| Main Title |
Measurement of mass spectra for the EPA toxic substances data base / |
| Author |
Keith, Lawrence H.,
|
| CORP Author |
Radian Corp., Austin, TX.;Environmental Monitoring and Support Lab.-Cincinnati, OH. |
| Publisher |
Radian Corp. ; Reproduced by National Technical Information Service, |
| Year Published |
1983 |
| Report Number |
EPA/600/4-83-036; PB83255844 |
| Stock Number |
PB83-255844 |
| OCLC Number |
10418783 |
| Subjects |
Mass spectrometry ;
Poisons--Analysis
|
| Additional Subjects |
Mass spectroscopy ;
Chemical analysis ;
Contaminants ;
Environmental surveys ;
Purification ;
Distillation ;
Gas chromatography ;
Quality control ;
Toxic substances data base ;
Thin layer chromatography
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EKCD |
EPA/600/4-83-036 |
|
CEMM/GEMMD Library/Gulf Breeze,FL |
07/25/2018 |
| NTIS |
PB83-255844 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
viii, 25 pages : illustrations |
| Abstract |
A total of 3024 compounds were procured to measure high quality mass spectra for inclusion in the NIH/EPA mass spectral data base. Compounds were assayed for purity before mass spectra were measured and, when necessary, were purified by thin-layer chromatography, recrystallization, sublimation, or distillation. Compounds that were sufficiently volatile to be amenable to gas chromatography (GC) and were less than 99% pure were introduced by GC. Quality control procedures included the use of decafluorotriphenylphosphine (DFTPP) for the molecular leak and GC inlets and cholesterol for the direct insertion probe inlet. Spectra of these standards were required to meet stringent acceptance criteria every four hours of instrument operation. High quality mass spectra were measured for 2000 of the 3024 compounds procured. |
| Notes |
"July 1983." Prepared for: Environmental Monitoring and Support Laboratory, U.S. Environmental Protection Agency Contract Number: 68-03-2879 Final report. Microfiche. |
| Place Published |
Austin, Tex. Springfield, Va. |
| Corporate Au Added Ent |
Environmental Monitoring and Support Laboratory (Cincinnati, Ohio); Radian Corporation. |
| Alternate Title |
Measurement of mass spectra for the Environmental Protection Agency toxic substances data base |
| PUB Date Free Form |
1983 |
| BIB Level |
m |
| Medium |
microform |
| Content |
text |
| Carrier |
microfiche |
| Cataloging Source |
OCLC/T |
| OCLC Time Stamp |
20180718084247 |
| Language |
eng |
| Origin |
OCLC |
| Type |
MERGE |
| OCLC Rec Leader |
01732cam 2200409Ka 45010 |
