Method of stabilizing a specimen slide for occult blood testing

• US 4,329,317 A
• Filed: 01/29/1981
• Issued: 05/11/1982
• Est. Priority Date: 01/29/1981
• Status: Expired due to Term

• Current Assignee: Smith Kline Instruments Incorporated
• Original Assignee: Smith Kline Instruments Incorporated
• Inventors: Lawrence, Paul J., Townsley, Charles W., Detweiler, Michael B.
• Primary Examiner(s): Turk, Arnold
• Application Number:
  US06/229,430
• Time in Patent Office: 467 Days
• Field of Search: 23/230 B, 23/931, 23/932, 23/913, 422/58, 422/55, 422/56, 422/57
• US Class Current: 436/176
• CPC Class Codes: G01N 33/726 Devices
• CPC Class Codes: Y10T 436/2525 Stabilizing or preserving

Abstract

Specimen test slides for occult blood having a receiving sheet between a front panel and a rear panel with openings in the front and rear panels and pivotal covers coated with 2,6-di-tert-butyl-p-cresol to cover said openings.

Claims

1. A method of stabilizing a specimen slide for occult blood testing having a guaiac treated specimen receiving sheet between a front panel and a rear panel with openings in the front and rear panels and pivotal covers to cover said openings which comprises applying a solution or suspension of 2,6-di-tert-butyl-p-cresol to said pivotal covers.

2. The method of claim 1 in which the solution or suspension is applied to the inside cover of the slide.

3. The method of claim 1 in which the 2,6-di-tert-butyl-p-cresol is in a varnish solution or suspension.

4. The method of claim 1 in which the 2,6-di-tert-butyl-p-cresol is in a solution of acetone.

5. The method of claim 1 in which the 2,6-di-tert-butyl-p-cresol is present from about 2 to about 3 percent by weight.

6. The method of claim 1 in which the solution is printed on the pivotal covers.