Accession Number : AD0428612

Title :   REPORT OF COOPERATIVE INVESTIGATION WITH THE AGRICULTURAL RESEARCH SERVICE FOR ADAPTING A METHOD FOR THE DETECTION AND MEASUREMENT OF FENAC IN IRRIGATION WATERS,

Corporate Author : BUREAU OF RECLAMATION DENVER COLO

Personal Author(s) : Lyons ,E. T. ; Tranutt ,P. R. ; Timblin,L. O. , Jr

Report Date : 02 AUG 1963

Pagination or Media Count : 21

Abstract : The data in this report show that it is possible to determine fenac (common chemical name for 2, 3, 6 trichlorophenylacetic acid 1/2/) in irrigation waters in concentrations as low as 20 ppb by the use of gas chromatographic techniques; the limit of detection alone is 10 ppb. This investigation has been successful in attaining its objective, but much remains to be done with regard to further investigation and development of this method. The results stated and the conclusions drawn in the report are based upon a minimum of data; this limitation is placed upon them. There are some features in the extraction of the acid from the water and in the preparation of the extract for the gas chromatographic analysis that need to be improved and further study may indicate more. The operating conditions required to obtain these results are such that the instrumental components are made to function at levels somewhat higher than those in normal usage. So far, however, there has been no operational malfunction due to this cause. Instruments of greater initial sensitivity would produce more precise data. (Author)

Descriptors :   (*WATER, CHROMATOGRAPHIC ANALYSIS), (*IRRIGATION SYSTEMS, TEST METHODS), BIOCHEMISTRY, DETECTION, CHEMICALS, DETERMINATION, CARBOXYLIC ACIDS, AROMATIC COMPOUNDS, CHLORINE COMPOUNDS, MEASUREMENT

Distribution Statement : APPROVED FOR PUBLIC RELEASE