| Main Title |
On-line measurement of the infrared spectra of gas chromatographic eluents / |
| Author |
Griffiths, Peter R.,
|
| Other Authors |
|
| CORP Author |
Ohio Univ., Athens. Dept. of Chemistry.;Environmental Research Lab., Athens, Ga. |
| Publisher |
Environmental Protection Agency, Office of Research and Development, Environmental Research Laboratory, For sale by the National Technical Information Service. |
| Year Published |
1976 |
| Report Number |
EPA 600/4-76-061; EPA-R-803517 |
| Stock Number |
PB-265 570 |
| OCLC Number |
03852974 |
| ISBN |
pbk. |
| Subjects |
Gas chromatography
|
| Additional Subjects |
Gas chromatography ;
Infrared spectrometers ;
Organic compounds ;
Gas detectors ;
Design criteria ;
Monitoring ;
Gas analysis ;
Performance evaluation ;
Chemical analysis ;
Trace elements ;
Concentration(Composition) ;
Interferometers ;
Forecasting ;
Air pollution ;
Fourier transform spectroscopy ;
Air pollution detection
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD |
EPA 600-4-76-061 |
|
Headquarters Library/Washington,DC |
09/15/2014 |
| EKBD |
EPA-600/4-76-061 |
|
Research Triangle Park Library/RTP, NC |
07/25/2003 |
| ELBD ARCHIVE |
EPA 600-4-76-061 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
DISPERSAL |
| ESAD |
EPA 600-4-76-061 |
|
Region 10 Library/Seattle,WA |
01/02/1998 |
| NTIS |
PB-265 570 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
vii, 13 pages : illustrations ; 28 cm. |
| Abstract |
Techniques for increasing the sensitivity of the interface between a gas chromatograph and a rapid-scanning Fourier transform infrared spectrometer (GC-IR) have been developed. A single-beam system, in which a triglycine sulfate (TGS) detector is used to measure the interferogram, has been designed and constructed. Identifiable infrared spectra of submicrogram quantities eluting from a gas chromatograph have been measured without trapping the sample using this system. A double-beam configuration for GC-IR has also been designed so that a cooled mercury cadmium telluride detector can be used to further decrease the detection limits without limiting the sensitivity by digitization noise. Each of these systems necessitates the use of light-pipes with relatively long (30 cm) absorbing paths but low reflection losses. |
| Notes |
Prepared under grant no. R803517-01-0. Report prepared by Department of Chemistry, Ohio University, Athens, Georgia. Issued Dec. 1976. Includes bibliographical references. |
