Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10560059 | Talanta | 2005 | 5 Pages |
Abstract
A procedure has been developed for the direct fourth derivative spectrophotometric determination of tetramethyldithiocarbamate by converting it into its molybdenum complex, which is then extracted in to methyl isobutyl ketone (MIBK). Beer's law is obeyed over the concentration range 24 μg mLâ1 in the final solution. The analytical sensitivity is calculated to be 0.004(d4A/dλ4) μgâ1 mLâ1 from the slope of the calibration curve. The detection limit is 0.3 μg mLâ1 for thiram (signal to noise ratio = 2). Various parameters, such as effect of acid concentration, interference of a large number of ions in the determination of thiram have been studied in detail. The method is sensitive, highly selective and can be used for the determination of thiram in a commercial sample, in mixtures with various dithiocarbamates (zineb, maneb, etc.) and from wheat grains.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Vaneet Kumar Sharma, J.S. Aulakh, A.K. Malik,