申请人:Waters Technologies Corporation
公开号:US11059026B2
公开(公告)日:2021-07-13
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.
一方面,本发明提供了一种用于各种不同色谱模式的色谱固定相材料,由式 1 表示:[X](W)a(Q)b(T)c(式 1)。X 可以是一种高纯度色谱核心组合物,其表面由二氧化硅核心材料、金属氧化物核心材料、无机-有机混合材料或其嵌段共聚物组构成。W 可以不存在和/或包括氢和/或包括 X 表面上的羟基。Q 可以是一种官能团,在利用低浓度水的色谱条件下,可使保留随时间的变化(漂移)最小化。T 可包括一个或多个亲水、极性、可电离和/或带电的官能团,这些官能团可与分析物发生色谱相互作用。此外,b 和 c 可以是正数,比值为 0.05≤(b/c)≤100,a≥0。