| Main Title |
Determination of the Insect Growth Regulator Methoprene in Natural Waters by Capillary Gas-Liquid Chromatography. |
| Author |
Knuth, M. L. ;
|
| CORP Author |
Environmental Research Lab.-Duluth, MN. |
| Publisher |
c1989 |
| Year Published |
1989 |
| Report Number |
EPA/600/J-89/085; |
| Stock Number |
PB90-103771 |
| Additional Subjects |
Insects ;
Pesticides ;
Growth regulators ;
Determination ;
Residues ;
Gas chromatography ;
Pest control ;
Shallow water ;
Watersheds ;
Statistical analysis ;
Reprints ;
Methroprene ;
Aquatic ecosystems ;
Flame ionization
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB90-103771 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
9p |
| Abstract |
Residues of methoprene were measured in natural waters by capillary gas-liquid chromatography (GLC). Methoprene was extracted in the field by liquid-liquid partitioning with dichloromethane, transported to the laboratory, and extracted a second time with hexane. The extracts were dried with Na2SO4 and analyzed by Capillary GLC on a 15m x 0.25 mm, DB-5 capillary column using a hydrogen flame ionization detector. The recovery of methoprene from natural waters was 107.6 plus or minus 20.2% (n=18). Methoprene was detected in 3 of 5 sites sampled and ranged from 0.39 to 8.8 micro g/L. |
| Supplementary Notes |
Pub. in Chemosphere, v18 n11-12 p2275-2281 1989. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Determination of the Insect Growth Regulator Methoprene in Natural Waters by Capillary Gas-Liquid Chromatography. |
| Category Codes |
68E; 68D |
| NTIS Prices |
PC A02/MF A01 |
| Primary Description |
600/03 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
932617189 |
| Origin |
NTIS |
| Type |
CAT |
