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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.
Inventors:
 [1];  [1];  [1];  [2]
  1. (Idaho Falls, ID)
  2. (Stillwater, MN)
Issue Date:
OSTI Identifier:
870048
Assignee:
United States of America as represented by United States (Washington, DC) INEEL
Patent Number(s):
US 5445795
Contract Number:
AC07-76ID01570
Research Org:
EG & G IDAHO INC
Country of Publication:
United States
Language:
English
Subject:
volatile; organic; compound; sensing; devices; apparatus; employing; vapochromic; materials; form; inorganic; double; complex; salts; change; color; reversibly; exposed; voc; vapors; adapted; vapor; detection; aqueous; matrix; selective; basic; sensor; incorporated; various; ground; probe; wristband; periodic; sampling; monitor; soil; water; penetrometer; evaporative; purge; vacuum-based; sensors; particularly; reversible; reusable; remote; continuous; monitoring; rapid; screening; environmental; remediation; waste; management; sites; combination; fiber; optic; arrangements; provide; calibrated; qualitative; quantitative; indication; presence; vocs; continuous monitoring; particularly adapted; organic compound; fiber optic; volatile organic; sensing device; quantitative indication; sensing devices; various devices; vapor detection; remote detection; complex salts; change color; environmental remediation; apparatus employing; /422/