| Main Title |
Measurement of atmospheric sulfates. Evaluation of the methylthymol blue method / |
| Author |
Bergman, Fred J., ;
Sharp., Michael C.
|
| Other Authors |
|
| CORP Author |
Midwest Research Inst., Kansas City, Mo.;Environmental Monitoring and Support Lab., Research Triangle Park, N.C. Environmental Monitoring Branch. |
| Publisher |
U.S. Environmental Protection Agency, Office of Research and Development, Environmental Monitoring and Support Laboratory, |
| Year Published |
1976 |
| Report Number |
EPA-600/4-76-015; EMSL/RTP No. 7; EPA-68-02-1728 |
| Stock Number |
PB-253 349 |
| OCLC Number |
52753239 |
| Subjects |
Sulfates--Measurement--Evaluation ;
Sulfates--Analysis ;
Air--Pollution--Measurement ;
Air--Pollution--Research
|
| Additional Subjects |
Sulfates ;
Chemical analysis ;
Filtration ;
Least squares methods ;
Air pollution ;
Tests ;
Concentration(Composition) ;
Ion exchangers ;
Wavelengths ;
Stability ;
Sodium ;
Salts ;
Air pollution detection ;
Methylthymol blue method
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD |
EPA-600-4-76-015 |
|
Headquarters Library/Washington,DC |
12/24/2014 |
| EKBD |
EPA-600/4-76-015 |
|
Research Triangle Park Library/RTP, NC |
08/01/2003 |
| ELBD ARCHIVE |
EPA-600-4-76-015 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ESAD |
EPA 600-4-76-015 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
| NTIS |
PB-253 349 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
1 volume (47 pages in various pagings) : illustrations ; 28 cm. |
| Abstract |
The methylthymol blue (MTB) procedure used by EPA for sulfate analysis has been subjected to a ruggedness test. The method write-up has been modified to strengthen the procedure where required. A new procedure developed by EPA for extracting sulfates from the filter samples has been incorporated in the write-up. The absorbance for the MTB procedure has been established as hyperbolic. The method, as now presented, appears to be reasonably rugged with the exception of phosphate interference, which remains a problem. A potential approach for eliminating the phosphate interference is presented. |
| Notes |
Description based on online version of print resource (EPA, viewed February 21, 2023); title from title page. "EPA-600/4-76-015"--Cover. "EMSL/RTP No. 7." "March 1976." "Michael E. Beard, Quality Assurance Branch, Environmental Monitoring and Support Laboratory, U.S. Environmental Protection Agency." "Performing organization: Midwest Research Institute"--Technical report data sheet. In scope of the U.S. Government Publishing Office Cataloging and Indexing Program (C&I); not distributed in this format as part of the Federal Depository Library Program (FDLP). Includes bibliographical references. Final; Prepared for U.S. Environmental Protection Agency, Office of Research and Development, Environmental Monitoring and Support Laboratory Contract Number: 68-02-1728 |
| Place Published |
Research Triangle Park, N.C. |
| Access Notes |
Also available via the World Wide Web |
| Corporate Au Added Ent |
Environmental Monitoring and Support Laboratory (Research Triangle Institute),; Environmental Monitoring and Support Laboratory (Research Triangle Institute). Quality Assurance Branch.; Midwest Research Institute (Kansas City, Mo.) |
| Corp Au Ser Add Ent |
United States. Environmental Protection Agency. Environmental monitoring series ; EPA-600/4-76-015. |
| PUB Date Free Form |
1976 |
| Series Title Untraced |
Environmental monitoring series ; EPA-600/4-76-015 |
| NTIS Prices |
PC A03/MF A01 |
| BIB Level |
m |
| Cataloging Source |
OCLC/T |
| OCLC Time Stamp |
20141217153651 |
| Language |
eng |
| Origin |
OCLC |
| Type |
MERGE |
| OCLC Rec Leader |
01958cam 2200409Ki 45020 |
