Simple, field portable colorimetric detection device for organic peroxides and hydrogen peroxide

US7829020B2 · kind B2 · utility

Assignee

• Lawrence Livermore National Laboratory · US

Inventors

• Philip F. Pagoria · Livermore, US
• Alexander R. Mitchell · Livermore, US
• Richard E. Whipple · Livermore, US
• M. Leslie Carman · San Ramon, US
• John G. Reynolds · Corona, US
• Peter J. Nunes · Danville, US
• Sharon J. Shields · San Ramon, US

Key dates

• Filing date: Jul 31, 2008
• Grant date: Nov 9, 2010
• Expiry date: Jun 25, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T436/206664
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A simple and effective system for the colorimetric determination of organic peroxides and hydrogen peroxide. A peroxide pen utilizing a swipe material attached to a polyethylene tube contains two crushable vials. The two crushable vials contain a colorimetric reagent separated into dry ingredients and liquid ingredients. After swiping a suspected substance or surface the vials are broken, the reagent is mixed thoroughly and the reagent is allowed to wick into the swipe material. The presence of organic peroxides or hydrogen peroxide is confirmed by a deep blue color.