Waters Oasis HLB吸附剂是由亲脂性二乙烯苯和亲水性N-乙烯基吡咯烷酮两种单体按一定比例聚合成的大孔共聚物。其保留机理为反相，通过一个“特殊的极性捕获基团”来增加对极性物质的保留提供很好的水浸润性。

   Waters Oasis HLB固相萃取小柱特点：

• 用于酸性，中性和碱性化合物的通用型吸附剂。

• 高而稳定的回收率。即使柱床干涸，回收率也不受影响。

• 高吸附容量。于硅胶相比，Oasis吸附剂的表面积增大2-3倍，容量因子大大提高，30mg Oasis HLB的吸附容量，相当于100mg C18。

• 杰出的批次间重现性

• 良好的化学稳定性

• 与各种自动化固相萃取装置兼容。

Oasis HLB 6 cc Vac Cartridge, 200 mg Sorbent per Cartridge, 30 µm Particle Size, 30/pk [WAT106202]

    The 6 cc Oasis HLB cartridges contain the Oasis HLB sorbent, which is a universal polymeric reversed-phase sorbent that was developed for the extraction of a wide range of acidic, basic, ａnd neutral compounds from various matrices using a simple, generic protocol. Since the Oasis HLB sorbent is water wettable, it maintains its capability for higher retention ａnd excellent recoveries even if the sorbent runs dry, which means there is no need to take extraordinary steps to keep the sorbent beds from drying out during the critical steps prior to sample loading. These syringe-barrel-type cartridges are designed for use with vacuum manifolds ａnd automated SPE instruments.