Invention Grant
- Patent Title: Chromatographic materials
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Application No.: US15911630Application Date: 2018-03-05
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Publication No.: US10265679B2Publication Date: 2019-04-23
- Inventor: Kevin D. Wyndham , Michael F. Morris , Darryl W. Brousmiche , Jason F. Hill , Jacob N. Fairchild
- Applicant: Waters Technologies Corporation
- Applicant Address: US MA Milford
- Assignee: WATERS TECHNOLOGIES CORPORATION
- Current Assignee: WATERS TECHNOLOGIES CORPORATION
- Current Assignee Address: US MA Milford
- Agency: Womble Bond Dickinson (US) LLP
- Agent Deborah M. Vernon; Rebecca N. Barnes
- Main IPC: B01J20/28
- IPC: B01J20/28 ; B01J20/283 ; C07F7/18 ; B01D15/26 ; B01J20/288 ; B01J20/32 ; B01D15/30 ; B01D15/32 ; B01D15/40 ; B01D53/02 ; B01J20/22 ; B01J20/289 ; B01J20/30 ; B01J20/285 ; B01J20/284 ; B01J20/282

Abstract:
In one aspect, the present invention provides a chromatographic stationary phase material for various different modes of chromatography represented by Formula 1: [X](W)a(Q)b(T)c (Formula 1). X can be a high purity chromatographic core composition having a surface comprising a silica core material, metal oxide core material, an inorganic-organic hybrid material or a group of block copolymers thereof. W can be absent and/or can include hydrogen and/or can include a hydroxyl on the surface of X. Q can be a functional group that minimizes retention variation over time (drift) under chromatographic conditions utilizing low water concentrations. T can include one or more hydrophilic, polar, ionizable, and/or charged functional groups that chromatographically interact with the analyte. Additionally, b and c can be positive numbers, with the ratio 0.05≤(b/c)≤100, and a≥0.
Public/Granted literature
- US20180326399A1 CHROMATOGRAPHIC MATERIALS Public/Granted day:2018-11-15
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