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
2,3,4-三氯联苯(PCB 21) 标准品
p-Bromomandelic acid (无证书)
Standards Mixture-8010/504/8011 (repkg) 2000ug/ml in Methanol
Imidacloprid urea 标准品
Copper-Cu solution 标准品
1,2,3,3a,4,5,6,7,8,9,9a,10,11,12-Tetradecahydroperylene
Benzo[g]chrysene
Burnt Refractory (Al203-60%)
2,3-Benzofuran 标准品
磺胺对甲氧嘧啶钠