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Title: Volatile organic compound sensing devices

Apparatus employing vapochromic materials in the form of inorganic double complex salts which change color reversibly when exposed to volatile organic compound (VOC) vapors is adapted for VOC vapor detection, VOC aqueous matrix detection, and selective VOC vapor detection. The basic VOC vapochromic sensor is incorporated in various devices such as a ground probe sensor, a wristband sensor, a periodic sampling monitor, a soil/water penetrometer, an evaporative purge sensor, and various vacuum-based sensors which are particularly adapted for reversible/reusable detection, remote detection, continuous monitoring, or rapid screening of environmental remediation and waste management sites. The vapochromic sensor is used in combination with various fiber optic arrangements to provide a calibrated qualitative and/or quantitative indication of the presence of VOCs. 15 figs.
Inventors:
; ; ;
Issue Date:
OSTI Identifier:
100970
Assignee:
Dept. of Energy, Washington, DC (United States) PTO; SCA: 540220; PA: EDB-95:131795; SN: 95001445703
Patent Number(s):
US 5,445,795/A/
Application Number:
PAN: 8-153,448
Contract Number:
AC07-76ID01570
Resource Relation:
Other Information: PBD: 29 Aug 1995
Research Org:
EG & G Idaho Inc
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; VOLATILE MATTER; DETECTION; ORGANIC COMPOUNDS; MEASURING INSTRUMENTS; DESIGN; REMEDIAL ACTION; SOILS; OPTICAL PROPERTIES; OPERATION; OPTICAL FIBERS; QUALITATIVE CHEMICAL ANALYSIS; QUANTITATIVE CHEMICAL ANALYSIS

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