A simple and sensitive capillary electrophoretic method with ultraviolet detection has been developed for the separation and determination of ferbam [iron(III)-dimethyldithiocarbamate], maneb [manganese(II)- ethylenebisdithiocarbamate] and zineb [zinc(II)-ethylenebisdithiocarbamate], in borate buffer, after their acidic decomposition and complexation with CDTA(trans-1,2-diaminocyclohexane-N,N,N′N′-tetraacetic acid monohydrate), as CDTA-metal complexes of Fe+3, Mn+2, and Zn+2. The determination is dependent on the pH and the nature of the buffer solutions. In this method, the detection limit (signal-to-noise ratio = 3) is 0.0013, 0.0022, and 0.0023 mM for ferbam, maneb, and zineb, respectively. The relative standard deviation for the analysis of 1 mM of each was found to be 1.5 ± 0.2%. The method was successfully applied for the analysis of red beans and grain samples spiked with ferbam, maneb, and zineb. The applicability of capillary electrophoresis as a useful tool for the simultaneous determination and analysis of ferbam, maneb, and zineb is demonstrated.
CITATION STYLE
Aulakh, J. S., Fekete, A., Malik, A. K., Mahajan, R. K., & Schmitt-Kopplin, P. (2007). Capillary electrophoretic-ultraviolet method for the separation and estimation of zineb, maneb, and ferbam in food samples. Journal of AOAC International, 90(3), 834–837. https://doi.org/10.1093/jaoac/90.3.834
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