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wjc551

金虫 (正式写手)

[求助] 请教做农药残留, Supelco ENVI-Carb 和 graphitized carbon black (GCB) 填料的区别

如题,目前自己需开展农药残留方面的工作,文献中描述的材料多为Supelco 的graphitized carbon black (GCB)填料(货号14029-U),但是咨询过Supelco公司的工程师后,他说目前客户做农药残留应用的最多的是  ENVI-Carb  填料(货号57210-U),他们二者的价格相差还很大,不知哪位有过农残检测经验的虫子能否给些建议和指导!  

非常感谢,在线等!

附:
Supelclean™ ENVI-Carb™ 固相萃取散装填料(57210-U)
http://www.sigmaaldrich.com/cata ... h&region=CN

小颗粒石墨化炭黑吸附剂(14029-U)
http://www.sigmaaldrich.com/cata ... h&region=CN
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