Invention Grant
US08715593B2 Pipette tips for extraction, sample collection and sample cleanup and methods for their use
失效
移液提取提取,样品收集和样品清洗及其使用方法
- Patent Title: Pipette tips for extraction, sample collection and sample cleanup and methods for their use
- Patent Title (中): 移液提取提取,样品收集和样品清洗及其使用方法
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Application No.: US12525546Application Date: 2008-02-21
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Publication No.: US08715593B2Publication Date: 2014-05-06
- Inventor: William Brewer
- Applicant: William Brewer
- Agency: Nexsen Pruet, LLC
- Agent Sara C. Kanos
- International Application: PCT/US2008/054584 WO 20080221
- International Announcement: WO2008/103828 WO 20080828
- Main IPC: B01D15/00
- IPC: B01D15/00 ; B01L3/02

Abstract:
The present invention is a pipette tip device for extraction of liquid, semi-solid or solid solutions to be chemically analyzed and the methods for their use. The pipette tip extraction device contains a screen or filter at its lower narrow end to contain solid particulate matter and a barrier at its upper wide end. The optional upper frit is to be made of material that permits liquid solutions to flow through it. In addition to the barrier and screen, the pipette tip extraction device may contain solid-phase sorbent. Through the use of a removable cap, the pipette extraction tip may also serve as a sample collection container or tip in which samples can be delivered to the top of the tip (e.g., for direct collection of samples, including solid samples). A new method for DPX extraction using liquid-liquid-solid-phase extraction is also disclosed.
Public/Granted literature
- US20100081209A1 PIPETTE TIPS FOR EXTRACTION, SAMPLE COLLECTION AND SAMPLE CLEANUP AND METHODS FOR THEIR USE Public/Granted day:2010-04-01
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