| Main Title |
Determination of Benzidines by Gas Chromatographic Separation of Derivatives with Electron Capture Detection. |
| Author |
Kawahara, F. K. ;
Dunn, J. R. ;
Fiutem, F. A. ;
McCullough, P. J. ;
|
| CORP Author |
Environmental Monitoring and Support Lab.-Cincinnati, OH. |
| Year Published |
1982 |
| Report Number |
EPA-600/J-82-011; |
| Stock Number |
PB83-116962 |
| Additional Subjects |
Chemical analysis ;
Gas chromatography ;
Water pollution ;
Water analysis ;
Reprints ;
Benzidines ;
Water pollution detection ;
Electron capture detectors
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB83-116962 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
16p |
| Abstract |
Factors considered in the development of a method for the determination of toxic, water-soluble benzidines, involved providing a good technique for their adequate recovery, converting quantitatively the isolated amines to relatively stable derivatives suitable for measurement and storage, coupled with relative ease of preparation of the derivatives, and resolving the prepared compounds during their measurement. Benzidine and dichlorobenzidine are quantitatively extracted from wastewater and measured quantitatively through the preparation of their respective pentafluoropropionamides (PFP) by using PFP-imidazole. Overall recovery efficiency for benzidines from wastewater ranges from 91 to 103%. These derivatives are relatively stable compounds and have detection limits of 0.2 pg or less, when electron capture detection is used with gas chromatograpy. Derivatives of o-tolidine and dianisidine are also described. |
| Supplementary Notes |
Pub. in Analytica Chimica Acta 138, p207-220 1982. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Determination of Benzidines by Gas Chromatographic Separation of Derivatives with Electron Capture Detection. |
| PUB Date Free Form |
1982 |
| Category Codes |
7D; 99A; 68D |
| NTIS Prices |
PC A02/MF A01 |
| Primary Description |
600/06 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
303626039 |
| Origin |
NTIS |
| Type |
CAT |
