Varian公司(Palo Alto, CA, USA)開發(fā)了兩種Omix微型吸取方法。一種無需真空SPE即可處理生物液體樣本，將其直接輸送至液體處理設備的尖端，另外一種是微型容量的96孔板，專門設計用于處理體積很小的樣本。Omix 技術具有單塊集成電路技術，能夠高效吸取很小體積的樣本，從而改進了樣本分析處理的質量。

Omix微型吸取移液器吸嘴可以用于Tomtec(Hamden, CT, USA)的Quadra設備，免除了真空處理的需要，確保設備能夠全自動運行。SPE第一次能夠直接用于Quadra兼容的吸嘴，因為Omix單塊集成電路介質具有雙向、無障礙流體特性。這就意味著清洗工作十分簡單，從而增加了工作效率。

Streamlining Sample Preparation
 
Two Omix micro-extraction formats were developed by Varian, Inc. (Palo Alto, CA, USA). One enables vacuum-free SPE processing of biofluid samples directly in the tip of a liquid-handling device, while the other is a micro-volume 96-well plate specifically designed to process small sample volumes. The Omix technology features monolithic sorbent technology that allows for highly efficient extractions performed with low elution volumes, which improves sample throughput and analytic quality.

The Omix micro-extraction pipette tips for the Quadra instruments of Tomtec (Hamden, CT, USA) eliminates the need for vacuum processing and allows the instruments to be used in a fully automated capacity. For the first time, SPE can be performed directly in the Quadra compatible pipette tips, due to the bi-directional, clog-free flow properties of the Omix monolithic media. This means clean-up is simplified and reproducibility is improved.