公开(公告)号：WO2013090147A3

公开(公告)日：2016-02-04

申请号：PCT/US2012068520

申请日：2012-12-07

Applicant: WATERS TECHNOLOGIES CORP

Inventor： LUONGO JOSEPH A ,  DOBBS CRAIG HAMILTON

IPC: G01N30/00

CPC classification number: B01D15/14 ,  B01D15/166 ,  G01N30/20 ,  G01N30/34 ,  G01N30/38 ,  Y10T137/0363 ,  Y10T137/85986

Abstract: A liquid chromatography system includes a gradient proportioning valve in fluidic communication with sources of solvent. From the solvent sources, the gradient proportioning valve produces a low-pressure gradient stream. A first pump is in fluidic communication with the gradient proportioning valve to receive, pressurize, and move the pressurized low-pressure gradient stream to a flow-combining device. A second pump operates in parallel with the first pump and moves a pressurized solvent stream to the flow-combining device where the pressurized solvent stream combines with the low-pressure gradient stream to produce a high-pressure gradient stream. A second gradient proportioning valve can produce, from a second plurality of sources of solvent, a second low-pressure gradient stream, wherein the solvent stream moved by the second pump to the flow-combining device and combined with the other low-pressure gradient stream comprises the second low-pressure gradient stream.

Abstract translation: 液相色谱系统包括与溶剂源流体连通的梯度比例阀。 从溶剂来源，梯度比例阀产生低压梯度流。 第一泵与梯度比例阀流体连通，以将加压的低压梯度流接收，加压并移动到流动组合装置。 第二泵与第一泵平行操作并将加压溶剂流移动到流动组合装置，其中加压溶剂流与低压梯度流结合以产生高压梯度流。 第二梯度比例阀可以从第二多个溶剂源产生第二低压梯度流，其中溶剂流由第二泵移动到流动组合装置并与其它低压梯度流 包括第二低压梯度流。

公开(公告)号：EP2791666A4

公开(公告)日：2017-01-25

申请号：EP12858173

申请日：2012-12-07

Applicant: WATERS TECHNOLOGIES CORP

Inventor： LUONGO JOSEPH A ,  DOBBS CRAIG HAMILTON

IPC: G01N30/34 ,  B01D15/16 ,  G01N30/20 ,  G01N30/26

CPC classification number: B01D15/14 ,  B01D15/166 ,  G01N30/20 ,  G01N30/34 ,  G01N30/38 ,  Y10T137/0363 ,  Y10T137/85986