Sample deposition device

• US 5,681,437 A
• Filed: 10/31/1995
• Issued: 10/28/1997
• Est. Priority Date: 10/31/1995
• Status: Expired due to Term

• Current Assignee: Perkinelmer Life Sciences Incorporated (Revvity, Inc.)
• Original Assignee: Isolab Inc.
• Inventors: Jackson, Michael E., Greczanik, Vincent J., Black, Jeffrey A.
• Primary Examiner(s): Gorgos, Kathryn L.
• Assistant Examiner(s): STARSIAK, JOHN S
• Application Number:
  US08/550,746
• Time in Patent Office: 728 Days
• Field of Search: 436/180, 422/99, 422/100, 422/104, 422/56, 73/61.54, 204/456, 204/466, 204/467, 204/606, 204/616, 204/618, 204/619, 204/620, 222/187
• US Class Current: 204/456
• CPC Class Codes: G01N 27/44743 Introducing samples
• CPC Class Codes: G01N 35/1095 for supplying the samples to flow-through analysers for a specific analyser see relevant groups, e.g. under G01N15/00, G01N21/00, G01N27/00, G01N30/00, H01J49/00
• CPC Class Codes: Y10T 436/2575 Volumetric liquid transfer

Abstract

The present invention is a sample deposition device for depositing a plurality of samples onto a test media substrate, and a method of depositing a plurality of samples onto a planar test media substrate, such as a stationary phase chromatographic medium, agar or tissue. In broadest terms, the device of the present invention comprises (a) a substantially planar support portion defining a plane; and (b) an array of substantially planar absorbent portions permanently connected to the support portion, the absorbent portions aligned substantially parallel to said plane. The absorbent portions may be impregnated with a test sample before use. The present invention also includes a method of depositing one or more samples onto a test media substrate.

Claims

1. A sample deposition device for depositing a plurality of samples onto a test media substrate, comprising a single piece of a substantially planar cotton linter paper, said single piece of cotton linter paper cut so as to form:

(a) a substantially planar support portion deforming a support plane;

(b) an array of substantially planar absorbent portions defining a portion plane and permanently connected to said support portion, said array of absorbent portions aligned in the plane of said support plane.

2. A sample deposition device according to claim 1 wherein said absorbent portions are arranged in a regularly spaced array.

3. A sample deposition device according to claim 1 additionally comprising a releasable cover of a polymeric material attached to said device.

4. A method of depositing a plurality of samples onto a substantially planar test media substrate, said method comprising:

(a) obtaining a substantially planar test media substrate; and

(b) placing onto said substantially planar test media substrate a sample deposition device for depositing a plurality of samples onto a test media substrate, said device comprising a single piece of a substantially planar absorbent material, said single piece of material cut so as to form;

(i) a substantially planar support portion defining a support plane;

(ii) an array of substantially planar absorbent portions defining a portion plane and permanently connected to said support portion, said absorbent portions aligned in the plane of said support plane, at least one of said absorbent portions comprising cotton linter paper and being impregnated with at least one of said plurality of samples.

5. A method according to claim 4 wherein said test media substrate is selected from the group consisting of electrophoresis gels, thin layer chromatography media, agar, and organic tissue.