Field detection of 2,4,6-trinitrotoluene in water by ion-exchange resins
US4496520A · kind A · utility
3Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 20, 1982 |
| Grant date | Jan 29, 1985 |
| Priority date | — |
| Expiry date | May 20, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/173076
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and a device for the detection of trinitrotoluene (TNT) in efflu water from the purification apparatus of ammunition plants is described. The tube detector utilizes a basic oxide section to convert the TNT to its Meisenheimer anions, followed by an alkyl quaternary ammonium chloride ion-exchange resin which collects the colored anions. The length of the resultant stain is proportional to the concentration of TNT in the water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.