| Main Title |
Water pesticides no. 1 report of a study conducted by Analytical Reference Service / {microform} : study number 24 ; |
| Author |
Lishka, Raymond J.
|
| CORP Author |
Robert A. Taft Sanitary Engineering Center, Cincinnati, Ohio. |
| Publisher |
Robert A. Taft Sanitation Engineering Center, |
| Year Published |
1966 |
| Report Number |
PHS PUB 999 WP 39; PHS-Pub-999-WP-39 |
| Stock Number |
PB-173 984 |
| Subjects |
Pesticides ;
Water--Analysis
|
| Additional Subjects |
( Insecticides ;
Selection) ;
( Pesticides ;
Gas chromatography) ;
Separation ;
Solvent extraction ;
Statistical analysis ;
Detection ;
Water ;
Solutions ;
Sampling ;
Chemical analysis
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB-173 984 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
xi, 64 p. : ill. ; 23 cm. |
| Abstract |
In this study, two solutions of ethyl acetate containing different mixtures of lindane, heptachlor epoxide, DDE, and dieldrin were analyzed, both before and after dilution with water, by 31 participating laboratories. ONE PARTICIPANT USED PAPER CHROMATOGRAPHY, AND THE REST USED GAS CHROMATOGRAPHY; FOUR OF THE LATTER EMPLOYED THE MICROCOULOMETRIC DETECTOR, AND THE REST USED THE ELECTRON CAPTURE DETECTOR. Best resus were obtained with a mixed column packing containing both polar and nonpolar materials. Satisfactory results were also obtained with a single-component column when a prior separation of the pesticides by passage through a florisil or alumina chromatographic column was made before injection on the gas chromatograph. The newer model C-200 Dohrmann microcoulometer produced satisfactory results at the concentrations present in this sample. Failure to correct adequately for incomplete recovery of pesticide in the extraction procedure produced low results in the diluted sample. |
| Notes |
Microfiche. |
| Place Published |
Cincinnati, Ohio : |
| Corp Au Ser Add Ent |
Environmental health series. no.999-WP-39 United States. ; Environmental health series. no.999-WP-39 United States. ; Environmental health series. no.999-WP-39 United States. |
| PUB Date Free Form |
1966 |
| Series Title Untraced |
Public Health Service publication ; No. 999-WP-39 |
| NTIS Prices |
PC A05 MF A01 |
| BIB Level |
m |
| Cataloging Source |
OCLC/T |
| OCLC Time Stamp |
20040206135532 |
| Language |
eng |
| Origin |
NTIS |
| Type |
MERGE |
| OCLC Rec Leader |
00953nam 2200253Ka 45020 |
