| Main Title |
Bioassay-Directed Fractionation of the Organic Extract of SRM 1649 Urban Air Particulate Matter. |
| Author |
Lewtas, J. ;
Chuang, J. ;
Nishioka, M. ;
Petersen, B. ;
|
| CORP Author |
Health Effects Research Lab., Research Triangle Park, NC. ;Battelle Columbus Labs., OH. |
| Publisher |
c1990 |
| Year Published |
1990 |
| Report Number |
EPA/600/J-90/541; |
| Stock Number |
PB91-242511 |
| Additional Subjects |
Aerosols ;
Particulates ;
Fractionation ;
Solvent extraction ;
Air pollution ;
Bioassay ;
Urban areas ;
Mutagenicity tests ;
Samples ;
Reprints ;
SRM 1649 ;
Standard reference materials
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB91-242511 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
14p |
| Abstract |
Separation of 2 grams of the methylene chloride extraction of NIST SRM 1649 (Washington, D.C. urban air particulate matter) into six compound class fractions by acid-base partitioning and silica gel column chromatography is demonstrated here. Recoveries of organic mass and Salmonella typhimurium TA98 mutagenic activity were greater than 80 percent. The fractionation method showed reproducible distribution of both mass and mutagenic activity; the compound class mass distribution results were similar to those obtained for more typical analytical fractionation of a milligram quantity of the extract mass. The most polar compound class fractions contained the greatest proportions of mutagenic activity. (Copyright (c) 1990 Gordon and Breach, Science Publishers, Inc.) |
| Supplementary Notes |
Pub. in International Jnl. of Environmental Analytical Chemistry, v39 n3 p245-256 Jul 90. See also PB91-242529. Prepared in cooperation with Battelle Columbus Labs., OH. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Bioassay-Directed Fractionation of the Organic Extract of SRM 1649 Urban Air Particulate Matter. |
| Category Codes |
68A; 68G; 57U |
| NTIS Prices |
PC A03/MF A01 |
| Primary Description |
600/10 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
131121695 |
| Origin |
NTIS |
| Type |
CAT |
