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
9-HYDROXYFLUORENE (13C6, 99%) 50 UG/ML IN TOLUENE 标准品
Tin - Sn metal, 99.998%, 2% HNO3+0.5% HF
5-alpha Androstane 标准品
Doxepin-d3 HCl (N-methyl-d3) 标准品
Surrogate Spiking Mixture - 1657 2000ug/ml in Acetone
硝咪吗啉
21种农残混标
Aminomalonic Acid Bis(4-aminobutyric Acid)amide Trifluoroacetic Acid Salt
农药辛硫磷溶液标准物质
左旋紫草素 对照品