| Main Title |
Microbial Degradation of Seven Amides by Suspended Bacterial Populations. |
| Author |
Steen, W. C. ;
Collette, T. W. ;
|
| CORP Author |
Environmental Research Lab., Athens, GA. Office of Research and Development. |
| Publisher |
c1989 |
| Year Published |
1989 |
| Report Number |
EPA/600/J-89/247; |
| Stock Number |
PB90-135468 |
| Additional Subjects |
Biodeterioration ;
Water microbiology ;
Amides ;
Infrared spectroscopy ;
Hydrolysis ;
Molecular structure ;
Reprints ;
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB90-135468 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
7p |
| Abstract |
Microbial transformation rate constants were determined for seven amides in natural pond water. A second-order mathematical rate expression served as the model for describing the microbial transformation. Also investigated was the relationship between the infrared spectra and the second-order rate constants for these amides. Second-order rate constants (k2) ranged from a low of 2.0 x 10(-14) to a high of 1.1 x 10(-9) liters/organism/h for niclosamide (2',5-dichloro-4'-nitrosalicylanilide) and propachlor (2-chloro-N-isopropylacetanilide), respectively. The mechanism of degradation (i.e., microbially mediated hydrolysis) of the amides was consistent with that of other organic chemicals previously studied in a variety of natural waters. Preliminary investigations indicate that temporal variations in measured second-order rate constants are small. A simple linear regression of the infrared carbonyl-stretching frequency with log k2 gave a correlation coefficient (r2) of 0.962. (Copyright (c) 1989 American Society for Microbiology.) |
| Supplementary Notes |
Pub. in Applied and Environmental Microbiology, v55 n10 p2545-2549 Oct 89. See also PB88-214739. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Microbial Degradation of Seven Amides by Suspended Bacterial Populations. |
| Category Codes |
57K |
| NTIS Prices |
PC A02/MF A01 |
| Primary Description |
600/01 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
005317613 |
| Origin |
NTIS |
| Type |
CAT |
