Abstract
A highly sensitive fourth derivative spectrophotometric method is presented for the residue analysis of ethylenebis dithiocarbamate fungicide Maneb. The fungicide maneb forms a blue complex with sodium molybdate on heating which is studied spectrophotometrically. The method has been successfully applied to maneb determination in wheat grains and soft drinks with high recoveries. The analytical sensitivity of the present method has been found to be 0.0011 μg/mL.
Highlights
Maneb (Figure 1) is a common dithiocarbamate (DTC) fungicide available as dust and dispersible powder [1]
A highly sensitive fourth derivative spectrophotometric method is presented for the residue analysis of ethylenebis dithiocarbamate fungicide Maneb
Most of the developed methods like spectrophotometry and gas chromatography [9] are based on the analysis of CS2, H2S or amines, which are evolved during decomposition of EBDCs
Summary
Maneb (manganese ethylenebisdithiocarbamate) (Figure 1) is a common dithiocarbamate (DTC) fungicide available as dust and dispersible powder [1]. In the wake of above knowledge, it is imperative that highly sensitive and efficient methods be developed for the residue analysis of dithiocarbamate pesticides like maneb in various food and environmental samples. A microwave assisted extraction method involving hydrolysis of dithiocarbamates and their analysis in tobacco leaves was developed by Vryzas et al [14] A DPP (Differential pulse polarographic) technique has been employed for the determination of DTC residues by Schwack et al [15] Lo et al have determined propineb, zineb, maneb and mancozeb by an HPLC method [16]. Cronogorac et al have presented a method using hydrophilic interaction-LC-Tandem Mass Spectrometry for the determination for DTC fungicide residues in fruit and vegetables [18]. The first derivative, second derivative, third derivative and fourth derivative curves were given in Figures 3-6 respectively
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
