Accession Number : ADA314599

Title :   Advanced Monitoring of Groundwater Cleanup Technologies. Phase I.

Descriptive Note : Monthly progress rept. no. 5, 3 Aug-3 Sep 96,

Corporate Author : ADVANCED FUEL RESEARCH INC EAST HARTFORD CT

Personal Author(s) : Markham, James R. ; Nelson, Chad M.

PDF Url : ADA314599

Report Date : 03 SEP 1996

Pagination or Media Count : 10

Abstract : The body of the miniature long path gas cell arrived from the machine shop. The body has been supported on the optical bench, along with transfer optics and the FT-IR spectrometer. The end-cap mirrors are all that are needed to complete the Phase I system. Diamond machining of the end-cap mirrors has been completed, and the parts were sent to the vendor for coating with protected silver. Measurements were made for trichloroethylene (TCE) with a gas analyzer equipped with a 20 meter, 1.6 liter volume cell that used gold coated mirrors of less than optimal sufface quality. 50 ppb TCE was easily detected; 20 ppb TCE did not greatly emerge above the instrumental baseline noise level. The results were promising when analyzed with regard to that expected for the novel cell being constructed.

Descriptors :   *MONITORING, *GROUND WATER, *CLEANING, *GAS CELLS, *INFRARED SPECTROMETERS, MIRRORS, OPTICAL EQUIPMENT, OPTICS, VOLUME, MACHINING, CELLS, DIAMONDS, GASES, COATINGS, BASE LINES, LEVEL(QUANTITY), NOISE, TRANSFER, ANALYZERS, GOLD, SHOPS(WORK AREAS), SILVER, FOURIER SPECTROMETERS, TRICHLOROETHYLENE.

Subject Categories : Industrial Chemistry and Chemical Processing
      Test Facilities, Equipment and Methods
      Water Pollution and Control

Distribution Statement : APPROVED FOR PUBLIC RELEASE