Accel-X™ HPLC column hardware

• US 20060213823A1
• Filed: 03/01/2006
• Published: 09/28/2006
• Est. Priority Date: 03/01/2005
• Status: Abandoned Application

• Current Assignee: Sapphire Engineering, Inc.
• Original Assignee: Sapphire Engineering, Inc.
• Inventors: Rigoli, Michael
• Application Number:
  US11/365,450
• Publication Number:
  US 20060213823A1
• Time in Patent Office: Days
• US Class Current: 210/198.200
• CPC Class Codes: B01D 15/22 relating to the construction of the column
• CPC Class Codes: G01N 30/603 retaining the stationary phase, e.g. Frits
• CPC Class Codes: Y10T 29/496 Multiperforated metal article making

Abstract

The present invention comprises the next generation of narrow bore HPLC Column Hardware. The inventors have developed and designed narrow bore column hardware that provides the ultimate configuration to obtain optimum peak shape, improved sensitivity and reduced backpressure. The improvements of the present invention comprise a new HPLC column hardware design that can be utilized to improve chromatographic performance as follows: reduced backpressure, reduced band broadening, and increased plate count.

Claims

1. An HPLC column comprising:

a tube, wherein said tube comprises an inlet and an outlet;

an inlet end fitting;

an outlet end fitting;

an inlet frit, wherein said inlet frit comprises an inlet frit dead volume, an inlet frit material composition, and an inlet frit thickness; and

an outlet frit, wherein said outlet frit comprises an outlet frit dead volume, an outlet frit material composition, and an outlet frit thickness.

2. The HPLC column of claim 1, wherein said outlet frit dead volume is less than said inlet frit dead volume.

3. The HPLC column of claim 1, wherein said outlet frit material composition differs from said inlet frit material composition.

4. The HPLC column of claim 1, wherein said outlet frit thickness differs from said inlet frit thickness.

5. A method for manufacturing an HPLC Column, said method comprising the steps of:

providing an HPLC column to an end user;

incorporating an outlet end fitting during a packing process, wherein said outlet end fitting may be easily removed without disrupting packing material located at an outlet;

replacing said outlet end fitting.

6. The method of claim 5, wherein said step of replacing said outlet end fitting is performed by the end user.