烯-3-醇,97.0%(GC)
2-溴-5-碘吡啶
可翻转双层碳管(用于二噁英样品前处理)