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A Compact, Low-Cost, Near-UV Sensor for Chlorine Dioxide

Award Information

Environmental Protection Agency
Award ID:
Program Year/Program:
2006 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Southwest Sciences, Inc.
1570 Pacheco Street Suite E-11 Santa Fe, NM 87505-3993
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2006
Title: A Compact, Low-Cost, Near-UV Sensor for Chlorine Dioxide
Agency: EPA
Contract: EP-D-06-057
Award Amount: $70,000.00


Southwest Sciences proposes the development of an optical, near-ultraviolet chlorine dioxide sensor having a measurement range for about 0.01 to 2000 ppm with a response time of less than 10 seconds. The sensors will be compact - about the size of a 1quart milk carton including electronic and optics - operate a low power, and be outfitted with wireless communications interface to permit remote, unattended operation. Intrinsically safe design is possible. The proposed measurement method is linear, free of hysteresis and free of interference from common atmospheric gasses as well as urban and industrial pollutants. The sensors will operate well as high humidity and will be able to tolerate moisture condensation. Analyzers will retain calibration for extended periods (many months). Commercial applications include real-time sensors for monitoring and controlling ClO2 decontamination of building and other enclosed spaces, and for monitoring chloride dioxide water purification processes and facilities. In Phase II, we will try to extend the diode-laser method to chlorine detection; that will provide extra utility for characterization and for monitoring combined ClO2/Cl2 decontamination and purifications processes. We also plan to participate in EPA¿s Environmental Technology Verifications (ETV) program in order to establish performance specifications for the prototype analyzer.

Principal Investigator:

David S. Bomse
Principla Research Scientist

Business Contact:

Alan C. Stamtopm
Small Business Information at Submission:

Southwest Sciences, Inc.
1570 Pacheco St. Suite E-11 Santa Fe, NM 87505

EIN/Tax ID: 850340320
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No