| Main Title |
Electron microprobe X-ray analysis of atmospheric aerosol particles, period covered December 1, 1968 to August 31, 1969. |
| CORP Author |
Advanced Metals Research Corporation. |
| Publisher |
[dist. by] Clearinghouse for Federal Scientific & Technical Information, Springfield, Va., |
| Year Published |
1969 |
| Report Number |
PHS-CPA-22-69-26 |
| Stock Number |
PB-189283 |
| OCLC Number |
19027550 |
| Subjects |
Aerosols ;
Electron microscopes
|
| Additional Subjects |
( Air pollution ;
X-ray spectroscopy) ;
( Aerosols ;
X-ray spectroscopy) ;
Passenger vehicles ;
Exhaust gases ;
Particle size ;
Waste gases ;
Electron microscopy ;
Smog ;
Automobile exhaust ;
Electron probes ;
Electron microprobe analysis
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBM |
TD883.1.A32 |
|
Headquarters Library/Washington,DC |
09/18/2012 |
| ESAM |
TD883.1.A32 |
|
Region 10 Library/Seattle,WA |
06/29/1991 |
| NTIS |
PB-189 283 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
77 p. : ill., charts ; 28 cm. |
| Abstract |
Electron microprobe analysis was applied to the chemical identification of the airborne particles characteristic of air pollution contaminants. A conventional AMR Electron Microprobe and a Philips EM200 Electron Microscope equipped with an AMR X-ray Spectrometer attachment were employed to investigate size-fractioned samples of laboratory generated aerosol particles of NaCl and Zn(NH4)2(SO4)2, as well as specific pollution sources, e.g. Los Angeles smog and auto exhaust. The effect of instrument variables, including electron beam size, acceleration potential, and beam current was determined for particles ranging in size from 3 microns to 0.5 microns. X-ray Spectral Patterns obtained from Los Angeles smog particles are presented and inherent limitations in the analytical technique are also discussed. Scanning electron microscopy was employed as a supplement to conventional electron microscopy and was found to furnish valuable information on the nature of the particulates. (Author) |
| Notes |
"PB 189 283". "Contract No. CPA 22-69-26" |
| Contents Notes |
Electron microprobe analysis was applied to the chemical identification of the airborne particles characteristic of air pollution contaminants. A conventional AMR Electron Microprobe and a Philips EM200 Electron Microscope equipped with an AMR X-ray Spectrometer attachment were employed to investigate size-fractioned samples of laboratory generated aerosol particles of Na Cl and Zn (NH4)2 (SO4)2, as well as specific pollution sources, e.g. Los Angeles Smog and Auto Exhaust. The effect of instrument variables, including electron beam size, acceleration potential, and beam current was determined for particles ranging in size from 3mu to 0.5mu. |
| Place Published |
Burlington, Mass. |
| Alternate Title |
Electron microprobe X-ray analysis of atmospheric aerosol particles : for Department of Health, Education and Welfare, Consumer Protection and Environmental Health Service |
| PUB Date Free Form |
1969 |
| NTIS Prices |
PC A05 MF A01 |
| BIB Level |
m |
| Cataloging Source |
OCLC/T |
| OCLC Time Stamp |
20120913113619 |
| Language |
eng |
| Origin |
OCLC |
| Type |
MERGE |
| OCLC Rec Leader |
02063cam 2200277Ka 45020 |
