| Main Title |
Comparison of wet chemical and instrumental methods for measuring airborne sulfate / |
| Author |
Appel, B. R. ;
Kothny, E. L. ;
Hoffer, E. M. ;
Wesolowski., J. J.
|
| Other Authors |
|
| CORP Author |
California State Dept. of Health, Berkeley. Air and Industrial Hygiene Lab.;Environmental Sciences Research Lab., Research Triangle Park, N.C. |
| Publisher |
Environmental Sciences Research Laboratory, Office of Research and Development, Environmental Protection Agency ; Available from the National Technical Information Service, |
| Year Published |
1976 |
| Report Number |
EPA-600/2-76-059; EPA-68-02-1660 |
| Stock Number |
PB-264 201 |
| OCLC Number |
02657507 |
| Subjects |
Sulfates ;
Aerosols ;
Air--Pollution ;
Gases--Analysis ;
Sulfates--Measurement
|
| Additional Subjects |
Sulfates ;
Laboratory equipment ;
Aerosols ;
Concentration(Composition) ;
Chemical analysis ;
Gas analysis ;
Air pollution ;
X ray analysis ;
Fluorescence ;
Sulfur ;
Industrial wastes ;
Combustion products ;
Samples ;
United States ;
Particles ;
Colorimetry ;
Experimental design ;
Accuracy ;
Precision ;
Comparisons ;
Turbidimeters ;
Air pollution detection ;
Procedures ;
Brosset method ;
Methylthymol blue
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD ARCHIVE |
EPA 600-2-76-059 |
|
Headquarters Library/Washington,DC |
08/29/2011 |
| EJBD |
EPA 600-2-76-059 |
c.1 |
Headquarters Library/Washington,DC |
02/24/2014 |
| EKBD |
EPA-600/2-76-059 |
|
Research Triangle Park Library/RTP, NC |
06/13/2003 |
| ELBD |
EPA 600-2-76-059 |
|
AWBERC Library/Cincinnati,OH |
06/25/2019 |
| ESAD |
EPA 600-2-76-059 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
| NTIS |
PB-264 201 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
viii, 137 pages : illustrations ; 29 cm |
| Abstract |
Four techniques for determination of water soluble sulfate in atmospheric samples were compared including the barium sulfate turbidimetric method, the Brosset (barium-Thorin) method, the automated barium-methylthymol blue procedure and a microchemical (barium-dinitro-sulfanazo III) colorimetric method developed at the Air and Industrial Hygiene Laboratory. These, in turn, were compared to x-ray fluorescence for determination of total sulfur, obtained independently at the Environmental Protection Agency's Research Triangle Park Laboratory. The parameters studied included precision and accuracy employing standard solution and ambient air samples, and the influence of twelve potential interferents. The ambient air samples studied were collected at different locations throughout the U.S. so that the influence of different particle matrices could be evaluated. As supplementary objectives, analyses of particulate matter samples collected simultaneously on high volume and low volume glass-fiber filters, with and without size segregation, were compared. Results of the study are presented. (Portions of the document are not fully legible.) |
| Notes |
"EPA-600/2-76-059." "March 1976." Contract Number: 68-02-1660 "Project officer: Carole R. Sawicki"--Beneath title. Includes bibliographical references. |
| Contents Notes |
Four techniques for determination of water soluble sulfate in atmospheric samples were compared including the barium sulfate turbidimetric method, the Brosset (barium-Thorin) method, the automated barium-methylthymol blue procedure and a microchemical (barium-dinitro-sulfanazo III) colorimetric method developed at the Air and Industrial Hygiene Laboratory. These, in turn, were compared to x-ray fluorescence for determination of total sulfur, obtained independently at the Environmental Protection Agency's Research Triangle Park Laboratory. The parameters studied included precision and accuracy employing standard solution and ambient air samples, and the influence of twelve potential interferents. The ambient air samples studied were collected at different locations throughout the U.S. so that the influence of different particle matrices could be evaluated. As supplementary objectives, analyses of particulate matter samples collected simultaneously on high volume and low volume glass-fiber filters, with and without size segregation, were compared. Results of the study are presented. (Portions of the document are not fully legible.). |
