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
Custom-PAH-Mix 77 10 ?g/mL in Toluene
BUTCHERS BROOM STANDARDS KIT
107种农残混标
Decane
甲派啶(缩节胺助壮素)
27种VOC混标 (GB 5749-2006)
Benzidine & 3,3'-DichlorobenzidineE 标准品
1,3-Dinitropyrene
Diallyl maleate
苯线磷亚砜;克线磷亚砜