Abstract
An electroanalytical method has been developed for the determination of the herbicides ethalfluralin[N-ethyl-N-(2-methyl-2-propenyl)-2,6-dinitro-4-(trifluoromethyl) bezenamine] and methalpropalin [N-(2-methyl-2-propenyl)-2, 6-dinitro-N-propyl-4 (trifluoromethyl) benzenamine] by differential pulse adsorptive stripping voltammetry (DP-AdSV) on a hanging mercury drop electrode (HMDE) with universal buffer as supporting electrolyte. The optimum adsorption conditions were found to be pH 6.0, an accumulation potential of −0.6 V (HMDE vs SCE), an accumulation time of 80 s. and scan rate 45 mVs−1. Calibration curve is linear in the range 1.30 × 10−9 to 1.32 × 10−5 M of ethalfluralin and 1.13 × 10−5 to 2.0 × 10−8 M of methalpropalin with detection limits of 1.08 × 10−9 and 1.87 × 10−8 M, respectively. The relative SD and correlation coefficients were found to be 1.24%, 0.998 and 1.34%, 0.995, respectively for ten replicates. The method is applied to the determination of the ethalfluralin and methalpropalin in formulations and environmental matrices.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Ahrens, W. A. (1994). Weed Science Society of America. WSSA Herbicide Handbook, 7th Edition; WSSA: Champaign, 1L, 12–12.
Aylward, G. H., & Hayes, J. W. (1964). Drop-time dependence of a.c. polarographic peak heights. Jornal of Electroanalytical Chemistry, 8, 442–448.
Brown, D., & Masiunas, J. (2002). Evaluation of herbicides for pumpkin (Cucurbita spp.). Weed Technology, 16, 282–292.
Cabras, P., & Melis, M. (1991). High-performance liquid chromatographic determination of dinitroaniline herbicides in soil and water. Journal of Chromatography B, 585, 164–167.
EPA; Office of Pesticide Programs (2002). Federal Register, 67, 2333–2333.
Guan, F., Watanabe, K., Ishii, A., Seno, H., Kumazawa, T., Hattori, H., et al. (1998). Headspace solid-phase microextraction and gas chromatographic determination of dinitroaniline herbicides in human blood, urine and environmental water. Journal of Chromatography B: Biomedical Sciences and Applications, 714, 205–213.
International Organisation for Standardisation (ISO) (2000). Weed Abstracts, 49, 1.
Morales, A., Richter, P., & Topal, M. I. (1987). Voltammetric behaviour of nitrofurazone, furazolidone and other nitro derivatives of biological importance. Analyst, 112, 965–970.
Shackelford, D. D., Mc Cormick, R. W., West, S. D., & Turner, L. G. (2000). Determination of Ethalfluralin in Canola Seed, Meal, and Refined Oil by Capillary Gas Chromatography with Mass Selective Detection. Journal of Agricultural and Food Chemistry, 48(9), 4422–4427.
Smith, A. E., Kerr, L. A., & Caldwell, B. (1997). Volatility of ethalfluralin, trifluralin, and triallate from a field following surface treatments with granular formulations. Journal Of Agricultural And Food Chemistry, 45, 473–1478.
Waite, D. T., Bailey, P., Sproull, J. F., Quiring, D. V., Chau, D. F., Bailey, J., et al. (2005). Atmospheric concentrations and dry and wet deposits of some herbicides currently used on the Canadian Prairies. Chemosphere, 58, 693–703.
Yao, Y., Tuduri, L., Harner, T., Blanchard, P., Waite, D., Poissant, L., et al. (2006). Spatial and temporal distribution of pesticide air concentrations in Canadian agricultural regions. Atmospheric Environment, 40, 4339–4351.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Thriveni, T., Kumar, J.R., Lee, J.Y. et al. Study of the voltammetric behaviour of the ethalfluralin and methalpropalin and its determination in environmental matrices at hanging mercury drop electrode. Environ Monit Assess 151, 9–18 (2009). https://doi.org/10.1007/s10661-008-0283-9
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10661-008-0283-9