Main Title |
Automated Gas Chromatographic System for Pesticide Residue Analysis. |
Author |
Johnson, John H. ;
Sturino, Emilio E. ;
Bourne., Sidney ;
|
CORP Author |
Environmental Protection Agency, Chicago, Ill. Central Regional Lab. |
Year Published |
1977 |
Report Number |
EPA/905/4-77/001; |
Stock Number |
PB-263 690 |
Additional Subjects |
Pesticides ;
Gas chromatography ;
Chemical analysis ;
Residues ;
Phthalates ;
Esters ;
Concentration(Composition) ;
Air pollution ;
Water pollution ;
Detection ;
Automation ;
Potable water ;
Surface waters ;
Sediments ;
Biological extracts ;
Pesticide residues
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB-263 690 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
14p |
Abstract |
Gas chromatograms of pesticides and phthalate esters obtained by an automatic injection system are analyzed by a computerized gas chromatographic data system. The system described provides for simultaneous injection onto two independent columns equipped with individual detectors. The gas chromatographic output is processed by the computer into a report for each column listing the names and concentrations for compounds of interest. The system has sufficient reliability to allow detection of chlorinated pesticides at the picogram level and organophosphorous pesticides and phthalates at the nanogram level. This system is readily incorporated into currently accepted methods for pesticide residue analysis. Once the system is calibrated, 42 samples can be analyzed for 45 parameters without operator intervention. |